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Wildfire smoke from Canada is drifting into the Midwest again, leaving hazy skies and stretches of unhealthy air across the region.

Even though the fires may be hundreds or thousands of miles away, the smoke they produce can still foul the air outside your home, and some of it works its way indoors. You cannot control which way the wind blows, but you can take real steps to cut the smoke inside your home and protect the people who live there.

Why Is Wildfire Smoke Dangerous?

Wildfire smoke is a mixture of gases and microscopic particles. One of the biggest concerns is fine particulate matter known as PM2.5, particles small enough to travel deep into the lungs.

PM2.5The fine particle that drives most smoke health effects

MERV 13Minimum filter rating the EPA recommends for smoke

AQI 101+Where sensitive groups should start limiting exposure

Exposure can cause coughing, wheezing, headaches and more. Common symptoms include:

Children, older adults, pregnant people and those with asthma, COPD, heart disease or other medical conditions may be more likely to feel these effects.

Check the Air Quality Before Going Outside

The Air Quality Index, usually called the AQI, gives you a quick read on current outdoor air. You can check your local number through AirNow or your preferred weather service. Air quality shifts throughout the day as wind direction and smoke concentrations change.

What the AQI Numbers Mean

Use the index, not just how the sky looks, to decide whether it is safe outside.

101–150 · Unhealthy for Sensitive Groups. Children, older adults and people with heart or lung conditions should cut back on prolonged outdoor activity.
151–200 · Unhealthy. Everyone may begin to feel effects and should consider limiting strenuous activity outdoors.
201 or higher · Very Unhealthy or Hazardous. Reduce outdoor exposure and follow local public-health guidance.

Even when the sky does not look especially smoky, fine particles may still be in the air. Trust the AQI over visibility alone.

9 Ways to Protect Your Home During a Smoke Event

Keep Windows and Doors Closed

Opening the windows on a cool day feels good, but it lets outdoor smoke pour in. During poor air quality:

Sealing obvious leaks also makes your home more comfortable and eases the load on your heating and cooling system.

Set Your HVAC System to Recirculate

Most home systems already recirculate indoor air, but some include a fresh-air intake that brings outdoor air in. If yours has one, switch it to recirculation mode or close the outdoor-air intake during a smoke event. The recirculate setting in your vehicle helps when driving through smoky conditions too.

Do not block vents or change equipment unless you know how your system is set up. A professional can help identify whether your home has an outdoor-air intake.

Check and Upgrade Your HVAC Filter

Your furnace and central air conditioner generally share the same filter, and during a smoke event it can capture some of the fine particles moving through your home. Start by inspecting your current filter and replace it if it is visibly dirty or overdue.

For better particle filtration, the EPA recommends a MERV 13 filter, or the highest-efficiency filter your system can safely handle.

Before you jump ratings: higher-efficiency filters create more resistance to airflow. A filter your system was not designed for can hurt performance or strain the equipment. Check your manufacturer’s instructions or ask a professional before a big change in filter rating, and check the filter more often during heavy smoke.

Run the HVAC Fan More Often

Your filter only cleans the air while the blower fan is running. During a significant smoke event, moving the fan from Auto to On keeps indoor air passing through the filter even when the system is not actively cooling.

Continuous operation uses more electricity and should only be used when your filter and system are in good shape. Return the fan to its normal setting once air quality improves.

Create a Cleaner-Air Room

When outdoor air gets especially bad, pick one room to serve as a cleaner-air space. A bedroom or family room with few exterior doors or windows usually works well.

To set up the room:

This is especially helpful for children, older adults and people with heart or lung conditions.

Use a Portable HEPA Air Cleaner

A portable air cleaner adds filtration in bedrooms, home offices and other rooms you use often. Look for a unit with:

Place it where furniture and curtains will not block airflow, keep the door and windows closed, and run it continuously at the highest comfortable setting. Portable units clean one room or area and are not a replacement for maintaining your central system.

Avoid Creating More Indoor Pollution

When outdoor smoke is already affecting your home, skip activities that add particles or irritants to the air. Try to limit:

When practical, use lower-pollution cooking methods like a microwave, slow cooker or pressure cooker. Wiping and damp-mopping surfaces removes settled particles without stirring them back into the air.

Do Not Rely on UV Lights for Smoke Removal

Some whole-home air quality systems use UV light to target certain biological contaminants. But wildfire smoke is mainly a particle-filtration problem, and UV lights do not replace a high-efficiency HVAC filter or a portable HEPA cleaner when your goal is reducing smoke particles.

Skip ozone generators

Avoid air-cleaning products that intentionally generate ozone. Ozone can irritate the lungs and make indoor air quality worse, not better.

Limit Outdoor Exposure

When the AQI is elevated, cut back on strenuous outdoor activity and move exercise indoors when you can. If you must spend extended time outside in smoky conditions, a properly fitting NIOSH-approved N95 or P100 respirator can reduce how much fine particulate matter you breathe in.

The respirator has to fit tightly around your nose and mouth to work. People with respiratory or cardiovascular conditions should follow their healthcare provider’s advice.

Pay attention to how you and your family feel during poor air quality. People with asthma, COPD or heart disease should keep medications on hand and follow their care plans, and contact a healthcare provider if symptoms become unusual or worsen.

When to get help right away

Seek immediate medical help for severe difficulty breathing, significant chest pain or other signs of a medical emergency.

Can Your HVAC System Remove All Wildfire Smoke?

No home HVAC system can guarantee completely smoke-free air. A well-chosen filter reduces airborne particles, but it may not remove every particle, odor or gas tied to wildfire smoke. The best results come from combining several strategies.

The layered approach that works best

  1. Keep outdoor smoke from getting in
  2. Recirculate indoor air
  3. Use the best HVAC filter your system can safely handle
  4. Add portable HEPA filtration where you need it
  5. Reduce other sources of indoor pollution

Frequently Asked Questions

What MERV filter is best for wildfire smoke?

The EPA recommends a MERV 13 filter, or the highest-efficiency filter your HVAC system can safely accommodate, to capture the fine PM2.5 particles in wildfire smoke. Because higher-rated filters restrict airflow more, confirm your system can handle the upgrade before switching. A professional can tell you the highest rating your equipment supports.

Should I set my thermostat fan to On or Auto during a smoke event?

During heavy smoke, set the fan to On so indoor air keeps moving through the filter even when the system is not actively heating or cooling. On Auto, the fan only runs during a heating or cooling cycle, so the filter cleans far less air. Return the fan to Auto once outdoor air quality improves.

Do I need a portable air purifier if I have central HVAC?

A central system with a good filter is your whole-home baseline, but a portable HEPA air cleaner adds extra filtration in the rooms you use most, like a bedroom. Choose a unit sized for the room, with a true HEPA filter and no ozone generation. Portable units clean one area and do not replace maintaining your central system.

Will a UV light remove wildfire smoke from my air?

No. UV lights are designed to target certain biological contaminants, not the fine particles that make up wildfire smoke. Smoke is a particle-filtration problem, so a high-efficiency HVAC filter and a portable HEPA cleaner are the right tools. Avoid any device that intentionally produces ozone, which can worsen indoor air quality.

How do I check the air quality where I live?

Check your local Air Quality Index (AQI) through AirNow or your preferred weather service. Air quality can change through the day as wind and smoke shift, so check more than once during an active smoke event, and rely on the number rather than how hazy the sky looks.

Let Peterman Brothers Help You Breathe Easier

Not sure your current filter is right for your system? Concerned about your home’s indoor air quality? Our team can inspect your system, confirm the filter ratings it can safely support, and walk you through whole-home indoor air quality solutions.

Explore Indoor Air Quality Services

Ready to talk it through? Contact Peterman Brothers today and let’s improve the air inside your home.

What a Duct Cleaning Is

Duct cleaning, also called air duct cleaning, means removing dust, debris, and buildup from the ducts in your home that carry heated and cooled air.

A good HVAC duct cleaning job focuses on:

What Duct Cleaning Can and Can’t Do

Here’s what duct cleaning can help with

What duct cleaning won’t fix on its own

Who Benefits Most From Duct Cleaning

1) After Remodeling or Construction

Renovations can leave drywall dust and fine debris sitting in duct runs, which can keep recirculating long after the project ends.

Common clue: dust returns quickly even after cleaning, especially near supply vents.

2) Visible Buildup Near Vents

If there’s heavy buildup right behind registers, that’s one of the clearest signs the ductwork has collected more than normal household dust.

Quick check: remove a vent cover and look inside with a flashlight. Thick buildup is hard to miss.

3) Pest Activity in the Duct System

When pests get into ductwork, cleaning is often part of getting the home back to normal (and removing what you don’t want circulating).

Most common clue: nesting material, droppings, or a specific “animal” smell tied to one area.

4) Odors that get stronger when the HVAC runs

Duct cleaning won’t solve every smell, but it can help when the duct system is holding onto odor sources or debris.

Tell-tale sign: musty or stale smells ramp up when the system turns on and fade when it’s off.

5) Suspected Blockage in a Duct Run

It’s less common, but debris or buildup can restrict a branch line, leaving one area underserved.

What you’ll notice: one or two rooms consistently have weak airflow after basic causes (filters/closed vents) have been ruled out.

When Duct Cleaning Usually Isn’t Worth It

1) If you want it to fix allergies

If allergies are your main concern, the bigger fixes usually are:

Duct cleaning might help sometimes, but it’s rarely the best first step.

2) If the real problem is comfort or airflow

Uneven temperatures, weak airflow, and humidity problems usually come from duct leaks, design, system size, or airflow balance, not dirty ducts.

3) If no one can explain why you need it

If there’s no clear reason related to your home, like photos, visible buildup, or a recurring problem, that’s a warning sign.

If You Skip Duct Cleaning, What Should You Do Instead?

If you want cleaner air or less dust, start with the fixes that usually help more:

These steps often make a bigger difference than duct cleaning by itself.

Bottom Line

Duct cleaning helps most after remodeling, when there’s visible debris, pest problems, or odors linked to the ducts. It usually won’t fix allergies, uneven temperatures, or high energy bills on its own. If you’re not sure, start with filtration, checking for return leaks, and controlling humidity.

Why Choosing the Right Furnace Filter Matters

Effects on HVAC Performance, Efficiency & Energy Bills

Your furnace filter isn’t just a dust trap—it directly affects how well your HVAC system runs.
A clogged or incorrect filter can restrict airflow, causing your system to overwork and increasing energy use by up to 15%.

How Furnace Filters Impact Indoor Air Quality (IAQ)

Filters capture dust, dander, and allergens before they circulate through your home.
The better the filter, the fewer airborne irritants linger—especially important for allergy sufferers and households with pets.

Consequences of Using the Wrong Filter Type

Using the wrong size or an overly restrictive filter can damage your blower motor, decrease efficiency, and reduce your system’s lifespan.
Correct fit and rating are essential for both safety and performance.

Step-by-Step: How to Choose the Best Furnace Filter

Step 1: Find the Correct Filter Size

Where to Find Furnace Filter Size

Check the edge of your old filter—it typically lists the dimensions (e.g., 16×25×1).
No label? Measure the opening where the filter sits.

Why Exact Fit Matters

An ill-fitting filter leaves gaps that let dust bypass filtration.
Always match your system’s required size exactly to maintain airflow efficiency and protect internal components.

Step 2: Understand MERV Ratings (1–16+)

What MERV Ratings Mean

MERV (Minimum Efficiency Reporting Value) measures how well a filter captures particles:

Best MERV Ratings by Home Type

Most homes perform best with MERV 8 or MERV 11 filters—strong enough to trap allergens, gentle enough on your system.

When High MERV Filters Cause HVAC Strain

Using a MERV 13+ filter in a standard furnace can reduce airflow and increase wear.
Unless your HVAC system is rated for it, avoid ultra-high MERVs.

Step 3: Avoid Overhyped or Problematic Filters

Scented, Reusable, and Gimmicky Filters to Skip

Why Pleated Filters Are the Best Value

Pleated filters balance cost, performance, and durability.
They capture fine particles without reducing airflow, making them ideal for long-term system health.

What to Avoid

Don’t bend or force the filter. Avoid loose installs, which allow dust to bypass the filter entirely.

When to Replace Your Furnace Filter

Filter Lifespan by Thickness

Replacement Frequency for Pets, Allergies, and Heavy Use

If you have pets, allergy concerns, or high usage, change filters more often.
Monitor for visible dirt or reduced airflow.

Signs Your Filter Needs Replacing

Make It Easy: Join a Furnace Filter Delivery Program

What Is the Filter Saver Club?

A subscription service that delivers the exact filter size and rating you need on a custom schedule.

Benefits of Scheduled Filter Delivery

How to Subscribe

Visit FilterSaverClub.com and enter your filter size and frequency.
Set it and forget it.

FAQ: Furnace Filter Tips You Won’t Find on the Label

What’s the difference between pleated and fiberglass filters?

Fiberglass filters are cheaper but less effective—they only trap larger particles, such as lint or hair.
Pleated filters use denser material to catch smaller allergens, dust, and even mold spores.

Can I vacuum and reuse a disposable filter in a pinch?

It’s not recommended. Vacuuming damages the filter media and compromises its integrity.
It may look cleaner, but it won’t trap fine particles effectively after being vacuumed.

Are HEPA filters good for furnaces?

HEPA filters offer excellent filtration but are generally not compatible with standard residential HVAC systems due to high airflow resistance.
Use only if your system supports HEPA explicitly or has a bypass unit.

Final Takeaway

Best Practices for Furnace Filter Maintenance

Choosing the right furnace filter—and replacing it on time—is one of the easiest ways to protect your HVAC system, lower energy bills, and improve your home’s air quality. If you have any questions or need help installing yours, feel free to reach out.

Long-Term Benefits for Your System and Wallet

Want to take the guesswork out of it?
The Filter Saver Club delivers your filters on time, every time—so your system (and lungs) can breathe easy.

Why Catch HVAC Issues Early?

Your HVAC system doesn’t come with a dashboard alert—but it does give off early warning signs. If you catch them in time, you can avoid uncomfortable breakdowns, high energy bills, and expensive repairs. Most experts recommend servicing your system twice a year—once in spring and again in fall.

Regular maintenance boosts:
– System efficiency
– Comfort and air quality
– Equipment lifespan

It also protects your warranty and helps avoid sudden, costly failures.

1. Strange Noises (Grinding, Squealing, or Banging)

HVAC systems are meant to run quietly. If yours starts making squealing, rattling, or grinding noises, that could mean a loose belt, worn bearings, or electrical issues. Left unchecked, these can quickly lead to complete system failure or costly damage.

What to do: Schedule a professional inspection to catch the cause early—before it gets louder (and more expensive).

2. Musty or Burning Smells

Unusual odors are never “normal.” Musty smells could signal mold buildup in your ductwork, while burning smells may point to electrical overheating. Both can affect your air quality and safety.

What to do: Shut the system off and call for service. These issues are best addressed immediately.

3. Weak Airflow or Uneven Heating/Cooling

If certain rooms are harder to heat or cool—or the airflow feels weaker than usual—your blower fan, ducts, or filter may be the culprit. This can lead to poor performance and rising energy bills.

What to do: Don’t just crank up the thermostat. Let a pro inspect your system for blockages, leaks, or fan issues.

4. Short Cycling or Running Constantly

Short cycling (where your system turns on and off repeatedly) is hard on components and inefficient. Running constantly means something’s off with system sizing, insulation, or internal wear.

What to do: A technician can test your thermostat, refrigerant levels, and system calibration to fix the root cause.

5. Unexplained Energy Bill Spikes

Has your electric bill jumped without a change in usage? That’s often a sign your system is overworking—due to dirty filters, clogged coils, or a failing part.

What to do: Schedule a maintenance check to restore efficiency before your next billing cycle.

6. Water Leaks or Moisture Around the Unit

Condensate lines can clog. Evaporator coils can freeze. Either way, water leaking around your unit isn’t just messy—it’s a warning sign of deeper issues.

What to do: Shut the system off and call a technician before it causes mold or water damage.

7. High Humidity Indoors

HVAC systems help dehumidify your home. If your air feels muggy or sticky even when the system’s on, it might be failing to regulate humidity.

What to do: Have your system checked to improve comfort and indoor air quality—especially in Indiana’s humid months.

8. Frequent Repairs or a System Over 10 Years Old

If you’re calling for repairs more than once a year—or your system’s over a decade old—it might be losing efficiency and reliability.

What to do: Consider whether a new system would save more long-term than continued repairs

9. Thermostat Problems or Inaccurate Readings

If your thermostat isn’t responding, the temperature never feels right, or your settings don’t match performance, it may be miscalibrated, the system itself is lagging, or even in a bad location.

What to do: Let us check both the thermostat and HVAC unit to restore comfort and control.

10. You’re Not Changing Filters Regularly

Dirty filters are the #1 cause of preventable HVAC problems—they restrict airflow, strain your system, and reduce indoor air quality. But changing them is easy to forget

Enter: The Filter Saver Club

We created the Filter Saver Club to make filter changes completely hassle-free.

Here’s how it works:
– You tell us your system and filter size
– We deliver new filters right to your door, on your schedule
– No trips to the store, no forgetting, no stress

Why it matters:
– Keeps your air cleaner and healthier
– Protects your HVAC system from early wear
– Helps lower energy costs
– Extends system lifespan

It’s one of the easiest things you can do to prevent breakdowns—and it’s surprisingly affordable. Join now, and we’ll handle the rest.

When Should You Call a Pro?

If you notice:
– Burning or electrical odors
– No airflow or cooling
– Leaking water
– Loud or unusual noises
– Your HVAC runs but doesn’t cool or heat properly

…it’s time to call the experts at Peterman Brothers.

We proudly offer HVAC Maintenance Services across Indiana, Ohio, Kentucky, and parts of Michigan, including routine tune-ups, complete diagnostics, and seasonal checkups.

Quick HVAC Maintenance FAQ for Homeowners

How often should I service my HVAC?
Twice a year—once in spring (A/C) and once in fall (heating).

How often should I replace filters?
Every 1–3 months, depending on usage and filter type. Our Filter Saver Club helps automate it.

Can I do HVAC maintenance myself?
You can handle filter changes and basic cleaning. But inspections, refrigerant checks, and electrical components should be left to pros.

Your HVAC system rarely fails out of nowhere—it gives signs. If you’ve noticed any of the ones we’ve listed, now’s the time to act. Catching problems early means lower costs, better comfort, and peace of mind.

👉 Schedule HVAC Service
👉 Join the Filter Saver Club

If your home has felt especially muggy lately, you’re not imagining it.

Many homeowners across the Midwest are noticing more humidity than usual this time of summer. Even with the air conditioner running, rooms still feel damp, and indoor air just doesn’t feel as comfortable as it should.

One surprising reason for this extra stickiness? A real weather effect known as “corn sweat.”

In this article, we’ll explain what corn sweat is, how it impacts the comfort of your home, and what steps you can take to maintain healthier, drier indoor air—all with the help of trusted solutions from Peterman Brothers.

What Is “Corn Sweat”?

“Corn sweat” is a nickname for a natural process known as transpiration. As corn plants grow, especially in July and August, they release large amounts of water vapor through their leaves into the air.

This is part of how the plant stays healthy and cools itself. But when you multiply this effect by the millions of acres of cornfields across the Midwest, it becomes a noticeable factor in our summer humidity.

In fact, one acre of mature corn can release up to 4,000 gallons of water per day into the atmosphere. With so much farmland in Indiana, Ohio, Illinois, and nearby states, this moisture builds up quickly and raises the humidity levels across our region.

How “Corn Sweat” Affects Summer Humidity

Why It Feels Hotter Than It Is

As the air becomes more saturated with moisture, your body finds it harder to cool itself. That’s why on a humid day, 80 degrees might feel closer to 90 or even 95.

This is especially common during what meteorologists call a “heat dome”—when high pressure traps hot, humid air close to the ground.

Corn sweat adds even more moisture to the mix, raising dew points by 5 to 10 degrees in some areas. The result? Hot, heavy air both outside and inside your home.

The Impact on Your Home and Air Conditioning System

Your air conditioning system is designed to do two important things:

  1. Lower the indoor temperature
  2. Remove excess moisture from the air

When outdoor humidity levels spike, your A/C system works much harder to handle the extra moisture. That can lead to:

Over time, this additional strain can increase energy bills and reduce the life of your equipment.

What You Can Do to Stay Comfortable

Everyday Tips for Reducing Indoor Humidity

Still feeling the effects of excess moisture? It may be time to explore professional solutions that work with your HVAC system.

How Peterman Brothers Can Help You Feel More Comfortable at Home

At Peterman Brothers, we’ve helped thousands of homeowners across Indiana and the Midwest take control of indoor humidity, especially during the peak summer months.

Here are a few solutions we offer:

Whole-Home Dehumidifiers

A whole-home dehumidifier works with your existing heating and cooling system to remove moisture throughout the entire house.

Benefits include:

Learn more about our Dehumidifier services.

High-Efficiency A/C Systems With Humidity Control

If your air conditioning unit is older or oversized, it may cool the air quickly but fail to remove enough moisture.

Today’s variable-speed systems operate at lower speeds for longer periods, allowing them to reduce humidity more effectively while saving on energy costs.

Learn more about our A/C Install Services.

Annual AC Tune-Ups & Moisture Assessments

A simple maintenance visit can make a big difference. We’ll clean your coils, check your system for proper refrigerant levels, and ensure everything is working efficiently.

Regular maintenance helps your system:

Learn more about our AC Maintenance services.

Frequently Asked Questions

Q: Is “corn sweat” really a major factor in humidity?
 Yes. In the Midwest, the combination of cornfields and warm temperatures can significantly increase local humidity levels.

Q: What should indoor humidity be?
 Between 40% and 50% is ideal. Higher than that can lead to discomfort and possible mold growth.

Q: Can a dehumidifier help reduce energy bills?
 Yes. By removing moisture from the air, your A/C doesn’t have to work as hard to keep you comfortable.

Q: How do I know if my home is too humid?
 Look for signs like foggy windows, musty smells, sticky air, or rooms that never seem to feel truly “cool.”

Peterman Brothers Customer Story: A/C Replacement

“This company is top notch! Finding a company that cares in today’s world is very hard. Every person that I have come into contact with from Peterman has been knowledgeable, kind, and made me feel important.

No one has been rushed while being here and they have made sure to explain things in terms I will understand. I bought a brand new air conditioning unit, called in a month later to ask a few questions, and someone was sent out to make sure everything was running perfect!

They go above and beyond to make sure you are happy. It’s unusual to find a company that is calling YOU!! Since they could not get anyone here for a week to replace the unit Jim brought me a window air unit to get me by on his day off! This shows they truly care about the customer.” 

— Stacey C., Indianapolis, IN

Ready to Feel Comfortable Again?

At Peterman Brothers, we know Midwest summers can be challenging. We’re here to help you stay comfortable with trusted HVAC services, humidity solutions, and expert advice.

Serving homeowners throughout Indiana, Kentucky, and Ohio. Find your nearest location.

Call Now | Book Online | Send a Message

It’s that time of year again. The temperature drops, you reach for the thermostat, and suddenly your home smells like… something’s burning? Don’t panic just yet—this is a common issue when turning on your furnace for the first time after months of disuse.

But when should you be concerned? Let’s break down why your furnace smells like that, what those smells mean, and when to call in a professional.

Why Does My Furnace Smell Like It’s Burning?

When you first turn on your furnace in the fall, that burning smell is usually nothing more than dust burning off. Over the months of warm weather, dust settles on your furnace’s internal components, and when you fire it up, that dust burns off. It’s similar to when you crank up the heat on your oven for the first time in a while—it smells strange but clears up quickly.

When it’s normal: If the smell fades after a few hours, you’re probably in the clear. That initial burst of heat simply burned off the dust, and there’s no need to worry.

When it’s a problem: If the smell lingers for more than a day or gets worse, there might be more going on. Dust burning off is harmless, but if that burning smell sticks around, it could indicate a deeper issue—time to look closer.

Other Common Furnace Smells: When Should You Be Worried?

Not every furnace smell is as innocent as dust burning off. Here are some other common furnace smells you might encounter, what they mean, and what to do about them.

Why Does My Furnace Smell Musty?

Ever turn on your furnace and get a whiff of something musty, like wet socks? This is usually caused by mold or mildew in the ductwork or air filters. Moisture can accumulate in these areas during the summer, especially if you run your air conditioner frequently.

When to worry: If that musty smell sticks around, it could mean mold is growing in your ducts or filters, which can affect the air quality in your home. Mold cannot be ignored—it can trigger allergies and other health issues.

What to do: Try replacing your furnace filters and running the system for a bit. If the smell doesn’t go away, you may need to have your ductwork inspected by a professional.

Why Does My Furnace Smell Like Burning Plastic?

This is one smell you don’t want to brush off. If you notice an electrical or metallic burning smell, it’s a red flag. This could mean that internal furnace components, like wires or motors, are overheating.

When to worry: Always. This type of smell can signal a serious electrical problem, and ignoring it could cause damage or, worse, a fire.

What to do: Turn off your furnace immediately. It’s crucial to get an HVAC professional out to inspect it as soon as possible.

Why Does My Furnace Smell Like Rotten Eggs or Sulfur?

If you ever smell rotten eggs or sulfur when your furnace runs, you’re probably dealing with a natural gas leak. And that’s an emergency situation that is more common than you think with around 69% of homes being heated with gas.

When to worry: Right now. Gas leaks are extremely dangerous and can lead to fires or explosions. Don’t try to fix this on your own.

What to do: Evacuate your home immediately. Call your gas company to report the leak, and then follow up with an HVAC professional for repairs once everything is safe.

Why Does My Oil Furnace Smell Like Smoke?

Got an oil furnace? If you’re smelling oil or smoke, something could be wrong with the burner. Blocked chimneys can also cause smoke smells, which might mean harmful gasses, like carbon monoxide, aren’t venting properly.

When to worry: A strong smoke or oil smell could mean something’s seriously wrong with your furnace. The risk of carbon monoxide poisoning is real here.

What to do: Open your windows to let fresh air in and turn off your furnace. Then, call an HVAC professional to have things checked out.

Troubleshooting Furnace Smells

Before hitting the panic button, there are a few things you can check to make sure your furnace is running smoothly.

  1. Turn off the furnace: If the smell is strong or persistent, turn off your furnace to avoid any potential danger.
  2. Check and replace air filters: Sometimes, funky smells are just from clogged or dirty filters. A quick swap might solve the issue.
    Inspect the area around the furnace: Dust, debris, or even small critters might be lingering in or around the unit. Give it a quick check and clean.
  3. Ensure proper ventilation: Your furnace needs good airflow to work efficiently. Make sure vents and chimneys are clear of obstructions.

 

When to Call an HVAC Professional for Furnace Smells

If your furnace smells like any of the above, or you’re not sure what you’re dealing with, it’s always better to be safe than sorry. Persistent smells, especially those that signal electrical issues or gas leaks, require immediate attention.

Routine maintenance from an HVAC professional can also help you avoid many of these smells altogether. Regular tune-ups ensure your furnace is clean, well-ventilated, and running safely.

Turning on your furnace for the first time in months can come with some surprises, especially in the smell department. While some odors, like burning dust, are totally normal, others can be signs of serious problems. Knowing the difference can save you a lot of stress—and keep your home safe.

Your furnace shouldn’t keep you guessing. If you notice something unusual, don’t hesitate to reach out. Stay safe, stay warm, and keep those smells in check! Now that your heat’s on you can check this out for more tips on preparing your home for winter.

Do you ever wake up with an itchy nose, watery eyes, and sneezing that won’t quit? Yeah, me too. If you’re anything like me, allergies are your worst enemy. You don’t even have to step outside to start sneezing—sometimes, it feels like your house is out to get you.

Allergies aren’t just a seasonal nuisance—they’re a year-round battle if your home isn’t set up to manage them. The good news is that practical, proven ways to manage them exist.

The Most Common Culprits Behind Your Allergies

When people think of allergens, they usually think of pollen outside. Still, the real troublemakers are typically right inside your home. Understanding these common indoor allergens is the first step in combating them.

Dust Mites: Where They Hide and How To Reduce Them

Dust mites are microscopic creatures that thrive in warm, humid environments, which makes your bed, carpets, and upholstered furniture their ideal habitats. These tiny pests are one of the most common triggers of allergies. They feed on the dead skin cells that we naturally shed, and their waste products are allergens that can cause symptoms such as sneezing, runny nose, itchy eyes, and even asthma attacks.

To give you an idea of how out-of-control dust mites can get: a typical used mattress can have anywhere from 100,000 to 10 million dust mites inside. And it’s not just your bed—carpets, curtains, and soft furnishings throughout your home can harbor them.

One of the best ways to reduce dust mites is to wash bedding weekly in hot water (at least 130°F) to kill them and their waste. Additionally, using dust-proof covers on mattresses and pillows can create a barrier between you and the mites.

Love Your Pets, Hate the Dander? Here’s How to Minimize Their Allergens

As much as we love our pets, they come with dander. Dander consists of tiny flecks of skin shed by cats, dogs, rodents, birds, and other animals with fur or feathers. These particles can float in the air for long periods and easily cling to surfaces.

Even if you’re not allergic to animals themselves, their dander can irritate your respiratory system, worsening symptoms for those with asthma or other breathing conditions. The proteins in pet saliva, urine, and feces can also contribute to allergic reactions.

Regular grooming and bathing can reduce the amount of dander pets shed. To minimize exposure, it is also a good idea to keep pets out of bedrooms and off furniture.

Mold Management for Healthier Living

Mold is a type of fungus that grows in damp, humid conditions. It can be found in any home area where moisture is present for an extended time. Mold reproduces by releasing spores into the air, which can be inhaled and cause allergic reactions in sensitive individuals.

Mold allergies can lead to symptoms such as coughing, wheezing, nasal congestion, and eye irritation. In more severe cases, exposure can trigger asthma attacks or lead to respiratory infections, especially in people with compromised immune systems.

Controlling moisture levels is important to prevent its growth. This means fixing leaks promptly, using exhaust fans in bathrooms and kitchens, and running a dehumidifier in damp areas like basements. Regular cleaning with mold-killing products can also help keep mold growth under control.

If you think you have a significant mold problem in your home, it’s crucial to contact a professional mold remediation service immediately to assess the situation.

Large-scale mold growth can pose serious health risks and requires specialized removal techniques to ensure it’s safely and thoroughly eliminated.

Shield Your Home from Pollen

Pollen from trees, grasses, and weeds can trigger sneezing, runny nose, itchy eyes, and throat irritation. Pollen can easily travel into your home in clothes, shoes, or even through open windows and doors. Once inside, it can settle on surfaces and even circulate through your HVAC system, prolonging symptoms.

To minimize indoor pollen, change your clothes and shower after spending time outdoors, keep windows closed during high pollen seasons, and regularly clean floors and surfaces where pollen may settle.

First Steps to Reduce Indoor Allergens

Now that you know what you’re up against, let’s discuss reducing these allergens and creating a more comfortable living environment. These strategies aren’t just about making your home cleaner—they’re about improving your air.

Effective Cleaning Habits to Keep Allergies at Bay

Vacuuming and dusting are essential in maintaining a clean home. Still, they’re only effective if you’re using the right tools. Regular vacuums can stir up dust and allergens, sending them back into the air you breathe. A vacuum with a HEPA (High-Efficiency Particulate Air) filter is essential.

This level of filtration is especially important for allergy sufferers because it prevents the allergens from being recirculated into the air during cleaning.

When dusting, use a damp or microfiber cloth to capture dust rather than spreading it around. Also, remember to clean areas that often go overlooked, such as ceiling fans, light fixtures, and behind furniture—dust and allergens love to accumulate in these hidden spots.

Wearing a mask can also help reduce inhalation of the allergens that may get stirred up while cleaning.

Humidity Control: An Often Overlooked Powerhouse in Reducing Allergens

Humidity levels play an important role in allergens in your home. Too much humidity can lead to mold growth, while too little can cause dust mites to thrive.

A whole-home humidifier and dehumidifier can help maintain optimal humidity levels. During the winter months, when indoor air tends to be dry, a humidifier adds moisture to the air, making it more comfortable to breathe and reducing the likelihood of dry skin and irritated nasal passages.

Conversely, when humidity levels can spike during the warmer months, a dehumidifier removes excess moisture from the air, immensely reducing mold growth and dust mite populations.

By keeping your home’s humidity levels between 30% and 50%, you create an environment that’s less conducive to allergens and more comfortable for you and your family.

Healthy HVAC System = Heathier Indoor Air

If you’re serious about controlling allergens in your home, your HVAC system must be up to the task. Your heating, ventilation, and air conditioning system is the lungs of your home, and keeping it well-maintained is critical to managing air quality.

Clean Air Starts with Regular Filter Changes

Your filters trap dust, pollen, dander, and other particles as air circulates through your system. However, if they’re too dirty or clogged, they won’t filter as well and cause strain on your system, making it run harder than it should have to.

Standard filters should be changed every 1 to 3 months, depending on usage and the presence of pets or allergy sufferers. It’s also a good idea to make sure your home is using a HEPA-quality filter.

HEPA filters are designed to capture 99.97% of particles as small as 0.3 microns, making them the gold standard in air filtration.

Are Allergens Hiding in Your Ducts?

Your HVAC ducts are also important in maintaining your home’s air quality. Over time, dust, dirt, mold spores, and other allergens can gather in the ductwork, which can then be circulated throughout your home every time your system runs.

Regular duct cleanings are vital to remove these hidden allergens. By clearing out the buildup, you not only improve the efficiency of your HVAC system but can also greatly reduce the amount of allergens that can circulate through your home.

The Best in Whole Home Air Purifying Systems

If one tool in an allergy-fighting arsenal stands out, it’s the Reme Halo® air purifier. Installed directly into your HVAC system, it’s more than a conventional ultraviolet lamp filter because it actively improves the air quality in your home. Most air purification systems need to be more active or effective at meaningfully reducing pollutants.

How the Reme Halo® Works

Unlike standalone units that rely solely on air passing through them to destroy particles with its ultraviolet light, the Halo® creates ionized Hydrogen Peroxide molecules and sends them throughout your home. These molecules seek out and neutralize airborne contaminants, including allergens, bacteria, viruses, and even odors, wherever they are in your home.

The ionized particles attach themselves to dust, dander, and other airborne particles, making them larger and easier for your HVAC filters to capture. This process dramatically reduces the number of allergens in the air and improves the overall efficiency of your HVAC system. Studies have shown that the Reme Halo® can reduce airborne bacteria, viruses, and mold by up to 99%.

It also helps homeowners with pets manage pet odors and dander, making it easier to maintain a fresh-smelling and allergen-free environment.

Taking Charge of Your Allergies

Implementing the plans and solutions we’ve discussed—regular cleaning with HEPA filters, maintaining balanced humidity, using high-efficiency HVAC filters, and investing in advanced technologies like the Reme Halo —can make a huge difference. 

Work with a trusted HVAC professional to assess your home’s air quality and identify areas for improvement. Then, develop a plan that meets your specific needs and budget.

With over 30 years of experience in the HVAC industry, our family has seen firsthand how these solutions can transform a home’s air quality and improve the lives of those living there. Whether you need advice on upgrading your HVAC system, installing a Reme Halo, or exploring other options, we’re here to guide you.

Let’s make your home the comfortable, allergen-free space it should be.

As a homeowner, your furnace, much like any other piece of machinery, ages over time, presenting challenges that can have big consequences for you, which leads to you asking, should I replace my furnace?
In this blog, we highlight the importance of recognizing the potential risks of aging systems and emphasize your need to be proactive. Your home’s comfort, safety, and financial well-being are at stake, making it essential to make informed decisions regarding the aging heart of your heating system.

How Old is Too Old for a Furnace?

The age at which a furnace potentially becomes a liability varies, but a good rule of thumb is the 15-year mark. Once a furnace blows out its candles on its 15th birthday, significant problems are much more likely to occur. However, the actual lifespan of a furnace depends on factors such as maintenance history, usage patterns, and the quality of the original installation.
Now, let’s hop into the six reasons why keeping an aging furnace poses risks that every homeowner should know.

1-Older Furnaces Lack Energy Efficiency

One of the biggest drawbacks of an aging furnace is its energy efficiency. According to the U.S. Department of Energy, furnaces 15 years or older can have an efficiency rating as low as 56%, meaning nearly half of their energy is wasted. In stark contrast, modern, high-efficiency furnaces boast 90% or more efficiency ratings.
High efficiency furnaces can translate to savings on your utility bills—an average of 20% to 30% less energy consumption than their outdated counterparts. Upgrading to a more efficient system aligns with environmental responsibility and can put some savings back in your pocket.

2-Potential Safety Hazards of an Older Furnace

Carbon Monoxide Leaks in Your Furnace

Aging furnaces increase the risk of dangerous carbon monoxide leaks. Undetected, this colorless, odorless gas can pose serious health risks. As disclosed by the Centers for Disease Control and Prevention (CDC), more than 100,000 people in the U.S. visit the ER each year due to carbon monoxide poisoning.
As the furnace ages, components like the heat exchanger may develop cracks, allowing this colorless, odorless gas to escape into your home. Additionally, corrosion or rusting of the heat exchanger over time can compromise its integrity, leading to leaks.
Apart from a cracked heat exchanger, carbon monoxide leaks can also result from issues such as a malfunctioning flue pipe or a blocked vent. Any blockages or damage in the venting system can disrupt the proper ventilation of combustion gasses, releasing carbon monoxide into the living space.

Possible Fire Hazards of an Older Furnace

Some sources will tell you that heating equipment is a leading cause of home fires, but we need to clarify something. That particular stat is related to portable and stationary space heaters, which you certainly should be cautious about using and try not to use them if possible. With that being said, here are potential gas furnace fire hazards.

3-Escalating Furnace Repair Costs

Beyond safety concerns, the financial impact of maintaining an aging furnace can be a big reason to consider replacing your furnace. As furnaces age, they become more prone to breakdowns and malfunctions, leading to a steady increase in repair costs and increased frequency of these costly repairs. Components of old furnaces such as the blower motor, igniter, and thermostat may wear out or fail, requiring frequent replacements.
Less talked about is the scarcity of replacement furnace parts for older models which can also contribute to an even higher repair expense if even possible depending on the age of the unit. What starts as a minor repair can quickly turn into a series of costly interventions, ultimately outweighing the upfront investment of a new, more efficient furnace.

4-Missing Out on Newer Furnace Technology

Another inconvenience of not replacing an aging furnace is using outdated technology. Older furnaces lack the advanced features and energy-saving capabilities found in modern models—this technological lag results in less precise temperature control, inefficient heat distribution, and higher energy consumption. Outdated furnaces may also lack compatibility with smart thermostats, which offer convenient and customizable heating and cooling system options that help you increase your comfort in your home!

Examples of Newer HVAC Features and Technologies

5-Potential Environmental Impact of an Older Furnace

Beyond the immediate concerns of safety and finances, not replacing an aging furnace can also have an environmental impact. Older furnaces often lack the energy-efficient features and green technologies incorporated into modern models, resulting in higher greenhouse gas emissions and increased energy consumption. Here’s a deeper look into the environmental consequences:

6-Diminished Resale Value

An aging furnace, laden with potential safety hazards and lacking energy-efficient features, can potentially diminish the resale value of your home. Prospective buyers often view outdated heating and cooling systems as a possible financial burden and a reason for negotiation.

Here’s how keeping an aging furnace can impact the resale value of your home:

Warning Signs Your Furnace May Be Ready To Be Replaced

We’ve covered the potential risks of keeping an aging furnace, but how do you know if your system is in the camp of being old but still runs excellent or is on its last legs? Here are some things to monitor:

Importance of a Professional Furnace Inspection

While it’s crucial to be aware of warning signs and potential issues with your aging furnace, the best solution lies in having a professional HVAC technician take a look. A thorough inspection by a qualified professional can comprehensively assess your old furnace’s condition, identifying issues that may not be immediately apparent.
If you’re in our service area and think it might be time to replace your furnace, please reach out, and we’ll schedule a free appointment to look at your aging furnace. Our team of qualified technicians will assess its condition, discuss findings with you, and provide recommendations tailored to your home’s heating needs.
Even if you’re not in our service area, we strongly urge you to contact your local HVAC professional. Regular inspections are essential for the ongoing health and performance of your furnace. A local technician can provide the same level of expertise, ensuring that your heating system is in top condition.
Remember, a professional inspection is not just about addressing current issues but about protecting your home and wallet against potential problems in the future. Don’t wait until a minor glitch turns into a major headache.

Components of Your Duct System

Your duct system is composed of various parts that work together to ensure that it properly distributes air. Here are the various parts of your duct system.

Ducts

The ducts are pipes and trunks that form the main passage for cooled or heated air to circulate throughout your home. They are a network of duct pipes that flow from the duct trunk to the various rooms in your home. The main duct from the furnace is called the duct trunk, and it’s usually made of steel. Others are made of aluminum, which is flexible and used where there are a lot of corners.

Plenum

The plenum is attached to the ducts and stores air for your HVAC system. Typically, your ductwork has two plenums filled with heated or cool air and then released into the air ducts. As the air from one plenum enters the ducts, the existing air is forced into another plenum and released outside.

Duct Transitions

Duct transitions connect the pipes and trunks. They help to connect the ducts to fit the specific shape of your home. Specialized connectors and duct transitions are attached to form pathways for conditioned air to circulate throughout your home.

Refrigerant Lines

Refrigerant lines transport the refrigerant to the compressors, which enable your HVAC system to cool or heat the air.

The Role of Your Ductwork

The ducts play a vital role in your HVAC system, even though most people overlook them. They ensure that your home has an even distribution of temperature. When you have a proper air duct design, the ducts the right amount of heated or cool air to maintain your comfort. To ensure that you keep the drop in pressure within the manufacturer’s specifications, your ducts should be sized appropriately in proportion to your house. Sealing your ducts maintains proper airflow and ensures that air from the outdoors does not enter your home.

Your ducts maintain neutral pressure in your house by balancing the supply and return of airflow. They also reduce gains and losses in air temperature. This helps to control the variations in temperature between the air handler and supply and return registers. When the temperature changes are too low or too high, your ducts will not be efficient, increasing energy bills.

Common Duct Work Problems

Your ductwork is affected by various problems that may lower its efficiency. They can also shorten the service lifespan of your ducts and lead to high energy bills. Here are the common ductwork problems.

Leaking Ductwork

Your home may lose about 20-40% of conditioned air through leaking ductwork. This makes your HVAC system work harder to cool or heat your home. Leakages can also allow indoor air contaminants to enter your home lowering your indoor air quality. If you notice you have leaking ducts, you can contact a qualified HVAC company like Peterman Brothers to seal your ducts. We are highly experienced and will fix your ducts to improve efficiency.

Improperly Designed Duct Work

If your ductwork is not designed correctly, it cannot circulate air effectively or efficiently throughout your house. Ensure that your ductwork is properly designed and installed to operate efficiently.

Dirty Air Ducts

Dirty air ducts can lower your indoor air quality affecting your health and comfort. Getting your ducts professionally cleaned will help to remove air pollutants and improve your home comfort.

Damaged Ducts

Your ducts can get kinked, twisted, torn, or crushed due to pressure. This may constrict airflow, which can lead to high energy bills. Proper duct repair will restore efficiency and proper airflow.

Signs That You Need to Replace Your Ducts

Typically, your ductwork can last between 10 to 15 years before you have to replace it. After this period, they face issues that require frequent repairs. Replacing your ductwork can increase the efficiency of your ducts and prevent costly repairs. Here are signs that you need to replace your ducts.

High Utility Bills

If you notice your energy bills are rising significantly, you could be losing energy through ductwork leakage. Some air may escape from your ducts, but when it’s over 20%, you start noticing changes in your energy bills. When a lot of air is escaping, your HVAC system has to overwork to cool or heat your home. This also increases wear and tear on your system. Replacing your energy bills can lower your energy bills and restore efficiency.

Poor Indoor Air Quality

When your ductwork has holes, air contaminants such as dirt and biological pollutants can enter your indoor air. This can affect your family’s health by triggering allergies and asthma attacks. You may start experiencing irritated nose, and eyes among other health problems. Peterman Brothers provide quality ductwork replacement in Indianapolis, IN. We will work to restore your health and indoor air quality. Our technicians are highly qualified and experienced and guarantee complete satisfaction.

Uneven Cooling and Heating

If you notice some rooms in your home are colder or warmer than others, your ductwork may need replacement. You can use an indoor thermometer to check for any inconsistencies in your room temperatures. When your ducts have leaks, some rooms do not receive sufficient cool or warm air leading to cold and hot spots.

Strange Noises

Your HVAC system usually produces low noises when it’s operational. However, if you hear strange and loud noises coming from your system, your ductwork might be the problem. The noise is produced when your ducts are vibrating too much when circulating conditioned air. The ducts are connected via fiberglass or plastic joints that may produce noise when they become loose or damaged.

Presence of Mold and Dust in Your Home

Dust can easily make its way into your home. However, if the amount of dust in your home is too high, your ductwork might cause the problem. Leaks in your ductwork allow dust to enter your home through the vents.

Similarly, if your house has uneven heating and cooling, mold can grow on parts of your home. You may notice a musty smell that indicates the presence of mold. This usually happens when warm air travels through cold ducts, and it condenses. This creates moisture encourages the growth of mold and mildew. Mold can destroy your furniture and cause health problems.

Faulty ductwork can also lead to pest infestation in your home. Gaps and holes in your duct can allow pests like rodents and bugs to enter your indoor air. The pests can produce unpleasant smells, noises or spread bacteria in your home. If you notice signs of molds, you need to replace your duct.

Peterman Brothers offer quality heating and air conditioning services in Indianapolis. We have been in business since 1986 and provide expert workmanship. Contact Peterman Brothers today for more information!

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