Why a Gas Furnace Dries Out Your Houses Air and How to Fix It

There’s a reason why air seems drier during cold weather than when it’s hotter. That’s due to the fact warmer air retains extra moisture, or humidity, than colder air. 

The same is true within your Jacksonville residence. Starting your gas furnace makes your house feel warmer but can also dry out the indoor air. Dry air can carry a whole host of ailments, such as dry skin, cracked lips and make you more exposed to getting sick. 

Here’s why your gas furnace dries out your home’s air and what you can do to counter it. 

Your Furnace’s Combustion Procedures are Part of the Issue 

The fuel your furnace uses isn’t the culprit responsible for making your home’s air seem dry. Rather, it’s the way it combusts. 

There are two different kinds of gas furnaces, standard and high efficiency. With an older standard furnace, you can see light from the burners when it’s on. A newer, high-efficiency furnace is totally sealed. 

A standard furnace, also known as an atmosphere furnace, draws air from inside your residence to function. Because the furnace consistently uses air to burn, it will also use cold, dry air from outdoors, which in turn lowers your home’s humidity. 

High-efficiency furnaces, also known as a sealed combustion furnace, are ideal for keeping your humidity steady. They draw all their combustion air from your home’s exterior, but it stays trapped in the sealed furnace. As an added bonus, they keep your residence more warm while consuming less energy. Switching to an ENERGY STAR® furnace from an old furnace can save you as much as 40% on heating costs, according to Lennox®. 

In addition to combustion, cold air also naturally flows into your residence during cold weather. Lower humidity means the air will rob moisture fast from your skin, lips, nose and throat. It also contributes to static electricity. 

How to Stabilize Humidity in Your House 

Using a humidifier. While a portable humidifier can only make one room comfy at a time, a whole-house humidifier will spread that comfort around your residence. 

These are just a small number of humidifier benefits you’ll acquire when you switch to a whole-home system. 

Improved Health During Cold and Flu Season 

It’s typical that winter is the worst time for colds, flu and other sicknesses. That’s since you’re more apt to become sick when your nose and throat are dry. Under particular airflow conditions, air at the correct humidity level can also restrict the spread of some viruses. In addition, it can weaken year-round allergy symptoms. 

Eases Dry Skin 

If you have consistent dry skin or eczema, you understand just how uncomfortable those conditions make you during winter. Getting a whole-house humidifier will help your skin keep more moisture. 

Enhanced Sleep 

Maintaining your bedroom at the preferred temperature and humidity level will keep you more comfortable at night. It can also alleviate loud snoring, since your throat and nose will be better hydrated. 

Defends the Wood in Your House 

Cabinets, flooring, furniture and most anything in your residence that’s wood is affected when humidity is too low. This is due to the fact dry air draws moisture from the wood and causes it to split. Having your home’s humidity at the correct level will keep your home’s furnishings looking their best. 

Little Maintenance Needed 

Between steady filter changes and continual refilling, portable humidifiers demand a lot of upkeep. A whole-house humidifier only needs servicing about once a year, which can be done at the same time as your furnace tune-up. 

A steam humidifier has the lowest amount of maintenance since it doesn’t use a pad. It retains water in a canister and boils it into steam that gets transported through your ductwork. Because it’s independently powered, it can be in use when the furnace isn’t running. 

Request Your Free Home Comfort Consultation Today 

If your home’s air feels less than pleasant during cold weather, Air Engineers Service Experts can help. Call us at 904-450-5672 to request a free home comfort consultation. There’s no pressure, just free Expert suggestions on how you can maintain your home’s humidity at just the correct level. And, like our other services, our work is protected by our legendary 100% Satisfaction Guarantee for one year.* 


*Not applicable to the Advantage Program. See your signed Advantage Program Agreement for full details and exclusions. 100% Satisfaction Guarantee is subject to certain restrictions and limitations as set forth in the applicable Terms and Conditions. 

Savings For You

See All Offers Here >

$50 OFF HVAC Tune-up Special

There’s no reason to skip your seasonal maintenance that saves energy and helps ensure your air conditioner and heater will work reliably all season long.

  • Regularly $129, now only $79
  • Save up to 30% on energy bills
  • Written Expert Service Guarantee

$50 OFF Any Repair

  • Save $50 on a Paid Service
  • Written 100% Satisfaction Guarantee
  • Plus, ask how to save an additional 15% and waive your trip charge!

© 2023 Service Experts, Service Experts Heating & Air Conditioning, and the Service Experts logo and design are registered trademarks of Service Experts LLC and used under license by SE Canada Inc. All Rights Reserved. *Not applicable to the Advantage Program. See your signed Advantage Program Agreement for full details and exclusions. 100% Satisfaction Guarantee is subject to certain restrictions and limitations as set forth in the applicable Terms and Conditions.