Why a Gas Furnace Dries Out Your Homes Air and How to Solve It

There’s a reason why air feels drier during colder months than when it’s warmer. That’s because warmer air retains extra moisture, or humidity, than colder air.

The same is true for your the U.S. house. Turning on your gas furnace makes your home 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 likely to get sick.

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

Your Furnace’s Combustion Process is a Portion of the Trouble

The fuel your furnace consumes isn’t the source responsible for making your residence’s air seem dry. Rather, it’s the combustion procedures.

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

A standard furnace, also termed an atmosphere furnace, pulls air from inside your residence to work. Because the furnace consistently needs air to burn, it will also use cold, dry air from outdoors, which in turn reduces your house’s humidity.

High-efficiency furnaces, also known as a sealed combustion furnace, are best for keeping your humidity even. They take all their combustion air from outdoors, but it stays locked in the sealed furnace. As an added bonus, they keep your home more cozy while using 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®.

Besides combustion, cold air also naturally seeps into your house during the winter. Reduced humidity means the air will snatch moisture rapidly from your skin, lips, nose and throat. It also causes static electricity.

How to Even Out Humidity in Your Home

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

These are just a few humidifier benefits you’ll acquire when you put in a whole-home system.

Better Health During Cold and Flu Season

It’s typical that cooler weather is the worst time for colds, flu and other ailments. That’s since you’re more apt to become sick when your nose and throat are dry. Under specific airflow conditions, air at the right humidity level may also slow the spread of some viruses. Additionally, it can alleviate year-round allergy symptoms.

Eases Dry Skin

If you have constantly dry skin or eczema, you know just how uncomfortable those conditions are during winter. Adding a whole-house humidifier will help your skin keep more moisture.

Better Sleep

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

Protects the Wood in Your Home

Cabinets, flooring, furniture and basically anything in your residence that’s wood doesn’t like it when humidity is too low. This is due to the fact dry air draws moisture from the wood and causes it to fracture. Keeping your home’s humidity at the right level will keep your home’s furnishings looking their best.

Little Maintenance Needed

Between steady filter changes and continuous refilling, portable humidifiers require a lot of upkeep. A whole-house humidifier only needs servicing about once a year, which can be completed along with your furnace tune-up.

A steam humidifier has the least amount of maintenance since it doesn’t use a pad. It holds water in a canister and boils it into steam that gets moved through your ductwork. Since it’s independently powered, it can run when the furnace isn’t on.

Request Your Free Home Comfort Consultation Today

If your home’s air feels less than cozy during colder weather, Service Experts Heating, Air Conditioning & Plumbing can help. Call us at 866-397-3787 to arrange a free home comfort consultation. There’s no pressure, just free Expert recommendations on how you can balance your home’s humidity at just the proper level. And, like our other services, our work is backed by our famous 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.

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