Why Your Gas Furnace Makes Dry Air in Your Home and How to Fix It

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

The same is true inside your Tempe house. Turning on your gas furnace makes your house feel warmer but can also dry out the indoor air. Dry air can transport 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 house’s air and what you can do to resolve it.

Your Furnace’s Combustion Steps are a share the Trouble

The fuel your furnace consumes isn’t the culprit responsible for making your house’s air appear dry. Rather, it’s the combustion process.

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

A standard furnace, also called an atmosphere furnace, takes air from inside your residence to combust. Because the furnace consistently needs air to burn, it will also pull cold, dry air from outdoors, which in turn affects your house’s humidity.

High-efficiency furnaces, also known as a sealed combustion furnace, are best for keeping your humidity steady. They pull all their combustion air from outside, but it stays trapped in the sealed furnace. As another advantage, they keep your home more comfortable while using less energy. Switching to an ENERGY STAR® furnace from an old furnace might save you as much as 40% on heating costs, according to Lennox®.

Besides combustion, cold air also naturally seeps into your house during cold weather. Lower humidity means the air will steal moisture fast from your skin, lips, nose and throat. It also causes static electricity.

How to Stabilize Humidity in Your House

Using a humidifier is the better way to control your residence’s humidity when it’s cold. You have two options, a portable humidifier or a whole-house humidifier. While a portable humidifier can only make one room comfortable at a time, a whole-house humidifier will transport that comfort across your residence.

These are just a couple humidifier benefits you’ll receive when you switch to a whole-home system.

Better Health During Cold and Flu Season

It’s common that winter is the worst time for colds, flu and other illnesses. That’s due to the fact you’re more likely to get sick when your nose and throat are dry. Under specific airflow conditions, air at the correct humidity level might also resist the spread of some viruses. In addition, it can combat year-round allergy symptoms.

Soothes Dry Skin

If you have chronically dry skin or eczema, you know just how aggravating those conditions are during winter. Installing a whole-house humidifier will help your skin retain more moisture.

Better Sleep

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

Protects the Wood in Your House

Cabinets, flooring, furniture and most anything in your house that’s wood suffers when humidity is too low. This is because of the fact dry air absorbs moisture from the wood and causes it to crack. Keeping your residence’s humidity at the proper level will keep your home’s furnishings looking their best.

Little Maintenance Needed

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

A steam humidifier has the least amount of maintenance since it doesn’t need a pad. It stores water in a canister and boils it into steam that gets distributed through your ductwork. Because it’s independently powered, it can run when the furnace isn’t running.

Schedule Your Free Home Comfort Consultation Right Away

If your house’s air feels less than cozy during cold weather, Bob Brown Service Experts can help. Call us at 623-243-4517 to request a free home comfort consultation. There’s no pressure, just free Expert recommendations on how you can maintain your home’s humidity at just the right 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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