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Meyers Heating & Air Conditioning Blog

Furnace Only Blowing Warm Air? Here’s What to Do

You want your furnace to keep your house warm on the coldest days of the year. But did you know that your furnace should actually blow hot air and not warm air? If you feel lukewarm air coming from the air vents while your furnace is on, that is a problem.

It may be time to invest in furnace repair. But first, there are a couple of things that you can check. There’s always a chance that there’s an easy fix to help your furnace blow hot air once again. Keep reading to learn more about why your furnace may not be blowing enough hot air into your home.

Thermostat Settings

Your first stop in investigating lukewarm furnace air is the thermostat. There’s always a chance that your thermostat got bumped and set to cool instead of heat. If this is the case, it’s an easy fix.

Change the heat settings and see if you notice a difference. If nothing improves, there’s a chance that your thermostat is to blame for the problem. If it isn’t calibrated correctly, it won’t communicate with your furnace as it should.

You could even try increasing the temperature a degree or two to see if that improves the temperature of the air coming from your furnace. Remember, your furnace is supposed to be blowing hot air because that air has to mix with the cooler air in your home to warm it up. If the air is only lukewarm, it’s not doing enough to heat up your home.

Air Filter

There is also a chance that your air filter is dirty and needs to be changed. If your air filter gets clogged with dust and dirt, there may not be enough airflow coming into your furnace to begin with. Without adequate airflow, there’s not even air available to heat and blow into your home. Change the air filter and see if you notice a difference. If not, there may be a larger problem that needs addressing.

Check the Air Vents 

You want to make sure that all of the vents in your home are positioned to be open. Many homeowners try to close certain air vents around the home to redirect airflow, but it doesn’t always work as you expect it to. Instead, you’re just trapping heated air in the ductwork so that it has nowhere to go. This doesn’t result in some rooms getting warmer. Instead, you risk having your furnace work harder to try and heat your home up.

Open all of the vents in your home and see if there is a difference in air temperature. Keep in mind that you want to check multiple rooms in your home. If you notice that one air vent is blowing hot while another air vent is blowing lukewarm, you may have a larger problem that one of our technicians needs to check out. Your furnace should provide heat consistently across your entire home. No room should be significantly hotter or cooler than others. 

Contact Meyers Heating & Air Conditioning today to schedule an appointment with our professionals.

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