“Winter is coming” – but fret not, you won’t have to prepare for the white walkers. However, you DO have to switch to furnace from the air conditioner to ensure indoor comfort in coming winter. But before switching to the furnace, you’ll have to prepare your furnace for winter. Otherwise, your furnace may not function properly, and you’ll be suffering in the winter. 

In this article, I’ll talk about a few ways to prepare your furnace for winter. 


6 Ways to Prepare Your Furnace for Winter

1.   Change Furnace Air Filter

The first thing you’ll have to do is to change the furnace air filter. If you haven’t changed your HVAC air filter for months, you should change it as soon as possible. Again, if you’re using an electrostatic filter, you can wash your furnace filter and reuse it.

As the furnace filter blocks all sorts of particles, it gets clogged quickly. That’s why you’ll have to change the air filter every 2 to 3 months. It’s recommended that you change the HVAC air filter at the start of each season. That’s how your indoor air quality will be clean, and you’ll be able to run your furnace smoothly.

2.   Check the Thermostat

In winter, you’ll have to use your thermostat more than ever. That’s why you’ll have to check whether your furnace thermostat is working or not.

Turn on the furnace thermostat and set the temperature above the room temperature. After turning on the thermostat, you’ll hear a hit kick from the furnace. If you don’t hear any hit kick from the furnace then remove the cover and check the wires of the furnace.

While checking if you notice that the wires are connected properly then check the main power source. If the main power is functioning properly, there’s a high chance that your furnace has internal problems. In this case, you’ll have to call an HVAC professional and repair your furnace as soon as possible.

3.   Cover the Air Conditioner Condenser

If you’re using a heat pump then you won’t have to cover the condenser. But if you’re using a separate furnace for winter then your air conditioner will be idle in winter. As a result, dust and other particles will accumulate in your air conditioner. But dust and debris decrease the performance of the air conditioner. That’s why you’ll have to cover the condenser of your air conditioner. Thus, no dust and debris won’t be able to accumulate in your air conditioner, and you’ll be able to use your air conditioner right after winter without any heavy maintenance.

4.   Test Your Furnace Igniter Switch

If you have an old furnace system, you’ll have to relight the furnace igniter switch. But you’ll find an electric ignitor in the modern furnaces. Turn on the ignitor and see whether it’s working or not. If the igniter switch isn’t working then reset the whole furnace igniter switch button. If this reset trick doesn’t work, check the circuit breaker.

Still not working? Then there is a high chance that there’s a problem in your furnace, and you should call an HVAC professional as soon as possible.

5.   Clean the Furnace Heat Exchanger

If you’re using a furnace, there’s a high chance that there’ll be dust and debris in the heat exchanger. That’s why before the start of the winter, you’ll have to clean the heat exchanger of your furnace. For cleaning, you should call an HVAC professional. Besides, when you call an HVAC professional, they will check your furnace thoroughly. If they find any cracks in your furnace then they will repair it.

Furnace cracks are very dangerous, and if you don’t repair it, you’ll be exposed to carbon monoxide that is very dangerous for your health. That’s why you should call an HVAC professional to clean your furnace heat exchanger.

6.   Replace your Filter and Nozzle if You have Oil-Powered Furnace

If you’re using an oil-powered furnace system, you’ll have to clean the oil filter and nozzle of your furnace. Many homeowners forget this step and start using their furnace without cleaning the furnace oil filter and nozzle. As a result, the overall performance of their furnace decreases, and they don’t get the desired output from their furnace.




These are the 6 ways to prepare your furnace for winter. The best way to prepare your furnace is by doing regular HVAC maintenance checkups. Call your nearby HVAC professionals in Dallas and get the best output from your HVAC system.



See the summary of this content in this infographic – 6 Ways to Prepare Furnace for Winter [Infographic]

6 Ways to Prepare Furnace for Winter


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