Does it seem like you're not getting enough no matter how much you crank up your thermostat? There's a good chance you could be dealing with an issue preventing your furnace from producing the proper amount of heat for your home. There are three common issues that could cause a low-heat condition. The following takes a quick look at these issues and how you can resolve them.
Dirty Furnace Air Filter
Air filters are essential for trapping dust, debris and other airborne particles before they enter the furnace. Once a furnace filter becomes completely clogged with debris, the resulting blockage can easily restrict airflow into the combustion chamber, resulting in a lack of adequate heat.
For this reason, it's essential to replace the air filter with a clean example at least once every three months. This can be stepped up to a monthly process if you suffer from allergies and want to improve your home's indoor air quality.
Combustion Airflow Obstructions
Your furnace relies on a constant source of fresh air in order to operate properly. Without this combustion air, your furnace may not be able to produce as much heat as it normally would. If this is the case for your furnace, here are a few things you should do to resolve the issue:
- Start by removing as many potential obstructions from your furnace as possible. Use a wet/dry shop vacuum to remove dust and small debris from around the furnace.
- Have your HVAC technician conduct a smoke test to check for signs of backdrafting, which can occur if there isn't enough air available and your home is under negative air pressure.
- If your furnace is located in a small, enclosed space, you may need to create an opening to an outdoor source of air. In many cases, this can be done with a crude air duct running from the outside wall closest to the furnace to the floor.
Dirty Gas Burners
It's not unusual for soot and debris to build up on the furnace's gas burners over time. However, this build-up can disrupt gas and air flow, resulting in a dirtier-burning flame and lower furnace temperatures. To ensure a clean flame, you'll want to remove superficial soot and debris from the burner with a stiff-bristled brush or compressed air.
If the burner has visible rust and corrosion or has indications of misalignment, you'll need to have your HVAC technician check the burner and determine if it needs to be readjusted or replaced. To learn more, contact companies like Custom Comfort.