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Can Furnaces Run Without a Filter?

February 6th, 2020 by cverdone

Furnace Filters
We have all ignored HVAC repairs, replacements, and maintenance at least once in our life. You may realize that you haven’t checked your furnace’s filter in a while. When you finally do, it’s too damaged. Now, you can’t install it back. So, can your heating unit run without a filter?
Your furnace can run without a filter. When you do, you risk damaging your heating system and putting your health at risk. When air goes into the system, it passes through the filter. It removes dirt, allergens, and dust from the air. The clean and purified air is then distributed to various rooms in the building. Although you can run your HVAC without a filter, HVAC professionals discourage it. The answer to this question, according to the experts, is a no. The results make running your furnace without a filter not worth it.

Reasons to avoid running your unit without a filter

Thanks to air filters, better air quality is now a reality. With a clogged or missing air filter, you could cause the following issues.

  • Higher energy bills from overworking the system.
  • Poor and inconsistent airflow.
  • Low temperatures.
  • Overheating furnace.
  • Wearing out of the system.
  • Contaminated ducts.
  • Health issues from poor air quality.

What if you run your HVAC without a filter?

Accidents happen, and you will find yourself between a rock and a hard place. What if something happens in the middle of the night and you have to remove the air filter for a day or two? It’s not going to cause any major issues to your system. Replace the filter as soon as possible to avoid contaminants in your home or office space. Also, your furnace will collect a lot of contaminants without a filter. This means more maintenance and repair services.

How often should you replace your air filter?

We recommend inspecting your filter every four weeks to make sure it’s clean. The more you use the system, the higher the frequency of replacement.
Even though your HVAC system will work without an air filter, it won’t be as efficient. If your air filter needs a replacement, call Thornton Heating and Cooling. We are experts at diagnosing and creating solutions for HVAC issues.