6 Common Furnace Cleaning Myths

A more expensive furnace burns fuel more efficiently and lasts longer with proper maintenance; without regular cleaning and checks, it will eventually break down.

The modern furnace is a marvel of high-tech efficiency but is also one of the least understood appliances in the home. Most people believe the furnace operates automatically, turning on and off as needed and lasting indefinitely. However, like a car or any other appliance, regular maintenance checks are required to ensure everything is clean and functioning correctly. A number of myths about furnace cleaning have led some homeowners to make poor decisions regarding their furnace maintenance. This post will address six of these myths.

Furnace Cleaning Demystified

Despite not being a typical subject of myths and urban legends, furnace cleaning has attracted its share. Here are six of the most prevalent furnace cleaning myths and the truths that debunk them.

Furnace cleaning is a waste of money

Any mechanical device that works hard needs proper maintenance. As the hardest working device in a home, the furnace should be a priority for maintenance. Regular cleaning prevents unnecessary expenses in the long run.

Expensive furnace = no need for cleaning

A more expensive furnace might burn fuel more efficiently and last longer, but only if it is properly maintained. Without regular cleaning and checks, even the best furnaces will eventually break down.

A dirty filter is no big deal

In reality, a dirty filter is a serious issue. Filters prevent mold spores, pollen, dust, and bacteria from circulating in homes. These pollutants can result in respiratory problems and allergic reactions, particularly harmful to individuals with asthma.

Filters only need to be replaced once a year

The frequency of replacing filters depends on the furnace usage, environment, and filter quality. In high-use or dusty conditions, filters might need to be replaced two or three times a year.

Avoid cleaning by closing registers

Closing registers in homes places undue stress on the furnace. The system is designed for a specific airflow volume, and altering this by closing registers forces the unit to work harder.

Always go for the discount cleaning service

While it may be tempting to choose the cheapest service, not all cleaning services are equal. Extremely low prices often indicate that the service may cut corners, which can lead to more problems in the future.


Artic Energy is a professional heating and cooling service in Houston, TX. We provide HVAC installation, air purifier installations, filter replacement and maintenance services, repair maintenance, energy-efficient solutions and seamless installations.

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