What does a variable speed blower do?

When planning to purchase a new HVAC system there are many things to consider.  From efficiency, noise, output, and comfort there are many choices to be made.  One comfort piece is the variable speed blower…so, what does a variable speed blower do?

A variable speed blower is designed to run at different speeds to control the flow of warm or cool air throughout your home.  By running in the slower speed the blower creates a longer run time.  This allows more time for the warm air to circulate throughout your home, preventing hot and cold spots.  Another benefit to a variable speed blower is better indoor air quality.  With the slow speed, most homeowners leave the fan running all of the time so that air is constantly being circulated through the filter, UV light, or air cleaner.

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