Multi-Speed vs. Variable Speed Furnaces

Who knew there were so many options when shopping for a new furnace? Size, brand, efficiency level, type of speed… it can be overwhelming! When looking for a furnace, it is essential to have a qualified consultant that you can trust to help you navigate the waters. However, knowing what is out there before the plunge is also helpful. So, this post will focus on the difference between multi-speed and variable-speed furnaces.

Outside temperatures vary throughout the fall and winter, so your furnace works at different speeds, depending on the temperature, to heat your home. The furnace needs to run faster and harder when it is cold out. Multi-speed furnaces have a few set speeds that the furnace can operate at, whereas variable-speed furnaces are much more flexible. Think of a multi-speed furnace as a ladder and a variable-speed furnace as a ramp. A multi-speed furnace might have HIGH, MEDIUM, and LOW settings, whereas a variable-speed unit would be able to run at speeds in between.

What are the pros and cons of each? Price is a significant factor. Multi-speed furnaces typically cost less to install. However, variable-speed furnaces are more efficient and will save you more in the long run. Because of its flexibility, a variable-speed furnace can meet the needs of your home, while a multi-speed furnace might run faster or slower than necessary. This can waste money, so you are not as comfortable as possible.

Whether you choose a multi-speed or variable-speed furnace is up to you. For more information about the different types of furnaces and other residential heating services, contact FLAME!