Best Gas Furnaces
92.1% AFUE Two Stage - Variable Speed
What are the benefits of two stage; variable speed furnaces?
Two stage furnaces operate like two separate furnaces to maintain a more consistent
comfort level throughout your home. During the first stage, which is about 80% of
the time, the unit will use about 68% of its heating capacity. It will always start
in the first stage and attempt to meet the heating demand. This reduced capacity
is enough to efficiently warm your home on mild winter days. When the temperatures
drop the furnace automatically adjusts itself and enters the second stage to meet
the increased heating demands. Thanks to two stage technology the temperature in
your home will only vary a couple of degrees and you will experience quiet comfort.
Improved air filtration is delivered with two stage variable speed so you’ll breathe
a lot easier. The unique variable speed motor improves humidity control and operates
quietly. In fact, in most installations it is practically silent. The variable speed
also allows the motor to ramp up gently eliminating uncomfortable temperature swings.