Best Gas Furnaces
92.1% AFUE Two Stage - Variable Speed
What are the benefits of two stage; variable
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