I recently got a Bryant Evolution 90i system. In the thermostat I set
my temperature at night to be 64 F and in the morning 7 am to be 68 F.
Furnace start around 5:30 at low heat until it reaches 66 F by about 6
am. Then after that furnace stat to run at high heat and high blower
speed about an hour until the house temperate reaches 68 F (which is
the set point). Is this the normal behavior? I thought the energy
efficient units should figure it our how long does it take to reach a
set point and the furnace should run at slower speed and low heat as
much time as possible.