I've had a Heil updraft furnace installed in my little brick
bungalow since 03-06. Standard-looking rig.
Sequence of ops looks like:
Tstat calls for heat
inducer motor runs for a bit
igniter heats up
gas valve opens, burners fire
igniter turns off
blower kicks in
What can y'all tell me about the inducer motor? When is it
supposed to run? Not run? What does it really do?
Furnaces didn't used to have inducer motors. When and why did
we get inducer motors? Was it because of redesign of the
In the context of design, are inducer motors really needed in modern furnaces?
Or are they another bell-and-whistle that mostly just generates service
"Blues starts to rolling ... stops at my front do'.
I'm gonna change my way of living ... won't have to worry no mo'."
- from "Blues Before Sunrise", Leroy Carr, maybe 1934