Your furnace still has the limit switch stuff to protect itself if the
thermostat
tries to tell it to do something stupid. For example, the thermostat may
tell the furnace to turn off the fan as soon as the burner turns off, but
the furnace won't actually do it until enough time has passed for
the burner to cool off.
I Just bought a house with gas forced-air (my old house was oil with radiators),
and I am learning all this stuff myself.
Doug Braun
At 01:32 PM 12/14/2005 -0500, you wrote:
>> Perhaps ... what kind of furnace do you have ?
>
> Natural gas forced air.
>
>> Personally, I think that's a good thing. I don't like the idea that a $40
>> electronic gadget made in Taiwan has the potential to set my house on fire
>> if it malfunctions. (Ask yourself what happens if the thermostat starts
>> the burner but the fan motor doesn't run.)
>
> I would expect there to be safety devices in place to protect this,
>although I am really just guessing. However this is a relatively modern
>unit.
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