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Posted by Noon-Air on November 21, 2006, 9:12 am
>
> DeanB wrote:
>> Hello all,
>>
>> I want to connect a wood furnace to a thermostat, but I don't know the
>> coloring conventions here. The thermostat is a Honeywell RTH8500.
>>
>> For conventional heat, the left hand side is:
>>
>> Y2
>>
>>
>> W2
>>
>> and the RHS is:
>>
>> RC
>> R
>> W
>> Y
>> G
>> C
>>
>> Now, I am almost clueless here as I lost my instructions and cannot
>> find anywhere to download them. (WTF?) My friend is coming over to
>> install the furnace but I said I would wire up the thermostat through
>> the wall myself to speed things along.
>>
>> My Home Depot thermostat wiring has Red, White and Green wires. I've
>> got it all snaked through the wall but I don't know which wires go to
>> which terminals, and even if I need 2 or 3. I presume if I use 3 I can
>> run the thing without using battery power, but I am not really sure.
>>
>> Sorry for the basic question!
>>
>> DeanB
>
> Following up from a bit of research - can someone verify this is
> correct:
>
> Its for a simple wood furnace. Wire has green, white and red. I wired:
>
> G - green
> R - red
> W - white
> and removed the jumper between RC and R (not sure about this one).
>
> Then I can control the fan alone, or heat (which requires the fan). I
> am assuming that when heat is needed, the furnace will turn on the fan
> automatically to flow around the firebox.
It doesn't matter what color the wire is, as long as it goes to the right
place. You are clearly over your head on this one, let the contractor do it.
It will only add 10 minutes to the job, and won't cost you any more if the
contractor is using flat rate pricing. If he is still in the dark ages and
charging for time and materials, your screwed.
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