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> Digital Thermostat Too Cold
SteveE
post Dec 5 2011, 11:13 AM
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Recently, I installed a digital thermostat (Honeywell RTH-221, (< $20.00 at Home Depot) in my travel trailer and was very pleased at how much better it was at maintaining a consistent temperature in the trailer.
However, I have just discovered that when the interior of the trailer gets below freezing, the thermostat will not come on until it is warmed up to above 32 degrees F.
I suppose I could modify this one with a bypass switch....but why ....
Can anyone recommend a digital thermostat that, without modifications, will allow the RV furnace to come on when the thermostate is below freezing?
Thanks, Steve
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pianotuna
post Dec 5 2011, 10:18 PM
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Hi Steve,

If you still have the old thermostat you could wire it in parallel with the Honeywell. Just set the old one high enough to allow the new one to cut in.

I chose to have a manual thermostat because of the likelihood of batteries freezing.


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Regards,

Don
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