wrote in message
...
I just put a fan in the gable of my barn so my indoor farm animals are
not overheating on hot days. Rather than buying a commercial barn
fan, which is costly and most are too big for my small barn anyhow. I
bought a used fan that is intended to be used as an exhaust fan. I
already had a vent up there, so I just mounted the fan over tbe vent
inside the barn.

However, I dont want this fan running all the time. Only when the
temperature gets about a specific temperature up there at the roof
line. I am assuming it should turn on around 85 degrees. and off at
70 deg.

I have been looking for a way to install a thermostat, but as simply
as possible. To install a standard heating - cooling thermostat like
the types used in a house for furnace and AC, would require a
transformer and quite a bit of wiring. Not that it's out of the
question, but I am thinking there must be an easier way, where the
thing is simply installed in the 120vac line, right next to the fan.
I know they make devices like this for portable and baseboard electric
heaters. But those will be just the opposite of what I want to do.
(it would switch on at the low temp and on at the high - That's
backward). But something similar to that is what I am hoping to find.

Does anyone have any suggestions? I do have an old air conditioner
with a dead compressor. Could something be salvaged from that? I'm
always looking to save a buck if I can salvage something from junk.

Anyone?

Thanks

Mark


This is Turtle.

most thermostats on window units have a range of 64ºF to 90ºF and would do fine
for turning you fan on when you needed it to. so rob the thermostat out of the
old window unit and use it to control it.

TURTLE