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