imgoin4it wrote:
We used to call them a "humidastat". Mounted on the wall like a thermostat. Used them in sensitive computer environmental areas where if the humidity would get too high it would bring on the air conditioning to condense water from the air to lower humidity and if temperature was too cool would bring on reheat to warm the air control temperature. Haven't seen or heard of one in years, but could try heating/air-conditioning supply sources.
Both of my Fantastic Fans are controlled by wall thermostats.
You can select IN or OUT for fan direction and temp that fan comes on/off.
Fan in 'auto'......vent opens when triggered by t-stat and fan comes on at speed selected.
Then when temp is reached, fan stops and vent closes
