Rated 4.6 out of 5 by 5
Rated 5.0 out of 5.0 by Southerner added to newly purchase attic ventilator
Installation was made by a qualified electrician, but was quite simple. We did call the company to make sure how to properly wire it so the humidistat and thermostat worked separately. The instructions were not included for that. But, it works fine. It's come on several times in the early morning when it's very humid here in the South. I would definitely recommend including this if you install a thermostatically controlled attic ventilator fan.
August 10, 2016
Rated 5.0 out of 5.0 by cliff A "must purchase" for older homes
This humidistat is a must have accessory for its matching gable mount attic fan which comes only with an adjustable thermostat. Especially in older homes with less or no attic insulation, it is critical to remove humidity which may leak from heated living spaces below into the attic during winter months. Unless this is done, damage to the underside of roofing underlayment will occur and it is conceivable that condensation and melting of ice formed inside the attic on roofing nails protruding through the underlayment will penetrate ceilings and leave water stains. My only issue with this humidistat unit is the wiring diagram stamped on the unit housing. It does not contemplate its use with a thermostat, so if one follows the diagram during installation the thermostat will not turn the fan on at the recommended 105 degrees in the Summer. Oddly, one must call the customer service number for the manufacturer and provide your email address at which they will email you the correct wiring diagram to connect the humidistat to the thermostat and allow them to work together properly. Seems to me it would be easier to just include a small paper insert in the box for either the thermostat or the humidistat to illustrate the combination set-up if you wish to use both units in series rather than the current "need-to-know" system.
August 17, 2016
Rated 4.0 out of 5.0 by goose not many to choose from.
All that is needed for the application! What else besides t-stat is needed to control attic fan
July 12, 2016
Rated 4.0 out of 5.0 by mick great product
Good product, easy to install, may need adjusting to your attic, buy over all OK.
November 10, 2015
Rated 5.0 out of 5.0 by Butch DUAL use!
Great product! Let's you make DUAL use of your attic fan.
June 10, 2014