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Thermostat with Humidistat

Empire_2 Member Posts: 2,343
Carrier and York 94+ furnaces with the variable speed blowers reccomend them. Acts as a dehumidifier when inside ambiant is satisfied, but R/H% is needing attention. Acomplished by running blower at lower RPM (thus viarible) to lower the R/H without to much affect on sensable load in the structure.


  • Big Ed
    Big Ed Member Posts: 1,117

    Do they make a 24V heat/cool + humidistat ? a Thermomidistat ?
  • Big Ed
    Big Ed Member Posts: 1,117
    Thanks Guys

    Will it work on this system ? Hydronic heat with bb, central air system , humidifier on central air system. I want the humidistat to turn on blower and humidifer when falls below rh% setting .......

    Thanks again
  • Empire_2
    Empire_2 Member Posts: 2,343
    Standard Humidistat

    If you need the humidification in winter, sure it would work, but you can accomplish this with a standard stand alone humidistat and a relay or 2. The Thermidistats are generally for de-humidifying in the A/C mode. And they are quite expensive.
  • Joe Brix
    Joe Brix Member Posts: 626
    You don't want

    the AC blower on distributing cold air with a duct system humidifier. Only works with hot air systems. Need warm air to carry the humidity also. Get a wall mounted humidifier from Aprilaire that will generate humidity for the home.
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