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Thermostat help

dryfly Member, Email Confirmation Posts: 2
I am building a new house. 3 story with hydronic heating in 4 zones. I would like to find a thermostat that can control each zone from one location using remote sensors. Does anybody know of any? A smart thermostat would be a plus.


  • Alan (California Radiant) Forbes
    We did a job 15 years ago in San Francisco where the engineer specified Aprilaire components with sensors in each zone and the thermostats in the mechanical room. Here are the components we used then:

    8870 thermostat
    8818 distribution panel
    8825 hub (distribution panel)
    8811 adaptor
    8027 transformer
    8051 flush mount sensors (L40-491)

    They probably have a new generation of controls by now; possibly even smart thermostats.
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
  • SuperTech
    SuperTech Member Posts: 2,184
    I'd use Honeywell T9 thermostats and just wire them to the zone control panel in the mechanical room.
  • dryfly
    dryfly Member, Email Confirmation Posts: 2
    I had already checked the Aprilair 8920W as a possibility as this was the newest model and was told they had nothing. I will find out more about other models directly from manufacture.
    Thanks Dryfly
  • Zman
    Zman Member Posts: 7,572
    Tekmar will have several models with that capability.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein