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Radiant heating

Andy Morgan_2
Andy Morgan_2 Member Posts: 147
What is the most cost effective way to control three seperate rooms off of one manifold? I would like to use floor sensors tied into the telestats on the manifold, but I am not sure of what control to use. The radiant is just for floor warming.

Thanks

Andy

Comments

  • hr
    hr Member Posts: 6,106


    How many loops per room? If it is one loop per room that is easy with manifold mounted telstats. I wish someone would make a manifold splitter that would allow several loops on one manifold port. Here is one idea I had.

    If not you would need to wire a number of telestats together to operate several loops.

    I use a basis setpoint control for floorwarming. Goldline, Ranco, Johnson Controls, Heat Timer, and others make inexpensive digital ones. Go for one with an adjustable differential. I mount them in the mechanical room to allow the homeowner acess to them for fine tuning, should the be inclined :)

    hot rod

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  • kf_2
    kf_2 Member Posts: 118
    Stadler makes

    a Y fitting to split one manifold port into two loops.


    kf
  • Chris Maderia
    Chris Maderia Member Posts: 120
    Peace of Cake

    If your using Wirsbo, bring your loops back to your manifolds, then using telestats on each loop wire them in series their for each zone/room to either their 3 or 4 zone control module. Use their setpoint control as your therm. This will allow them to all open and/or close at the same time. If you can get ahold of their CDAM the wiring diagram is in there This is a very simple wiring and piping scheme.
  • hr
    hr Member Posts: 6,106
    Expensive cake

    Lets say you have 4 seperate zones. Each zone has 3 loops. You would need 12 telestats and a large enough transformer to power them. At $40.00 a pop = $480.00

    Or you could use a spliter, if the gpm requirement is in line with the manifolds branch capacity. 3- telestats $120.00

    Or three off the shelf zone valves for say $60.00 each = $180.00, with copper or brass manifolds with the correct number of ports.

    I will say the brass or stainless manifolds with rows of telestats look nice, either method will serve the purpose.

    hot rod

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  • Art Pittaway_2
    Art Pittaway_2 Member Posts: 80
    Flow direction

    Does it make a difference to the operation of the telestat valve if the flow is going the other way? Danfoss TRV's will chatter and moan. I've never tried doing anything different with a telestat type valve.
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