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3 Season Room idea

Cyclist77
Cyclist77 Member Posts: 151

I will be installing a new Weil-McClain CGa4 later this summer for our radiant floor heating system. Had a thought/crazy idea yesterday about our screened in porch. If I turned it into a 3+ season room and wanted to have a panel type radiator but wanted to protect that loop from freezing. What would be my setup? I will be using a Tekmar 4 way mixing valve in the system.

Some type of antifreeze loop?

Any advice would be great!

Thanks

Comments

  • hot_rod
    hot_rod Member Posts: 24,973

    what size room? Either a glycol loop or drain it out in winter

    If it is small, and infrequent use, maybe just an electric heater?

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Cyclist77
    Cyclist77 Member Posts: 151

    Bob,

    That's too simple! I'm trying to make it as complex as possible!

    delcrossv
  • delcrossv
    delcrossv Member Posts: 2,139
    Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.
    Mad Dog_2
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 17,668

    Depends on the size of the room. Electric heat is good for a small space nothing to freeze.

    Alternatives are to put HW heat in and glycol the whole system which can cause issues

    A heat exchanger to separate the glycol from the regular system would require an expansion tank and another circulator or two + other goodies gets expensive

    Or isolate and drain that part of the system in the winter

  • mattmia2
    mattmia2 Member Posts: 12,546

    or run gas out there and use a direct vent console heater or something similar.

    delcrossvLong Beach Ed
  • HVACNUT
    HVACNUT Member Posts: 6,735

    The three season room is why Mitsubishi invented the Mr. Slim.

    mattmia2delcrossv
  • Larry Weingarten
    Larry Weingarten Member Posts: 3,810

    Hi, I know it's not hydronics, but build the room with amazing insulation and air-tightness. Then circulate air from the main living space to and from the add-on. 😇

    Yours, Larry