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3 Season Room idea

Cyclist77
Cyclist77 Member Posts: 151
in THE MAIN WALL

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: 24,976

    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
    https://forum.heatinghelp.com/discussion/comment/1853750#Comment_1853750
    17457990569776992330276691063575.jpg
    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: 17,670

    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: 12,547

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

    delcrossvLong Beach Ed
  • HVACNUT
    HVACNUT Member Posts: 6,736

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

    mattmia2delcrossvGGross
  • 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

  • hot_rod
    hot_rod Member Posts: 24,976

    Gosh if you are investing in a boiler why not keep as much of the heating system hydronic? You already paid for the "heat" all you need is an emitter. Ceiling, wall, floor radiant. A nice panel rad for quick ramp up or down. If you really want blowing air, a wall mount hydronic kick space heater.

    I'm assuming no AC? That would be the only reason to add another complete system like a mini split.

    I really dislike moving heat with air, personally. Hot air rises. People reside at floor level :)

    I have yet to find a completely silent fan or blower.

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • pecmsg
    pecmsg Member Posts: 5,974

    @hot_rod

    Ducted minis when properly sized and installed are virtually silent!

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