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Electric instantanous ar radiant

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hr
hr Member Posts: 6,106
in THE MAIN WALL
insisting on electric, won't consider LP or oil. Anyway to use a PowerStar or AquaStar? I'm pushing him for an electric boiler but he wants to try a instantanous.

I've heard warm returm temperatures may lock them up or ramp back the output. Seems like a low flow rate also.

Anyone??

hot rod

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  • Bob_24
    Bob_24 Member Posts: 5
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    electric boiler

    We have an electric boiler that modulates elements based on setting from a built-in aquastat, built-in supply water sensor and standard outdoor sensor / automatic reset control. We would be glad to send you info, we stock these boilers in 6 kW – 23 kW.
    GoPack
  • Dan Peel
    Dan Peel Member Posts: 431
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    with buffer

    I keep going into that thought circle too.
    The electric "advantage" will always be it's 100% usable BTU.
    The 1.5 gpm @ 90deg rise of a 135Mbtu (40KW) instantaneous is worlds away from 13.5gpm @ 10deg rise for radiant delivery.
    Let me know if you craft a viable solution - electric tank type heater or boiler is where I keep ending up. Enjoy....Dan

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  • nick_7
    nick_7 Member Posts: 15
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    if you absolutely have to use electric for radiant heat, don't you always do better by opting for electric mats or cables set in gypcrete. i mean, doesn't taking the step of heating and circulating water only increase your cost and also potential for noise/trouble?
  • heatboy
    heatboy Member Posts: 1,468
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    With an electric boiler.............

    it always gives the client the future option of upgrading to a fossil fuel source. When using electric mats or cable, a short or open circuit pretty much ends your radiant days. Cost aside, the boiler seems like the more advantageous option.

    hb

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    heatboy



    The Radiant Whisperer





    "The laws of physics will outweigh the laws of ecomomics every time."
  • hr
    hr Member Posts: 6,106
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    Electric

    is not generally my choice, but the homeowners. Electric cable and or mats get fairly pricey for large areas. They are great for bath or kitchen areas, I think.

    Also hard to repair should a cable break.

    With a hydronic system you can change the heat source, which is exactly what this fellow will do, I predict, when he gets his first power bill!

    He has solar and a wood boiler planned for down the road.

    hot rod

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