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Electric radiant

Nron_9
Nron_9 Member Posts: 237
in THE MAIN WALL
We are useing a 24 volt electric called Step Warmfloor for small areas in finished homes easy to install and does not require a seperate breaker .

Comments

  • Bill Barrett
    Bill Barrett Member Posts: 43
    Electric radiant

    Anybody using electric for small baths? 44 sq ft?
    Thanks
  • Mike T., Swampeast MO
    Mike T., Swampeast MO Member Posts: 6,928


    Used a product called Warm Tiles. www.easyheat.com

    It's a fixed length cable system so you have to be very careful when ordering. Works well until the "tile as normal" step. You HAVE to "butter" the tiles (cables and notched trowels aren't compatible) and the various systems for securing (I've seen two) are too thick for thinset unless you're using huge tiles and need a ¾" U-notch trowel. I found it by far best to remove the clips as you proceed with tiling.

    If you have 44 sq.ft. of actual heatable space (no tub, vanity, etc. above) the Warm Tile gross output is about 43-54 sq.ft. 5.1A or 2,090 btu/hr @ 120V using 3" spacing. 40-48 sq.ft. 6A or 2,459 btu/hr @ 120V using 3"-1½"-3"-1½" spacing.

    If a "typical" small bath about half of the floor is essentially useless for heating so gross output with 19-26 sq.ft. heated is 2.2A or 902 btu/hr @ 120V 3" spacing; 20-26 sqft 3.0A or 1229 btu/hr @ 120V 3"-1½" spacing.

    (The 3"-1½"-3"-1½" spacing is recommended only for concrete slabs or over unheated crawlspaces. In all conditions it is considered a supplemental heat source only. IMO much of this has to do with how it is marketed mainly to tilesetters and homeowners.)

    IMO the thermostat for the system shouldn't be considered an "option". Experimented with one without and floor overheats during moderate weather.

    There are also some "mat-type" systems that would probably be very good for simple, small, square spaces.

    The Step Warmfloor system mentioned above http://www.warmfloor.com/ seems rather unique, but I haven't used. Likely more expensive, but it modulates output and unlike the other systems I've used/seen is marketed to be the actual heating system--not just a "floor warming" system.
  • Dale
    Dale Member Posts: 1,317
    temp zone

    You may want to look at the "warmly yours" temp zone product for tile. About 15 watts a sq ft. www.warmlyyours.com
  • Dan Foley
    Dan Foley Member Posts: 1,264
    Electric Radiant

    We have used the Watts-Radiant mats on a couple of small projects and I have one in the pipeline. They work well in small applications where is not an existing boiler to tap off of. -DF


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