Do It Yourself Radiant Heat - Turning ThermoTile® Mats


ONLY cut the fiberglass mesh, DO NOT cut the Heating Wire.

Incorrect radiant floor heating mat cut Correct radiant floor heat mat cut

There are 6 main types of turns while installing ThermoTile. Under no circumstance should the main heating wire be cut, only the fiberglass mesh.

  1. U-Turn - used to make multiple rows of ThermoTile (most common cut).

    1. Cut fiberglass mesh all the way across without cutting the heating wire.
    2. Rotate mat 180° and continue row.

    Tile warming mat u-turn
  2. Full Corner - used to make sharp turns (corner is heated)

    1. Cut fiberglass mesh all the way across without cutting the heating wire.
    2. Rotate mat 90°.
    3. Flip rotated part of mat over.

    Electric floor heating mat full corner turn
  3. Open Corner - used to make sharp turns (corner is not heated)

    1. Cut fiberglass mesh all the way across without cutting the heating wire.
    2. Rotate mat 90°.

    Underfloor heating mat open corner turn
  4. Rounded Corner - used to make rounded turns

    1. Make 4 cuts in a row, on the same side, through the fiberglass mesh without cutting the heating wire.
    2. Maneuver the wire so that each section is in angled though the turn.
    3. Example: for 90° turn, the 1st section would be angled about 22°, 2nd 45°, 3rd 67°

    Heated flooring mat fan turn
  5. Obstacle #1 - used to maneuver mat around obstacles

    1. Cut fiberglass mesh all the way across without cutting the heating wire.
    2. Flip mat over.

    Floor heating obstacle avoiding turn
  6. Obstacle #2 - used to go around obstacles and continue row

    1. Cut Mesh 3 times or more times on alternating sides.
    2. Gently stretch mat (not wire) so the heating wire is runs along the obstacle.
    3. Continue row.

    Electric floor heating mat avoiding obstacles

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