Things You'll Need:
- diagram of your bathroom
- tile
- selected cabling
- tile backer board
- thin set mortar
- trowel
- electrician
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Step 1
First, you will want to make a diagram of your bathroom. Take the diagram to your electric radiant heat supplier to determine the amount of cabling you will need for your application. You will also want to ask the supplier about the type of tile that you will need to use to best suit the flooring application. Most cabling works well with any type of tile, but some types of cabling work best with thin set tile.
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Step 2
Next, bring in an electrician to install the wiring for the sub floor heating. You will need a 15 to 20 amp circuit, which is something that is best left to professionals. The electrician can also make sure your system is up to code.
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Step 3
Remove all existing floor to the sub flooring. Install tile backer board on the sub floor to give the tile and cabling something to hold on to when it is installed.
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Step 4
Lay the cabling or mats the way you had it drawn out when consulting with your supplier. Secure the cabling or mats with double sided tape. When you have all the radiant heating installed, add a thin layer of thin set mortar and spread with trowel. Be careful when using trowel, so that you do not damage any of the heated sub floor cabling.
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Step 5
Install your tile over top of the cabling. After you have laid the tile, perform "tap" tests. To do a tap test, take a rubber mallet and tap the floor lightly to ensure none of the cables were damaged and the circuit was not interrupted by the installation of the tile.
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Step 6
Install the thermometer in the circuit.
