How to Install Radiant Floor Heating
Learn how to install radiant floor heating with our detailed step-by-step guide. Follow our easy instructions to get it done right.
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0 of 6 steps completedStep-by-Step Instructions
1 Step 1: Choose System Type
Step 1: Choose System Type
Select electric mat system (easier) or hydronic tubing (more efficient for large areas).
Electric Radiant Heat Mat
Pre-wired heating mat for under tile (per sq ft)
Radiant Heat Planning Guide
Book on designing radiant floor systems
2 Step 2: Test and Prepare Subfloor
Step 2: Test and Prepare Subfloor
Ensure subfloor is level, clean, and dry - test for moisture before installing.
Moisture Meter
Tool for testing subfloor moisture levels
3 Step 3: Install Heating Elements
Step 3: Install Heating Elements
Lay mat or tubing according to plan, avoid cutting heating wires, test resistance.
Digital Multimeter
Tool for testing heating mat resistance
4 Step 4: Install Thermostat and Sensor
Step 4: Install Thermostat and Sensor
Mount thermostat on wall, run sensor wire to floor between heating wires.
Programmable Floor Thermostat
Smart thermostat for radiant heat control
5 Step 5: Cover with Thinset or Self-Leveler
Step 5: Cover with Thinset or Self-Leveler
Carefully spread thinset over heating elements, avoid damaging wires.
Modified Thinset
Mortar for covering radiant heat mats (50-lb bag)
6 Step 6: Install Finished Floor
Step 6: Install Finished Floor
After thinset cures, install tile, engineered wood, or other compatible flooring.