Electric In-Floor Heating for Concrete
- Designed to install in cement or sand under cement slab
- Easily changed floor coverings when no damage is made to the slab
- Up to 18 W/ft² heat output, depending on spacing
- Included single cold lead wire for easy hookup
- Abrasive-resistant heat cable
The best time to install radiant heat is at the beginning of your building project. ThermoSlab heating systems consist of heating cables installed in the foundation of a building in the concrete slab or the sand below it. ThermoSlab cable can be installed during a full home build, or when pouring any new concrete slab such as for a room addition, sunroom, or garage addition. ThermoSlab provides radiant heat solution that functions as a permanent addition to your home, and lasts through changes of the floor covering in that space over time. It is also a great option for spaces like a basement or garage that might use a finished concrete floor. This system allows you to take advantage of off-peak electricity rates because the thermal energy is stored and released over time by your concrete foundation.
Slab Heating Cable
Combine cables as needed to fit open walkable space, avoiding areas covered by cabinets, vanities or other permanent fixtures. The heating cable cannot be shortened, so avoid over-filling. Each cable will connect to the thermostat, so larger cables will reduce required connections. At 5" spacing on a sole thermostat, 120V cables cover up to 122 ft²; 240V cables cover up to 244 ft². DO NOT MIX VOLTAGES.Contact us for project assistance.
Thermostats & Critical Components
A floor heating thermostat is necessary to control your radiant heat system. Most of our floor heating thermostats are dual-voltage and include a 5ma GFCI, unlike models from online warehouse retailers. A thermostat is capable of a 15-amp load; adding a power module or relay will increase system load capacity. Each includes a floor sensor, but a backup is recommended. Select 1 thermostat for each zone desired.
Avoid future replacement headaches (15'). Include 1 per thermostat.
2-Gang electrical box, conduit & connectors. Include 1 per thermostat.
Monitor mats for faults during install
Verify resistance before/after install
Doubles the capacity of 1 thermostat
Tools & Kits
Save 15% over buying separately
Save 9% over buying separately
Plastic trowel prevents accidental cable nicks
Plastic trowel prevents accidental cable nicks
Protect the heat wires
How To Install ThermoSlab Heating Cable
This overview does not substitute for a full reading of the Installation Manual.
The below steps will take you from beginning to end simply, but please refer to the full Installation Guidelines or call us to go over a more detailed installation plan.
ThermoTile Mats are an easy way to add heat to a tile floor, and can even work for almost any other type of floor covering.
Before beginning your installation:
- Plan your order for area coverage and desired watt density
- Consider in your plan the need to stay 12 inches off from fixtures such as, but not limited to, drains, pipes, or electrical conduits.
- Measure the resistance of the heating cables before beginning installation, as well as at multiple points during installation.
1Make sure you have the right amount of material
- The mats should cover the entire floor space.
- Follow heating mats spacing from walls according to the manual.
- Heating elements should be in areas where you can walk, stand, or want to heat. See your manual for areas to avoid heating.
- Contact support if you have any questions prior to your installation.
2Prepare conduits and electrical boxes for installation later.
- Complete electrical rough-in
- This step may be done after cable is laid but is more difficult to do later as location of thermostat may change location of heating system.
3Begin laying out the heating cable. Ensure that the cable will set at least 2 inches below the surface of the conrete.
- Position the cable so that at least 12 inches of power lead wire will be embedded in the cement.
- Follow the cable spacing intended in the plan established before ordering.
- Many installers choose to attach ThermoSlab cable to the rebar or wire mesh, but cable strapping is another option.
4Install the sensors.
- Highly recommended to install a backup sensor.
- Position sensor evenly between 2 heating cables.
- Do not cross the heating cable.
5Pour the concrete
- Ensure that all persons involved in the pour take necessary care to not damage the cable with tools or machinery.
- Test the resistance of all cables while concrete is still wet.
6Wait until the concrete is fully cured before powering on the system.
- This is roughly a 30 day process, consult with the specifications of the concrete for a specific length of time.
ThermoSlab Cable FAQ
What is ThermoSlab?
Is this a safe product to put in my home or business? What about EMF?
Can I use ThermoSlab with my floor material?
How do I install ThermoSlab? How do the cables get connected?
Will this add height to my floor?
How deep does the concrete need to be for ThermoSlab?
What if I’m not pouring a full 2 inches of new concrete?
Can I combine more than one ThermoSlab cable to fit a space?
Can I cut or shorten the heating cable?
Can I shorten the lead wires?
What do I do with areas that are not heated?
Can ThermoSlab cable really stand up to pouring a new slab?
How many watts per square foot does ThermoSlab output?
How much will it cost to run this system?
How hot does ThermoSlab get?
How long will ThermoSlab last? How long is the warranty?
I’m still confused.
Features of ThermoSlab Cable:
- Factory-attached 20' lead wires
- UL Listed in the U.S. and Canada
- Zero EMF
- Floor heating adds comfort and property values
- Tough to withstand installation
- Smart when combined with a WiFi thermostat
- 10-year warranty against manufacturing defects
Our Commitment to You
Supported by Real People
We know that being the best doesn’t just mean superior products, it means backing them up with superior service.
Priority 1: Making You Happy
Creating joy and comfort with our heat applications is our primary motivation.
American-made quality, easy installation, and safe operation. All competitively priced for the best value in radiant heating.
Innovative & Reliable Design
Pushing the industry forward with innovation and here for long haul with the greatest reliability. That’s why our systems are in our homes too.
Understanding Your Needs
ThermoSoft is the best partner for your project because we know when to listen, and when to offer guidance.
Our reputation is one of our best assets. We developed that reputation by delivering on every promise.