A network of low profile fully armored heating cables placed in mortar just below your flooring providing a warm floor and added comfort to the room above.

Warming Systems has products designed for either 120V or 240V applications. The system is designed to supply approximately 12 watts per square foot


Warming Systems floor warming systems are designed for marble, concrete, ceramic, tile, laminate, engineered wood, carpet, pavers, or slate floor types.

Yes. We recommend using some type of insualtion to avoid heat loss through the concrete. We sell a synthetic cork underlayment called Cerazorb that does this https://www.warmingsystems.com/cerazorb-thermal-break-underlayment-2-x-4/.

It usually takes approximately 1 hour to warm the floor, depending on floor types, distance from floor surface, and the insulating properties of the floor below.

There are many variables that can affect the floor temperature, but generally the floor will warm to about 90°F.

Besides the difference in voltage, the amps are different as well. The amps on a 240V system are half the amps of a 120V system. For example a 50 sq. ft. 120V system is 5.0 amps. The 50 sq. ft. 240V system is 2.5 amps. The total watts on a 120V or 240V system are the same (12 watts/ sq. ft.). On the 50 sq. ft. system regardles of the voltage, total watts are 600.

The 240V system will not heat up faster than the 120V system and there are no energy savings besides the fact that there are less amps on the 240V system. Both systems are 12 watts/sq. ft. and you pay per watt on your electric bill.

Warming Systems products are designed for easy installation by the average do-it-yourselfer, making sure all local electrical building codes are followed.

You will need to accurately measure the area of the floor you intend to warm in square feet. Do not include areas under objects such as toilets, vanities, or other inaccessible areas or permanent objects. Measurements should be as accurate as possible. For more information see Tips for Choosing the Right Size Product. If you still need help, email an accurately measured floorplan to design@warmingsystems.com.

Yes by measuring the ohm resistance between the black and white cold lead wires. The ohm reading is different for each size system. The ohm resistance range can be found on the white label on the silver cold lead of the system. Do not energize the cables prior to installation.

The reading on the sensor wire is 8,000 to 12,000 ohms NOT 8-12 ohms. Don't let your fingers interfere with the reading. Hook the sensor wire up to the thermostat, if you get a temperature reading it's OK.

No. The length of the heating element can not be adjusted.

Yes, the shielded cold lead can be cut to a desired length.


No. The heating elements must not touch, cross, or overlap itself at any point. This will void the warranty and require replacement.

The heating element should keep a minimum distance of 2" apart at all times.

The heat radiates no more than 2" in either direction of the cable.

Use a polymer modified cement based mortar.

You can purchase a repair kit to fix it.

We recommend installing the heating system on concrete or concrete backer board, but the system can be installed on a plywood subfloor. Regardless of the subfloor, the heating system must be completely embedded in a polymer modified cement based mortar.

We recommend installing 2" from the wall since the heat radiates no more that 2" in either direction from the cable.

Yes. You can do this one of three ways.
1. Use a GFCI protected circuit breaker
2. Have the system tapped off the protected side of a GFCI outlet
3. Use a thermostat with the GFCI built into it.

The OJ Electronics thermostats and aube by Honeywell model TH115-AF-GA thermostat are GFCI protected. The aube by Honeywell thermostats TH115-AF-120S and TH115-AF-240S are not GFCI protected. If you use these thermostats you need to have a GFCI protected circuit breaker.

Multiple mats/cables can be connected in Parallel at the thermostat. Mats/cables are not connected together on the floor. The systems must be the same voltage. Please see following question.

You can put up to 150 sq. ft. of a 120V system on one 120V thermostat and up to 300 sq. ft. of a 240V system on one 240V thermostat.  Anything over these sizes requires additional thermostats or a power module.

4" square electrical box with a single gang mud ring that's located within reach of the 10' cold lead.

Keep heating wires about 6" to 8" away from the wax seal on toilet. If the wax gets hot, it could melt.

This means that the end of the heating wire does not need to be run back to the thermostat. This process makes the installation easier, and the average home owner can install the product themselves.

The cold lead that connects to the thermostat is 10 ft. long.

The thermostat floor sensor is 10 ft. long.

No, but you can install our heating systems under laminate or engineered wood floors.

Warming Systems offers a 25 Year Warranty on its heating mats and cables. Thermostats have a 1-year warranty through Warming Systems and an additional 2-year warranty with the thermostat manufacturer.

No. The electric floor warming systems manufactured by Warming Systems Inc. are designed for interior floor applications, supplying 12 watts/square foot. They cannot be used for exterior snow melt or ceiling heating applications.

Electric floor warming systems are very cost effective to operate. An average bathroom uses about the same amount of energy as two 100-watt light bulbs. Used in conjunction with a programmable floor-sensing thermostat will make the system even more efficient.

Orders being delivered within the U.S. are shipped via UPS or USPS. Orders delivered to Canada are shipped via USPS (United States Postal Service).