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Radiant Heating Systems for a Marble, Stone, or Heated Tile Floor


Tile (and other similar surfaces like marble and stone) is a fantastic floor covering for a number of reasons such as its ease of maintenance and longevity but it does suffer from the fact that it is almost always uncomfortably chilly in the wintertime. An under tile floor heating system can help combat that by using tile's natural conductivity to help radiate warmth upwards into the solid objects in a room.

Our electric underfloor heating systems are available for use with almost any floor finishes, floor surfaces, or flooring materials including tile, stone, and marble. Any room in the home, from the kitchen to your bathroom flooring, can utilize our heating systems, providing comfort and helping turn your heated tile floor into unending source of comfort.

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Your Dream Remodel isn't Complete without a Heated Tile Floor

Cold mornings can be a challenge — the alarm clock rings, signaling that it's time to get out of your warm, cocoon-like bed, but you dread having to step foot onto the cold tile floor as you make your way to the shower. If your bathroom had a heated tile floor, wouldn't mornings be just a little easier to embrace?

With the installation of under tile floor heating, your heated tile floor will remain consistently comfortable day after day. Find the ideal solution to warm tile, marble, or stone floors with electric in-floor heating. Combine the beauty of tile and stone with the luxury of barefoot radiant comfort.

Our systems for under tile floor heating come in rolls, mats, or in cable that can be installed with either an uncoupling membrane or with fixing strips that can be glued to the subfloor or adhered with double sided tape. The heating elements are then embedded in self-leveling cement or thinset with the floor covering installed on top. We offer a wide variety of control and thermostat options for operating your heated tile floor system, ranging from a simple set-it-and-forget-it model to a WiFi enabled programmable thermostat with a touchscreen.

Under tile floor heating systems generate an even heat throughout your home and will not disturb dust, reducing the chance of possible allergic reactions. What's more, a heated tile floor will reduce noise levels and the amount of dry air in your home and is energy efficient.

WarmlyYours provides free design services to make sure that customers purchase the under tile floor heating system that best meets their project requirements. Depending on the floor type and the shape and size of a room's layout, the size and placement of heating mats will differ. Ensuring you have the right sized heating elements is the first step to achieving the perfect heated tile floor.

Consult with a Floor Heating Expert Do you need to discuss your project with our experts? fill in the form below and we will respond within 1 business day. Provide us your project details for a free no-obligation quote.


Our Floor Heating Systems

10% Off
TempZone Flex Roll Heating System Banner

Our most popular cut-and-turn roll for easy installation.


  • 25 Year Warranty
  • As low as $10 per sq. ft.
  • 15 Watts per sq. ft.
  • Available in 120/240 VAC
10% Off
TempZone Easy Mat Heating System Banner

Targeted heat coverage designed for small areas.


  • 25 Year Warranty
  • As low as $7 per sq. ft.
  • 15 Watts per sq. ft.
  • Available in 120 VAC
10% Off
TempZone Cable with Membrane Heating System Banner

Designed for maximum flexibility with easy installation.


  • 25 Year Warranty
  • As low as $6 per sq. ft. with Fixing Strips
  • As low as $9 per sq. ft. with Prodeso Membrane
  • 9-15 Watts per sq. ft.
  • Available in 120/240 VAC
PROExclusive
20% Off
TempZone Floor Heating Ruler Cable Prodeso and GripStrip Install

Pro-exclusive cable with measurement markings for a smooth installation.


  • 25 Year Warranty
  • Measurement markings at every half-inch, inch, and foot
  • Flexible and durable
  • 9-15 Watts per sq. ft.
  • Available in 120/240 VAC





Questions & Answers for Floor Heating under Tile

What voltage does WarmlyYours floor heating systems utilize?

The floor heating systems are offered in both 120 volt and 240 volt for the North American market. A 208 volt breaker panel can also accommodate our 240 volt floor heating system. It is important to note that the energy consumption will be the same: a 240 volt system will not cost more to operate than a 120 volt system. You are billed in kilowatts, and the 120 volt and 240 volt systems use the same amount of kilowatts. WarmlyYours often specifies a 120 volt system in smaller projects while a 240 volt system is typically recommended for larger projects (120 square feet of electric floor heating coverage or more). The benefit of switching to a 240 volt system is the reduction in amperage. Our programmable thermostat can control a radiant floor system up to 15 amps. The 120 volt system will reach 15 amps at 120 square feet of electric floor heating coverage. However, the 240 volt system will reach 15 amps at 240 square feet of electric floor heating coverage, allowing a much larger system to be connected to the thermostat. For installations over 240 square feet, a relay contactor or power modules are needed.

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How much does it cost to run an electric floor heating system?

The answer to this question will depend on a whole host of variables related to electric floor heating, including, but not limited to, the run time (for supplemental heating, we usually recommend between 4-8 hours per day), the electric radiant floor heating system you're using, the total square footage, and your local electrical cost. Typically, the cost is just a few cents a day. 

To figure out how much electric floor heating might cost to run for you, make sure to use our interactive Operating Cost Calculator. 

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Do I need insulation when installing an electric floor heating system over a concrete slab?

When WarmlyYours electric floor heating systems are being installed on a concrete slab, we strongly recommend adding a layer of insulation over the slab prior to installing the system. While our electric floor heating provides up to 25% more heating power per square foot than many of our competitors, the slab will always act as a "heat sink." Some of the heat that would otherwise be transferred to the flooring surface will remain in the slab, causing the floor’s surface temperature to be considerably lower. This is true with any electric radiant floor heating system.

When installed on top of a concrete slab without insulation, it is generally accepted that electric floor heating will take the chill away from the floor and provide a small amount of warmth. Adding insulation on top of the slab and beneath any electric radiant floor heating system will allow a greater percentage of the heat generated to transfer to the flooring surface. This results in greater efficiency and therefore faster warm up times, higher expected surface temperatures and lower energy usage. The floor will have the capacity to warm to a comfortable temperature, and in some cases can be employed as the primary heat source for that room.

The recommended types of insulation are natural cork, insulated tile backer boards and insulated underlayment, such as ThermalSheet™ synthetic cork.

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Can I use electric floor heating as a primary heat source?

Yes, in most cases, an electric floor heating system can be effective as a primary heat source. However, our TempZone™ and Environ™ systems are most commonly used as a secondary heat source, providing floor-to-ceiling radiant heat to any room in your home where you desire more warmth and comfort.

If you are considering electric floor heating for an addition to your home, such as a sunroom where you have no other source of heat, WarmlyYours offers an innovative online tool which calculates approximate heat loss. This tool can help you to determine if a WarmlyYours’ electric radiant floor heating system will provide your desired comfort temperature throughout the year. You can access the Heat Loss Calculator or you can call us at (800) 875-5285 and a Customer Service Representative will make the calculation for you.

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What is a good choice, or watt density, for supplemental heat?

Supplemental heat can be addressed by changing the spacing on cable installs. Floor location in the house is very important when considering adding supplemental heating to a floor. For example: If heating a second story floor, over a heated space, cable at 4" spacing can be used. The same type of heating over an unheated space would probably be done with TempZone Flex Rolls or TempZone Cable at 3" spacing. All heating is considered supplemental unless a heat loss calculation is done.

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Do I need to apply a layer of thinset over the subfloor first?

Yes, using a square-notch trowel (1/4” x 1/4” or larger), apply a layer of thinset to the subfloor area which will later be covered by the WarmlyYours TempZone™ Flex Roll, Easy Mat or Custom Mat.

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Is the TempZone™ floor heating system safe?

Yes. The WarmlyYours TempZone™ floor heating system has withstood rigorous safety testing by the Underwriter's Laboratory and has received UL listing for the U.S. as well cUL certification for Canada. WarmlyYours offers thermostats that carry the CSA Mark and the UL listing, which certifies that the product has been tested under extreme conditions and meets applicable standards for safety and/or performance in the U.S. and Canada. All WarmlyYours thermostats contain a Ground Fault Circuit Interrupter (GFCI) which provides fail-safe protection against an electrical shock.

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What is the warranty for the TempZone™ floor heating system? Do you warrant the cost of replacing the flooring installed on top of the system? What if there was a surge that damaged the system?

WarmlyYours’ 25-Year No Nonsense™ Warranty is the most comprehensive warranty in the industry. In the event of a defect, we cover not only the repair or replacement of the TempZone™ system, but ALSO any labor costs AND flooring materials required to perform the repair. We do not cover the cost of flooring that needs to be replaced in the event of a repair necessitated due to damage. If a product is damaged by a power surge, that would not be covered by our warranty

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I have too much / too little of the TempZone™ product for the space I want to heat. Can I trim or add more heating cable?

No. Never cut the heating cable. The floor heating cable is designed with a very specific resistance in order to consistently maintain heating at the chosen wattage per square foot. Trimming the heating cable would lower the resistance of the cable causing the system to overheat. Adding heating cable to the system would raise the resistance and the system would not heat properly.

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What is the typical operating cost of a TempZone™ floor heating system?

The actual cost of operating your floor heating system will vary depending upon a number of factors including the cost of electricity in your area and the length of time you run your system. The WarmlyYours TempZone™ Flex Roll electric floor heating system, for example, uses 15 watts per square foot. Based on a national average electricity rate of $.10/kW/hr, the approximate operating cost of an average bathroom using this system, measuring 8' x 10' would be between $.16 - $.21 cents a day. This cost is based on running your system a full 8 hours per day. Try our Operating Cost Calculator for a quick estimate.

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Is a filler needed on the rest of the floor to space the flooring up to the same level?

The TempZone™ twin conductor cable present in our TempZone™ products is comprised of a double-insulated, coaxial heating cable. The total thickness of the system can be between ⅛” and 5/32” thick and will not noticeably affect the height of your installed flooring. The heating system is encased in 3/8" of modified thinset or Self leveling underlayment. You simply use that 3/8" layer throughout the space, eliminating any need for fillers.

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What is the WarmlyYours TempZone™ floor heating system?

TempZone™ is an electric floor heating system that operates like an electric blanket for your floors. TempZone™ is covered in thin-set or Self-Leveling Underlayment, and is installed over the top of your subfloor and beneath your flooring. The system provides a warm, even temperature across your floor, generating floor-to-ceiling radiant warmth to transform these naturally cold surfaces into warm floors. Ideal for kitchens, bathrooms or any room in your home where you would enjoy radiant warmth and comfort, the TempZone™ floor heating system is easy to install, operate and maintain.

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Will the installation of a TempZone™ floor heating system affect the height of my floor?

The TempZone™ twin conductor cable present in our TempZone™ products is comprised of a double-insulated, coaxial heating cable. The total thickness of the system can be between ⅛” and 5/32” thick and will not noticeably affect the height of your installed flooring.

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