ThermoTile® Electric In-Floor Heating Mats

Radiant Heat for Any Floor Type When Embedded in Cement or Mortar

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  • Easy DIY install: Single 10' lead, 18" heating width, and easy cut & turn feature designed for tight spaces
  • Durable antifracture fiberglass mesh engineered to keep cable flat and strenghten floor
  • 3/16" thin for minimal added floor height
  • 12 W/ft² heat output with zero EMF
  • Made in USA & UL Listed

Floor Heating Mats

Combine mats as needed to fit open walkable space, avoiding areas covered by cabinets, vanities or other permanent fixtures. The heating mats can be reshaped but cannot be shortened, so avoid over-filling. Each mat will connect to the thermostat, so larger mats will reduce required connections. On a sole thermostat, 120V mats cover up to 150 ft²; 240V mats cover up to 300 ft². DO NOT MIX VOLTAGES.Contact us for project assistance.

TT5-1207.5 ft²
1.5' x 5.0'
TT7-12010.5 ft²
1.5' x 7.0'
TT10-12015 ft²
1.5' x 10.0'
TT15-12022.5 ft²
1.5' x 15.0'
TT20-12030 ft²
1.5' x 20.0'
TT30-12045 ft²
1.5' x 30.0'
TT40-12060 ft²
1.5' x 40.0'
TT50-12075 ft²
1.5' x 50.0'
TT60-12090 ft²
1.5' x 60.0'
TT70-120105 ft²
1.5' x 70.0'
Learn more about CR5MM-2448X5CeraZorb synthetic cork underlayment is specially designed for tile floors and recommended for installation of ThermoTile mats and cable.
CeraZorb (4 sheets)

Synthetic cork underlayment (24" x 48" x 3/16")


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. Contact an expert for guidance.

Learn more about UWG4-4999The OJ WiFi enabled touch screen thermostats are the latest, most cutting-edge option in heating controls.
Wi-Fi & Touch
Learn more about UWG5-4999OJ Smart Thermostats integrate with all home assistants and can be controlled easily from an app.
WiFi LED Touch
Learn more about UDG4-4999OJ Touch Screen thermostats have intuitive interfaces for stress-free operation and control of your heating systems in classic white color.
Touch Screen
Learn more about UDG4-4999-N4OJ Touch Screen thermostats have easy and intuitive interfaces for stress-free operation and control of your heating systems in the sleek black color.
Touch Screen - Black
Learn more about TH115-AF-GA/UAube Standard Programable thermostats allow for extensive programmability of 120- or 240-volt heating systems.
Learn more about UDG-4999OJ Advanced Programable thermostats allow for extensive programmability of heating systems and calendar scheduling.
Learn more about AC112-01/UA backup temperature sensor is recommended to be installed with the system in the event of a future sensor failure
Backup Sensor

Avoid future replacement headaches (15'). Include 1 per thermostat.

Learn more about IK-CONA thermostat installation kit makes installation of heating systems easy. Get everything you need in one simple kit and save time and money.
Mounting Kit

2-Gang electrical box, conduit & connectors. Include 1 per thermostat.


Electrical Accessories

Learn more about INSTALRMInstAlarm cable fault finder is recommended to ensure no damage is done to the heating element before, during, and after installation.

Monitor mats for faults during install

Learn more about MULTIMTRA digital multimeter is recommended to measure the heath of mats and cables during installation.

Verify resistance before/after install

Learn more about Fidbox-EMSWhen systems are installed under engineered and solid wood floors, a Fidbox is recommended to monitor humidity levels and to maintain the integrity of wood floors.

In-floor temp & humidity monitor.

Learn more about USG-4000The OJ power module is recommended when multiple mats exceed amp allowances and must be connected to a single thermostat.
OJ Power Module

Doubles the capacity of 1 thermostat

Learn more about EK-X10B-120Add 10 feet of 120 Volt grounded lead power extension to the factory-attached leads on our ThermoSoft floor heating systems.
10' Lead (120V)

10' lead extension for ThermoTile 120V

Learn more about EK-X20B-120Add 20 feet 120 Volt grounded lead power extension to the factory-attached leads on our ThermoSoft floor heating systems.
20' Lead (120V)

20' lead extension for ThermoTile 120V

Learn more about EK-X10B-240Add 10 feet of 240 Volt grounded lead power extension to the factory-attached leads on our ThermoSoft floor heating systems.
10' Lead (240V)

10' lead extension for ThermoTile 240V

Learn more about EK-X20B-240Add a 20 feet 240 Volt grounded lead power extension to a 240 Volt heating system’s pre-attached lead wire.
20' Lead (240V)

20' lead extension for ThermoTile 240V


Tools & Kits

Learn more about IK-TAMKGSMake your life easier, save time, analtd save money by getting the ThermoTile Deluxe Kit which includes tools you will need for your installation such as an InstAlarm cable fault finder, plastic trowel, digital multimeter, foam kneepads, glue gun and glue sticks.
Deluxe Install Kit

Save 20% over buying separately

Learn more about IK-TAMMake your life easier, save time, and save money by getting the ThermoTile Advanced Kit which includes tools you will need for your installation such as an InstAlarm cable fault finder, plastic trowel, and digital multimeter.
Safe Install Kit

Save 15% over buying separately

Learn more about IK-TAMake your life easier, save time, and save money by getting the ThermoTile Basic Kit which includes tools you will need for your installation, such as an InstAlarm cable fault finder and plastic trowel.
Basic Install Kit

Save 9% over buying separately

Learn more about TRWL3838ThermoTile cable and mat installations require a plastic trowel for gentle mortar coverage over the heating elements.
3/8" Notch Trowel

Plastic trowel prevents accidental cable nicks

Learn more about TRWL3812ThermoSoft recommends a heavy-duty plastic trowel for gentle mortar coverage when installing ThermoTile cable and mats, so as not to nick or damage the heating element.
1/2" Notch Trowel

Plastic trowel prevents accidental cable nicks

Learn more about KNPD-318Installation of heating systems may be taxing on the installer’s knees. Avoid aches, pains, and damage to the heating mat with kneepads while protecting the heating element of your system.
Foam Kneepads

Protect the heat wires

Learn more about DT-17860Duct tape is recommended for positioning mats in parallel during installation and keeping them completely flat.
Duct Tape

1-7/8" wide, 60 yards long

Learn more about GG-40120ThermoSoft select heating products can easily be secured in place using a hot glue gun and glue sticks.
Glue Gun

Simplifies and speeds up install

Learn more about GS-11200ThermoSoft’s select heating systems can easily be secured in place using hot glue and a hot glue gun.
Glue Sticks (5 pcs)

Extra glue sticks

Learn more about TS38-0248ThermoSoft recommends ThermoStrips for controlled, even mortar and cement application when installing embedded heating systems.
Edge Strips (12 pcs)

Use as barrier for self-leveling cement

Learn more about BBB013Make tiling over embedded heating systems like ThermoTile cable and mats faster and easier with the Back Butter Buddy.
Back Butter Buddy

Used with tile install


How To Install ThermoTile Heating Mats

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:

  • Ensure that you have a structurally sound subfloor.
  • Confirm that your mortar or thinset cement is comaptible with your subfloor type.
  • Choose a starting point for the beginning of the heating mat(s), we suggest beginning near the planned placement of the thermostat.
1Make sure you have the right amount of material.
Floor heating with ThermoTile Mats. Installation is fast and easy with the heating cable on mesh mats. Step one is to make sure you have the right amount of material.
  • The mats should cover the entire floor space.
  • Follow heating cable spacing from walls and studs 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 the conduit(s) and gangbox for the addition of the floor heating thermostat.
Floor heating with ThermoTile Mats. Installation is fast and easy with the heating cable on mesh mats. Step two Is to prepare the conduits and gangbox for the addition of the floor heating thermostat.
  • 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.
3Lay out the mats to cover your heated area.
Floor heating with ThermoTile Mats. Installation is fast and easy with the heating cable on mesh mats. Step three is to lay out the mats to cover your heated area.
  • Cut the mesh to turn the mat and fit your room shape
  • Stay 3 inches off walls and 4-6 inches from toilet rings.
  • DO NOT cut the heating wire. To fit tight spaces, heating cable can be separated from the mesh and positioned 'loosely'.
4Position your floor temperature sensor and your backup sensor evenly between 2 heating elements.
Floor heating with ThermoTile Mats. Installation is fast and easy with the heating cable on mesh mats. Step four is to position your floor temperature sensor and your backup sensor evenly between two heating elements.
  • Place sensors close to the planned location of the thermostat, as the floor sensor is wired directly to the thermostat.
  • Weave the senor in the mesh so that the plastic end of the sensor is equally spaced between two heating elements.
  • If you did not order a backup floor sensor, we highly recommend ordering one now before the floor is installed.
5Spread thinset mortar or self-leveling cement over ThermoTile Mat(s).
Floor heating with ThermoTile Mats. Step five is to spread thinset mortar or self-leveling cement over ThermoTile mats.
  • Use a plastic trowel if spreading mortar for tile or stone floors.
  • Use an appropriate self-leveler if planning a carpet, laminate, wood, or vinyl installation.
6Lay tile and grout as normal.
Floor heating with ThermoTile Mats. Step six is to lay tile and grout as normal.
  • Take extreme care not to allow a sharp tool to damage your heating system. These final 2 steps are the most common instances of accidental damage to the heating cable or other wiring.

ThermoTile Mats Documents

ThermoTile Mats FAQ

What are ThermoTile mats?
ThermoTile Mats are the main heating component of a complete electric in-floor heating system for tile, stone and other floor coverings. ThermoTile is available as either a mat system or loose cable. In either form, ThermoTile uses FiberThermic heating elements, or high-quality heat cables to apply gentle radiant heat to your flooring. In loose cable, ThermoTile give you the greatest flexibility by arranging in any pattern with either FixFast strips or an uncoupling membrane. As a ThermoTile mat, your project is even easier to lay out because we have spaced and arranged the cable for you, and your floor is strengthened by the fiberglass mesh used to create our mat! Shop Now
Are ThermoTile mats safe for my home or business? What about Electromagnetic Field (EMF)?
Yes. All our floor heating solutions endure rigorous development and quality control testing in our US manufacturing center to ensure that your floor heating system is reliable and safe. Due to the shielding used in ThermoSoft products, our radiant heat systems add virtually zero EMF.Shop Now
Can I use ThermoTile with my floor material?
ThermoTile is one of our most universally applicable floor heating systems. Obviously, it is most frequently used under tile, because it uses a fiberglass mesh to add strength and durability to a tile floor installation. This doesn’t mean it is only for tile, as ThermoTile can be embedded in a thin-set or self-levelling cement and laid under almost any material. Almost any floor covering you would like to heat can be heated by ThermoTile, just keep in mind that for materials like wood, vinyl, or laminate, we might have an easier-to-install system available rather than ThermoTileShop Now
How do I install ThermoTile mats? How does it all get connected?
ThermoTile is embedded in mortar or self-levelling cement under your chosen floor material. Just have an electrician make final connections to the thermostat and to your home’s electrical system. Explore our installation guides and resources for more information! ThermoTile mats or cables are then wired to a floor heating thermostat wired in parallel. The number of mats and layout of the room will affect the exact process of how to wire things together. Please see the full ThermoTile Installation Guidelines for explicit directions.Shop Now
Will ThermoTile mats add height to my floor?
No, tile installation projects will not see any added floor height. However, if you are deciding to apply ThermoTile under a vinyl floor, for example, the need for self-levelling cement poured over the heating mats will cause an addition to the floor height that you would need to plan around. Remember, ThermoSoft does offer ThermoFloor and WarmStep as options that do not need to be embedded in cement to be installed under a wood, vinyl, or laminate floor. Shop Now
Can I combine more than one ThermoTile mat to fit a space?
Many projects involve using more than one mat or cable, but this means that multiple mats are wired in parallel to the thermostat. The thing to remember is that you are not daisy-chaining cables or extending the mats, but rather the mats are working together to cover the appropriate square footage.Shop Now
Can I cut, shorten, or reshape the system?
Yes, not really (no cutting heating elements!), and yes. The fiberglass mesh that is used in ThermoTile mats is meant to be cut in order to reshape the mats in a “cut and turn” method. You CANNOT cut the heating wire as this will alter the performance of the heating element and void your warranty. This “cut and turn” method might end up effectively shortening the mat system and depending on the number of mesh cuts and turns, you may “shrink” the coverage area of loose cable. However, and we know we sound like a broken record here, but you CANNOT cut the heating elements and maintain performance and warranty coverage. The best answer to the questions about cutting, shortening, and reshaping ThermoTile? Just give us a call so we can match the right size mat or length of cable to suit your needs! Shop Now
Can I shorten the lead wires?
The lead wires, also known as cold leads because they do not produce heat, can be cut, shortened, or spliced with additional cable to lengthen them.Shop Now
What do I do with areas not covered by the heating system?
ThermoTile mats or cable allows for almost complete coverage of most room sizes and shapes because of the flexibility of arranging loose cable or cutting and turning the mat system. However, almost every project will result in some areas that are not heated. This is entirely normal, and any competent floor installer will be able to achieve a fully level bed of mortar or self-levelling compound throughout the heated and non-heated areas.Shop Now
Is this mesh on ThermoTile mats something that I really want in my floor?
We see a lot of our competitors use mesh that is just barely “good enough” to achieve a mat layout. That wasn’t something that we were comfortable doing, so we selected a high quality, exceptionally strong, anti-fracture fiberglass mesh that adds strength and durability to your floor. As always, consult with a qualified building professional in your area to make your decisions about your building materials, but we are confident they will be satisfied with the components of ThermoTile.Shop Now
How many watts per square foot does ThermoTile output?
This figure can vary if the cable spacing deviates from the 3 inches on center spacing, but the standard output is about 12 watts per square foot.Shop Now
How much will it cost to run this system?
The cost to operate is a complicated question to answer, as electrical rates vary by area, and even by time of day. Additionally, a cost-to-operate is further complicated because the money spent on your radiant heat can result in a net savings on total utilities cost due to reduced use of your traditional HVAC, which is added to by the fact that you will spend less on HVAC system maintenance by relying on electric radiant heat. So, keeping in mind the nuances of describing the operating costs of an electric radiant heat system, we recommend talking to one of our experts about the operating cost of your individual project.Shop Now
How hot does ThermoTile get?
Sometimes, we like to answer a question with a follow-up question. Usually, we are asked about “how hot” a system gets for a couple of reasons, so it is important to respond with: Why do you ask? Are you concerned about providing enough heat to adequately warm your space? If so, a properly installed ThermoTile can provide about 10-15 degrees Fahrenheit of temperature difference above the ambient temperature of the room. In practice, this is more than enough, even in extremely cold climates. We are positive that you will be entirely satisfied with the heat produced by ThermoTile. Are you concerned about applying too much heat to your chosen floor material? If so, fear not! ThermoTile is designed to have a gentle, reliable, and consistent delivery of heat to your floor material. ThermoTile in either mat or cable configuration is most frequently applied under tile, which is a floor material that can handle a high variation in temperatures. If you are heating a more temperature sensitive floor material, you can ensure a healthy floor with appropriate use of your thermostat. Just give us a call if you need some guidance. Lastly, we highly recommend choosing a thermostat that includes a temperature limiter if this is one of your concerns!Shop Now
How long will ThermoTile last? How long is the warranty for ThermoTile mats?
ThermoTile requires no regular maintenance once installed correctly and if left undisturbed (remember your radiant system is down there when planning a remodel!). ThermoTile mats and cable have a lifetime limited warranty and we have yet to see a mat fail due to old age. The thermostats that we offer are warrantied for 3 years because we only use thermostats with GFCI protection which, per national electric code, should be replaced every 3 years. Replacing a thermostat is simple, easy, and inexpensive.Shop Now
I’m still confused about ThermoTile mats.
Then call us, email us, or message us through our website!Shop Now

Features of ThermoTile Mats

  • Made in the USA
  • Designed to minimize time and labor
  • UL Listed in the U.S. and Canada
  • Zero EMF
  • Compatible with all floor coverings
  • Floor heating adds comfort and property values
  • Tough to withstand installation
  • Pair with insulation for faster heat-up
  • Designed for life
  • Smart when combined with a WiFi thermostat
  • Backed by a Lifetime Warranty

Our Commitment to You

ThermoSoft technical support is available with live electric radiant heating experts. They are ready to take your call now! Call (800)308-8057 for more information or help with your in-floor heating, snow melting, bathtub heating, or soil heating project.
Supported by Real People

We know that being the best doesn’t just mean superior products, it means backing them up with superior service.

ThermoSoft electric radiant heat is dedicated to providing exceptional technical support and superior electric radiant heating products to its electric radiant heating client family.
Priority 1: Making You Happy

Creating joy and comfort with our heat applications is our primary motivation.

ThermoSoft has been an industry titan since 1996 and continues to lead the way in the electric radiant heating industry due to its relentless pledge to quality products at a reasonable price.
Industry-Best Value

American-made quality, easy installation, and safe operation. All competitively priced for the best value in radiant heating.

ThermoSoft electric radiant heating products utilize exclusive technology developed by ThermoSoft. FiberThermics are ThermoSoft’s patented safety feature that provides reliability AND magnificent comfort, made in the USA.
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.

The ThermoSoft electric radiant heat team works diligently to ensure your satisfaction. By understanding your needs, ThermoSoft electric radiant heating can help serve you better.
Understanding Your Needs

ThermoSoft is the best partner for your project because we know when to listen, and when to offer guidance.

By providing safety, reliability, and support, ThermoSoft electric radiant heating is pledging its commitment to you. Backed by industry-leading warranties, ThermoSoft electric radiant heating’s integrity is what sets it apart from the rest.
Persistent Integrity

Our reputation is one of our best assets. We developed that reputation by delivering on every promise.