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ThermoTile® Cable and Prodeso® Heat Membrane

Electric In-Floor Heating for Tile

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  • Engineered for faster installation - most in a single day
  • Grooved paths hold ThermoTile cable in place
  • Maintained spacing between studs
  • Engineered with uncoupling and crack isolation
  • 7/32" profile designed for no added floor height
  • 10-year warranty

Floor 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 2 stud spacing on a sole thermostat, 120V cables cover up to 125 ft²; 240V cables cover up to 250 ft². DO NOT MIX VOLTAGES.Contact us for project assistance.

Cable spacing:
TTC28-1206 ft²
TTC39-1208.5 ft²
TTC56-12012 ft²
TTC95-12020 ft²
TTC123-12026 ft²
TTC228-12047.5 ft²
TTC290-12060.5 ft²
TTC345-12072 ft²
TTC412-12086 ft²
ThermoTile cable with Prodeso Membrane. Membrane is a great solution for heating tile and stone floors and comes with a 10-year warranty.
Prodeso Heat Membrane - 3'3" x 49'5"

Uncoupling membrane roll

ThermoTile cable with Prodeso Membrane. Membrane is a great solution for heating tile and stone floors and comes with a 10-year warranty.
Prodeso Heat Membrane - 3'3" x 24'7"

Uncoupling membrane roll

ThermoTile cable with Prodeso Membrane. Membrane is a great solution for heating tile and stone floors and comes with a 10-year warranty.
Prodeso Heat Membrane - 3'3" x 12'4"

Uncoupling membrane roll


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.

The OJ WiFi enabled touch screen thermostats are the latest, most cutting-edge option in heating controls.
Wi-Fi & Touch
Mysa Smart Thermostats integrate with all home assistants and can be controlled easily from an app.
OJ Touch Screen thermostats have intuitive interfaces for stress-free operation and control of your heating systems in classic white color.
Touch Screen
OJ 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
OJ Advanced Programable thermostats allow for extensive programmability of heating systems and calendar scheduling.
Aube Standard Programable thermostats allow for extensive programmability of 120- or 240-volt heating systems.
A 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.

A 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

InstAlarm 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

A digital multimeter is recommended to measure the heath of mats and cables during installation.

Verify resistance before/after install

When 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.

The 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

Add 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

Add 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

Add 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

Add 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

Make 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

Make 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

ThermoTile 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

ThermoSoft 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

Installation 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

Make 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 Cable With Prodeso Membrane

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 Manual or call us to go over a more detailed installation plan.

ThermoTile Cables are an easy way to add heat to a tile floor, and pairing them with an uncoupling membrane adds additional benefits to the structure of your floor.

Before beginning your installation:

  • Ensure that you have a structurally sound subfloor
  • Choose a starting point for the beginning of the membrane, we suggest beginning near the planned placement of the thermostat.
  • Conduct resistance tests on the heating cable before during and after the installation.
1Make sure you have the right amount of material.
  • The membrane 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 conduits and electrical boxes for thermostat 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.
3Spread thinset on subfloor and install membrane.
  • See your Prodeso® membrane manual for recommended trowel and type of thinset for your subfloor.
  • Membrane should cover entire floor.
  • Cut excess membrane to ensure floor is level.
4Position heating cable between the studs on the membrane.
  • Cut notch for lead wire.
  • See manual for approved cable spacing.
  • Pro tip-Push cable between studs with flat side of the trowel.
  • Make sure not to use a sharp metal trowel which could nick or damage the heating cable.
5Position sensors
  • Highly recommended to install a backup sensor.
  • Position sensor evenly between 2 heating cables.
  • Do not cross the heating cable.
6Thinset above using flat side of trowel to get embedded completely
  • Work in sections, covering entire membrane so you can continue installing membrane whether it’s wet or dry
  • Pack thinset into membrane grooves.
  • Make sure not to use a sharp metal trowel which could nick or damage the heating cable.
7Thinset above using flat side of trowel to get embedded completely
  • Make sure not to use a sharp metal trowel which could nick or damage the heating cable.
  • Consult National Tile Contractors Association (NTCA) for proper amount of thinset.
8Install Tile
  • Periodically lift edges to see if proper coverage is achieved.

ThermoTile Cable & Prodeso Membrane Documents

ThermoTile Cable & Prodeso FAQ

What is ThermoTile Cable?
ThermoTile Cable is a loose heating cable system designed for ceramic and stone tile installations. ThermoTile uses FiberThermic heating elements, or high quality heat cables to apply gentle radiant heat to your flooring. ThermoTile gives you the greatest flexibility by arranging in any pattern with an uncoupling membrane. Pairing loose cable with a Prodeso membrane gives you all the benefits of an uncoupling membrane and also makes the layout of your loose cable easy. Uncoupling membranes add stability to your tile floor. The studs in the Prodeso membrane give you a guide for spacing your loose Thermotile Cable.Shop Now
Is this a safe product to put in my home or business? What about Electromagnetic Field/EMF?
Yes. All our floor heating solutions endure rigorous development and in-house US quality control testing 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 Cable with my floor material?
ThermoTile cable with Prodeso membrane is only compatible with tile floors. If you are heating another type of floor, be sure to check out our floor materials pages that will give you guidance for selecting the right system for your floor covering.Shop Now
How do I install ThermoTile Cable? How does it all get connected?
ThermoTile Cable 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 Cables are wired to a floor heating thermostat in parallel. The number of cables and layout of the room will affect the exact process of how to wire things together. Please see the Installation Manual for explicit directions, or contact our experts for assistance.Shop Now
Will this add height to my floor?
Minimal, ThermoTile cable and Prodeso Membrane will add 1/4" to your already planned tiling project. 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 Cable to fit a space?
Many projects involve using more than one heating cable, but this means that multiple cables are wired in parallel to the thermostat. The thing to remember is that you are not daisy-chaining heating cables, but rather the cables are working together to cover the appropriate square footage of your heated area.Shop Now
Can I cut, shorten, or reshape the system?
You CANNOT cut the heating cable as this will damage the heating cable preventing it from heating up and void your warranty. In some applications, reducing the spacing used as you run the cable through the Prodeso membrane can allow you to fit a cable into a slightly smaller space than is our standard estimation. Consult with us or a qualified professional before deciding to pursue this method. If you need additional answers to the questions about cutting, shortening, and reshaping ThermoTile, just give us a call so we can match the right 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 cold lead cable to lengthen them.Shop Now
What do I do with areas not covered by heating system?
ThermoTile Cable allows for almost complete coverage of most room sizes and shapes because of the flexibility of arranging loose cable. However, almost every project will result in some areas that are not heated. This is perfectly normal, the Prodeso membrane is installed in both heated and non-heated areas resulting in a level floor throughout the entire space.Shop Now
Is this Prodeso membrane something that I really want in my floor?
Absolutely. Prodeso membrane paired with our superior heating cables adds a number of benefits to a standard tile floor. These benefits include but not limited to protecting your tile floors from cracking and simplifying the installationShop Now
How many watts per square foot does ThermoTile Cable output?
The standard output is about 12 watt per square foot at 3 inches average on center spacing. But his figure can vary if the cable spacing deviates.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, the home's insulation, 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, just contact us to discuss this as it would relate to your specific project.Shop Now
How hot does ThermoTile get?
Sometimes, we have 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 know why do you ask? Are you concerned about providing enough heat to adequately warm your space? If so, a properly installed ThermoTile Cable 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. 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 Cable last? How long is the warranty?
ThermoTile has a lifetime limited warranty and we have yet to see a ThermoTile Heating Cable fail due to old age. ThermoTile requires no regular maintenance once installed correctly and if left undisturbed (remember your radiant system is installed under your floor covering when planning a remodel!). The thermostats that we offer are warrantied for 3 years because we only use thermostats with GFCI protection which, per national electric code, is recommended to be replaced every 3 years. Replacing a thermostat is simple, easy, and inexpensive.Shop Now
I’m still confused.
Then call us, email us, or message us through our website! Our in house customer sevice experts will be happy to assist you.Shop Now

Features of ThermoTile Cable

  • Heating Cable Made in the USA
  • Cable tested by UL for use with Prodeso
  • UL Listed in the U.S. and Canada
  • Zero EMF
  • Floor heating adds comfort and property values
  • Tough to withstand installation
  • Designed for life
  • Smart when combined with a WiFi thermostat
  • Heating Cable 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.