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ThermoFloor® Floor Heating Underlayment Mats

ThermoFloor® electric heated floor underlayment mats combine radiant floor heat, thermal insulation and sound reduction in one low profile system. Designed for floating and glue down floor installations, ThermoFloor helps add comfortable warmth while reducing the need for separate underlayment and helps with moisture control under flooring.
Electric radiant heating mats under wood floors
Warmer floor with electric radiant heating mats for wood, laminate and vinyl floors
Complete Thermofloor system for electric radiant heating of wood, laminate and vinyl floors
Multiple sized mats for electric radiant heating of wood, laminate and vinyl floors
Electric radiant heating mats under wood, laminate and vinyl floors
Layout for electric radiant heating mats for wood, laminate and vinyl floors
Electric radiant heating mats under wood floors
Warmer floor with electric radiant heating mats for wood, laminate and vinyl floors
Complete Thermofloor system for electric radiant heating of wood, laminate and vinyl floors
Multiple sized mats for electric radiant heating of wood, laminate and vinyl floors
Electric radiant heating mats under wood, laminate and vinyl floors
Layout for electric radiant heating mats for wood, laminate and vinyl floors
  • Electric In-Floor All-In-One Underlayment
  • Constructed with underlayment pad
  • 8-10 W/ft² output perfect for wood, vinyl, or laminate floors
  • FiberThermics® heating elements with Thermal Cut-Off for increased safety
  • 1/8" total system thickness, equal to blank padding
  • Made in USA & ETL Listed

Floating floors are becoming more common and desirable because of their ease of installation, padded underlayment, time and material savings. ThermoSoft created ThermoFloor to make the addition of radiant heat to your floating floor installation project easier than ever. ThermoFloor is a 4-in-1 (heating, insulating, noise reducing, moisture abating) radiant heating system designed for laminate, glue-down and floating hardwood and engineered wood floors. No cement needed! Enjoy the patented safety of FiberThermics heating technology and high-quality multi-functional underlayment padding in this all-in-one American-made solution.

Installation Guide

Warranty

Spec Sheet

FidBox Manual

What is ThermoFloor?
ThermoFloor is an all-in-one underlayment and heating system mat, providing sound and impact dampening, moisture abatement, insulation from the subfloor, and gentle radiant heat to the floor covering and room above the heat system. ThermoFloor replaces the need for a standard underlayment pad, but non-heated areas are filled in with plain underlayment padding, which we can provide with your order. ThermoFloor uses patented FiberThermic heating elements to provide the absolute safest radiant heat in your home, and is the best radiant heat system to pair with your floating floors.
Is this a safe product to put in my home or business?
Yes. All our floor heating solutions endure rigorous development and quality control testing to ensure that your floor heating system is reliable and safe. Additionally, ThermoFloor uses a heating element made from FiberThermics, which is a non-combustible material that further eliminates the risks from overheating that some associate with electrical heating components.
Can I use ThermoFloor with my floor material? What if my project uses an underlayment?
ThermoFloor is compatible with a wide variety of floor materials including wood, laminate, vinyl, and carpet. There are certain considerations that you will want to make in order to ensure that ThermoFloor is a good fit. One important point is that your laminate or vinyl floor should be above 6.5 mm thick in order to prevent telescoping -- which is a process in which the heating elements are “visible” due to a very flexible floor material. Beyond that, most floors approved for floating installation can be installed over ThermoFloor. Give us a call to get a specific consultation today! ThermoFloor is compatible with most any underlayment you would use in an installation, including a pre-attached underlayment like some vinyl floors have.
How do I install ThermoFloor? How does it all get connected?
ThermoFloor functions as an all-in-one underlayment pad and heating system, and your chosen flooring material floats directly over ThermoFloor. Be sure to read the Installation Guidelines before beginning an installation and take advantage of our customer support to help clarify any questions you might have. ThermoFloor mats are then wired to a floor heating thermostat in parallel. The number of mats and layout of the room will affect the exact process of how to wire mats together. Please see the Installation Manual for explicit directions or give us a call anytime.
Will this add height to my floor?
No, ThermoFloor is designed to replace a standard underlayment padding, and therefore will not add height to a floor in relation to a standard installation with non-heated underlayment.
Can I combine more than one ThermoFloor Mat to fit a space?
Most projects involve using more than one mat, but this means that multiple mats are wired in parallel to the thermostat. The thing to remember is that you are not daisy-chaining mats or extending the mats, but rather the mats are working together to cover the appropriate square footage.
Can I cut, shorten, or reshape the system?
We do not warranty mats that are cut, shortened, reshaped, or similarly altered in the field. If you think that you will need to do so, we highly encourage you to call us in order to get some assistance with planning your room layout, or otherwise resolve the situation.
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.
What do I do with areas not covered by heating system?
Just fill in those areas with blank (non-heated) underlayment padding! We can provide you with extra underlayment padding that matches the pad used in ThermoFloor to fill in your non-heated areas. Almost every project has a need for filling in some areas with blank padding. Keep in mind, the heating system itself is extremely low profile, so once installed, there will be no height difference between floor material over heated and non-heated areas.
Is the pad used in ThermoFloor any good?
Yes! The underlayment pad that is used in ThermoFloor is one of the best choices you could possibly make for your floating floor. We only use the best components in any of our systems, and the padding used in ThermoFloor is no different, providing superb sound, moisture, and impact control to a floating floor. Click here to see the specifications of the pad itself. We also offer blank padding for your convenience to fill in non-heated areas!
How many watts per square foot does ThermoFloor output?
ThermoFloor produces 8-10 watts per square foot of heating.
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, insulation of your home, 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 give us a call so we can discuss your applications operating costs.
How hot does ThermoFloor 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 understand why you ask? Are you concerned about providing enough heat to adequately warm your space? If so, a properly installed ThermoFloor 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 ThermoFloor. Are you concerned about applying too much heat to your chosen floor material? If so, fear not! ThermoFloor is designed to apply heat gently and evenly, due to the nature of the heating elements and the cable spacing pattern that it features. Additionally, because ThermoFloor is designed for flooring materials that might be temperature sensitive, the heat output for ThermoFloor is a reliable 8-10 watts per square foot, which is purposefully lower than what we deliver for tile floors that are not temperature sensitive. You will still enjoy plenty of power to achieve comfortable heat, but it will be a gentle warmup keeping your floors healthy and safe. Lastly, we highly recommend choosing a thermostat that includes a temperature limiter if this is one of your concerns!
How long will ThermoFloor last? How long is the warranty?
ThermoFloor requires no regular maintenance once installed correctly and if left undisturbed (remember your radiant system is down there when planning a remodel!). ThermoFloor heating mats are warrantied for 10 years, but after 17 years being on the market, we have yet to see a ThermoFloor 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, are recommended to be replaced every 3 years. Replacing a thermostat is simple, easy, and inexpensive.
Can ThermoSoft help with my WarmStep® Electric Floor Heating Mats layout?
Absolutely. Contact ThermoSoft's US experts for help choosing mat sizes, checking floor compatibility, and planning your WarmStep® Electric Floor Heating Mats layout before ordering.
1 Heating Mats
2 Thermostat
3 Accessories
4 Tools

Combine mats as needed to fit open walkable space, avoiding areas covered by cabinets, vanities or other permanent fixtures. The heating mats 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 200 ft²; 240V mats cover up to 400 ft². DO NOT MIX VOLTAGES. Contact us for project assistance or help finding a local dealer/installer.

Choose Voltage & Size:
Show 1 – 25 out of 33
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Clear all
Heating Mats
2 Thermostat
3 Accessories
4 Tools
Thermostat

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.

Choose Setting

Programmable

Manual

  • WiFi touchscreen thermostat for smart floor heating control
    OJ Wi-Fi Enabled Touch Screen Thermostat for Electric Radiant Floor Heating
    UWG4-4999
    $294.95 View
  • Smart WiFi and Bluetooth thermostat for radiant floor heating
    OJ WiFi LED Touch Thermostat for Electric Radiant Floor Heating
    UWG5-4999
    $229.95 View
  • Touchscreen programmable thermostat for floor heating control
    OJ Touch Screen Thermostat for Electric Radiant Floor Heating
    UDG4-4999
    $207.20 View
  • Touchscreen thermostat for radiant floor heating systems
    OJ Touch Screen Thermostat for Electric Radiant Floor Heating - Black Color
    UDG4-4999-N4
    $207.20 View
  • Programmable thermostat for heated floor temperature control
    Aube Dual Voltage Programmable Thermostat With GFCI for Electric Radiant Floor Heating Systems
    TH115-AF-GA/U
    $179.99 View
  • Advanced programmable thermostat for heated floors
    OJ Advanced Programmable Thermostat for Electric Radiant Floor Heating
    UDG-4999
    $160.95 View
  • Manual thermostat for electric radiant floor heating systems
    Aube 120/240V Manual Thermostat Controller for Electric Radiant Floor Heating Systems
    TH114-AF-GA/U
    $159.99 View
  • Simple manual thermostat for electric floor heating
    OJ Touch Thermostat with built-in GFCI for Electric Radiant Floor Heating
    UTN5-4999
    $159.95 View

    • Choose Other Components:

  • Floor heating temperature sensor probe for accurate in-floor temperature control
    Floor heating Temperature Backup Sensor - 15Ft.
    AC112-01/U
    $19.95 View
  • Thermostat conduit kit for electric floor heating installation with connectors
    Electric Floor Heating Thermostat Installation Conduit Kit
    IK-CON
    $44.95 View
    • Heating Mats
    Thermostat
    3 Accessories
    4 Tools
    Choose Accessories
  • Cable fault alarm monitor for electric floor heating installation
    InstAlarm Circuit Monitor for Electric Radiant Floor Heating Installation
    INSTALRM
    $24.95 View
  • Digital multimeter for testing electric floor heating systems
    Electric Radiant Floor Heating Digital Multimeter
    MULTIMTR
    $19.95 View
  • In-floor temperature and humidity monitoring device for radiant heating systems
    FidBox Moisture and Temp. Data Logger for Monitoring Electric Radiant Floor Heating
    Fidbox-EMS
    $225.00 View
  • Power module expansion for radiant floor heating thermostats
    Power Module Expansion for Electric Radiant Floor Heating Thermostats
    USG-4000
    $109.95 View
  • Connector block for linking multiple electric floor heating mats
    Wago Connector Block for Linking Multiple Electric Floor Heating Mats (4 pcs)
    FLX-BLOCK
    $4.95 View
    • Heating Mats
    Thermostat
    Accessories
    4 Tools
    Choose Tools
  • Protective kneepads for radiant floor heating installers
    Ultra-Light Kneepads For Electric Radiant Floor Heating Installations
    KNPD-318
    $5.95 View
  • Seam tape for connecting electric floor heating mats during installation
    Duct Tape 60 Yard Roll For Floor Heating Mats Installation
    DT-17860
    $5.95 View

    • This is the last step

    See your cart
    • Electric In-Floor All-In-One Underlayment
    • Constructed with underlayment pad
    • 8-10 W/ft² output perfect for wood, vinyl, or laminate floors
    • FiberThermics® heating elements with Thermal Cut-Off for increased safety
    • 1/8" total system thickness, equal to blank padding
    • Made in USA & ETL Listed

    Floating floors are becoming more common and desirable because of their ease of installation, padded underlayment, time and material savings. ThermoSoft created ThermoFloor to make the addition of radiant heat to your floating floor installation project easier than ever. ThermoFloor is a 4-in-1 (heating, insulating, noise reducing, moisture abating) radiant heating system designed for laminate, glue-down and floating hardwood and engineered wood floors. No cement needed! Enjoy the patented safety of FiberThermics heating technology and high-quality multi-functional underlayment padding in this all-in-one American-made solution.

    Installation Guide

    Warranty

    Spec Sheet

    FidBox Manual

    What is ThermoFloor?
    ThermoFloor is an all-in-one underlayment and heating system mat, providing sound and impact dampening, moisture abatement, insulation from the subfloor, and gentle radiant heat to the floor covering and room above the heat system. ThermoFloor replaces the need for a standard underlayment pad, but non-heated areas are filled in with plain underlayment padding, which we can provide with your order. ThermoFloor uses patented FiberThermic heating elements to provide the absolute safest radiant heat in your home, and is the best radiant heat system to pair with your floating floors.
    Is this a safe product to put in my home or business?
    Yes. All our floor heating solutions endure rigorous development and quality control testing to ensure that your floor heating system is reliable and safe. Additionally, ThermoFloor uses a heating element made from FiberThermics, which is a non-combustible material that further eliminates the risks from overheating that some associate with electrical heating components.
    Can I use ThermoFloor with my floor material? What if my project uses an underlayment?
    ThermoFloor is compatible with a wide variety of floor materials including wood, laminate, vinyl, and carpet. There are certain considerations that you will want to make in order to ensure that ThermoFloor is a good fit. One important point is that your laminate or vinyl floor should be above 6.5 mm thick in order to prevent telescoping -- which is a process in which the heating elements are “visible” due to a very flexible floor material. Beyond that, most floors approved for floating installation can be installed over ThermoFloor. Give us a call to get a specific consultation today! ThermoFloor is compatible with most any underlayment you would use in an installation, including a pre-attached underlayment like some vinyl floors have.
    How do I install ThermoFloor? How does it all get connected?
    ThermoFloor functions as an all-in-one underlayment pad and heating system, and your chosen flooring material floats directly over ThermoFloor. Be sure to read the Installation Guidelines before beginning an installation and take advantage of our customer support to help clarify any questions you might have. ThermoFloor mats are then wired to a floor heating thermostat in parallel. The number of mats and layout of the room will affect the exact process of how to wire mats together. Please see the Installation Manual for explicit directions or give us a call anytime.
    Will this add height to my floor?
    No, ThermoFloor is designed to replace a standard underlayment padding, and therefore will not add height to a floor in relation to a standard installation with non-heated underlayment.
    Can I combine more than one ThermoFloor Mat to fit a space?
    Most projects involve using more than one mat, but this means that multiple mats are wired in parallel to the thermostat. The thing to remember is that you are not daisy-chaining mats or extending the mats, but rather the mats are working together to cover the appropriate square footage.
    Can I cut, shorten, or reshape the system?
    We do not warranty mats that are cut, shortened, reshaped, or similarly altered in the field. If you think that you will need to do so, we highly encourage you to call us in order to get some assistance with planning your room layout, or otherwise resolve the situation.
    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.
    What do I do with areas not covered by heating system?
    Just fill in those areas with blank (non-heated) underlayment padding! We can provide you with extra underlayment padding that matches the pad used in ThermoFloor to fill in your non-heated areas. Almost every project has a need for filling in some areas with blank padding. Keep in mind, the heating system itself is extremely low profile, so once installed, there will be no height difference between floor material over heated and non-heated areas.
    Is the pad used in ThermoFloor any good?
    Yes! The underlayment pad that is used in ThermoFloor is one of the best choices you could possibly make for your floating floor. We only use the best components in any of our systems, and the padding used in ThermoFloor is no different, providing superb sound, moisture, and impact control to a floating floor. Click here to see the specifications of the pad itself. We also offer blank padding for your convenience to fill in non-heated areas!
    How many watts per square foot does ThermoFloor output?
    ThermoFloor produces 8-10 watts per square foot of heating.
    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, insulation of your home, 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 give us a call so we can discuss your applications operating costs.
    How hot does ThermoFloor 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 understand why you ask? Are you concerned about providing enough heat to adequately warm your space? If so, a properly installed ThermoFloor 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 ThermoFloor. Are you concerned about applying too much heat to your chosen floor material? If so, fear not! ThermoFloor is designed to apply heat gently and evenly, due to the nature of the heating elements and the cable spacing pattern that it features. Additionally, because ThermoFloor is designed for flooring materials that might be temperature sensitive, the heat output for ThermoFloor is a reliable 8-10 watts per square foot, which is purposefully lower than what we deliver for tile floors that are not temperature sensitive. You will still enjoy plenty of power to achieve comfortable heat, but it will be a gentle warmup keeping your floors healthy and safe. Lastly, we highly recommend choosing a thermostat that includes a temperature limiter if this is one of your concerns!
    How long will ThermoFloor last? How long is the warranty?
    ThermoFloor requires no regular maintenance once installed correctly and if left undisturbed (remember your radiant system is down there when planning a remodel!). ThermoFloor heating mats are warrantied for 10 years, but after 17 years being on the market, we have yet to see a ThermoFloor 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, are recommended to be replaced every 3 years. Replacing a thermostat is simple, easy, and inexpensive.
    Can ThermoSoft help with my WarmStep® Electric Floor Heating Mats layout?
    Absolutely. Contact ThermoSoft's US experts for help choosing mat sizes, checking floor compatibility, and planning your WarmStep® Electric Floor Heating Mats layout before ordering.