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ThermoTub® Heaters

Radiant Heating Pads for Bathtubs and Showers

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  • Controller handles up to 4 heaters
  • Speedy and efficient warm-up with integrated foil and foam insulation.
  • One touch control and adjustment for optimum customized comfort level.
  • Peel and stick installation with plug and play controls for fast install
  • Proven brand-name controls and outdoor-rated sensors
  • Hermetically sealed connections for reliable performance in wet areas
  • Made in the USA and UL listed

Bathtub Heaters

Select multiple sizes and shapes to fit your backrests, armrests, and tub seats. Connect up to 2 heaters per control or up to 4 heaters per control with 2 ThermoSplitters. DO NOT EXCEED 4A (96W) PER CONTROL.Contact us for project assistance.

ItemSizePowerPriceQty
BTH0212-2012" x 12"0.2A
5W
$98.37$42.30
BTH0312-2013" x 12"0.3A
7W
$101.86$43.80
BTH0316-2013" x 16"0.5A
12W
$142.56$61.30
BTH0412-2014" x 12"0.5A
12W
$140.00$60.20
BTH0608-2016" x 8"0.5A
12W
$142.56$61.30
BTH0612-2016" x 12"0.7A
17W
$158.84$68.30
BTH0616-2016" x 16"1.0A
24W
$180.47$77.60
BTH0812-2018" x 12"1.0A
24W
$176.28$75.80
BTH0816-2018" x 16"1.4A
34W
$198.14$85.20
BTH0912-2019" x 12"1.2A
29W
$184.19$79.20
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Controllers & Sensors

ThermoTub accessories and controllers make installation and operation easy. Rapid warm-up, one-touch temperature maintenance, 30 minute automatic shutoff, and energy-saving settings reduce operating costs.

BTCK-12024
Tub Heating Controller Kit
BTCK-12024

Comes with ThermoSplitter and Soft Touch LED Keypad.

$162.20
BTH-KPD
Soft Touch LED Keypad
BTH-KPD

One keypad for on/off operation. Choose from white or silver.

$9.00
BTH-SPL
ThermoSplitter
BTH-SPL

Connect multiple heaters easily.

$5.30
TubTape
TubTape
TubTape

Easily tape seams and edges with special cloth tape.

$2.90

How To Install ThermoTub Pad?

This overview does not substitute for a full reading of the Installation Manual.

ThermoTub is designed for quick and easy installation in the field or factory. Whether you are a do-it-yourselfer or a professional installer, ThermoTub can be installed in as little as 10 steps as illustrated below. Just be sure to follow the detailed instroctuions provided with every order and local codes.

    1Provide 120V GFCI circuit with access.
    2Clean surface of tub.
    3Peel off release paper and position heater.
    4Attach control to tub frame.
    5Use mounting tabs to secure control.
    6Or attach control to 2x4 secured to floor, or between alcove studs (see last photo).
    7Connect keypad cord to keypad.
    8Peel release paper from underside of keypad.
    9Press keypad into hole drilled in tub, wall, or extension shelf.
    10Remove release paper, press decal on keypad.
    11Snap keypad ring over keypad.
    12Apply silicone seal around keypad.
    13Make all connections.
    14Connect heater(s) to control.
    15Plug control into 120V GFCI circuit.

    ThermoTub Documents

    ThermoTub FAQ

    What is ThermoTub?
    ThermoTub is an adhesive heater that is applied to the back side of a bathtub, shower seat, or walk-in tub. By "back side", we mean the side that is not exposed to the water.Shop Now
    Is this a safe product to put in my home or business? What about EMF?
    Yes. All our heating solutions endure rigorous development and 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 ThermoTub with my tub material?
    ThermoTub can be used with most contemporary tub materials, but is not compatible with cast iron. You can use ThermoTub with acrylic or comparable materials including fiberglass, gel coated fiberglass, acrylic/fiberglass combinations or acrylic capped ABS. If you don't see your tub material listed, just give us a call and we can help you confirm that ThermoTub will fit with your application.Shop Now
    How do I install ThermoTub? How does it all get connected?
    ThermoTub has an adhesive layer built in that adheres to the surface of the back side of the tub. The adhesive pads have easy connectors that link to a controller which is then plugged in to a standard GFCI 120-volt outlet or hard wired through a junction box. Check out our install section and full installation manual for more details on this.Shop Now
    Will this be visible?
    The ThermoTub heaters will be completely invisible. The only visible component for a standard installation is the single button controller.Shop Now
    Can I combine more than one heater to fit my tub?
    Yes. Up to 4 heaters can be placed on a single controller, which is sufficient for most applications. You can utilize multiple controllers if needed. Keep in mind each heater has an assigned wattage output rating. A single controller can handle up to 96 watts, so consider your wattage total when combining heaters.Shop Now
    Can I cut, shorten, or reshape the heaters?
    No, you cannot cut or puncture the heaters. If you do not see a size and shape that fits with your application, call us and we can discuss custom sizing with you.Shop Now
    Can I shorten the cables?
    No, the wiring that extends from the controllers to connect to the heaters has special connectors and therefore cannot be shortened.Shop Now
    How much will it cost to run this system?
    The cost to operate is dependent on how much area (and therefore wattage) of heater that you have, how frequently you use your heaters, and your local electrical rates. Operation cost is impossible to estimate accurately here, but feel free to give us a call to discuss! Keep in mind that as a controller handles up to 96 watts, the cost to operate can be likened to a 100 watt lightbulb that is lit infrequently.Shop Now
    How hot does ThermoTub get?
    The temperature that is reached by ThermoTub is dependent on the ambient temperatures of the room. The controller allows the user to stop the heat-up at a given level and maintain a temperature for 30 minutes. The system shuts off after 30 minutes for safety, but can be reinitiated.Shop Now
    How long will ThermoTub last? How long is the warranty?
    ThermoTub has a 3 year warranty on the heating pads, and the controllers have a 2 year warranty.Shop Now
    I'm still confused.
    Then call us, email us, or message us through our website! Shop Now

    Our Commitment to You

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    Supported by Real People

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

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    Priority 1: Making You Happy

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

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    Industry-Best Value

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

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    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.

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    Understanding Your Needs

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

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    Persistent Integrity

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