10 Best Under Tile Heating System 2026 in the United States

The Ditra-Heat Electric Floor Warming Kit is designed primarily for indoor use beneath ceramic or stone tiles. It includes a heating cable that covers 37.5 square feet, paired with an uncoupling membrane to cover a larger area (60.3 sq. ft.). This setup provides radiant heat, which is effective and evenly distributed. The system runs on 120 volts, making it suitable for most standard home electrical setups.

One of its highlights is the programmable touchscreen thermostat, which allows you to set up to six heating periods per day, helping manage comfort and energy use effectively. This can lead to better energy efficiency compared to simpler controls. Installation height is kept minimal since the membrane doubles as uncoupling and heating layers. The product is well-suited for bedrooms, home offices, and living rooms, offering a cozy warmth underfoot.

The kit has a limited coverage area per heating cable—only 37.5 sq. ft.—which means larger rooms may need multiple kits, increasing cost and installation complexity. Also, it is designed mainly for indoor use and tiled floors, so it’s not suitable for carpet or hardwood. This kit is a solid choice for homeowners looking for a straightforward, programmable under-tile heating solution for small to medium-sized rooms, but those needing to cover larger areas should consider the added expense and planning.

The LuxHeat 25sqft Electric Radiant Floor Heating System offers a convenient way to add warmth and comfort under tile floors in rooms like bathrooms, kitchens, basements, or living spaces. It uses electric heating cables built into a special uncoupling membrane, which not only heats the floor but also helps prevent tile cracks and protects against moisture – a useful bonus for tile installations. The system delivers 300 watts of heat across 25 square feet, providing efficient and even warmth. Installation requires covering the cables with a leveling compound or thinset, and the membrane adds about 0.26 inches in height, so you’ll want to plan for that in your flooring setup.

Control is a strong point here – the kit includes a programmable touchscreen thermostat with safety features like a ground fault interrupter, dual sensors that measure both air and floor temperature, and a child lock. You can customize heating schedules to save energy and keep costs down. The system is designed for indoor use only and is safe for wet environments, even showers.

It’s backed by a solid warranty: 25 years on the heating system and an impressive 50 years on the membrane, plus responsive customer support, which adds peace of mind if you run into any issues. On the downside, the heater cable cannot be cut or shortened, which means the layout must fit your space as-is. Also, while the system is energy-efficient with programmable controls, running electric floor heating can increase your power bill, so it's best suited for targeted heating rather than whole-house use. If you want a reliable, well-supported under-tile heating solution with easy temperature control and long-term durability, LuxHeat is a strong option to consider.

The SunTouch ConnectPlus TapeMat is an electric under-tile heating system designed to warm floors in spaces like bathrooms, kitchens, or entryways. It uses a thin heating mat that can be embedded under tile, stone, vinyl, or laminate flooring, adding only about 1/8 inch to the floor height, making it suitable for most renovations without major changes. The mat covers 30 square feet and is customizable by cutting, which helps fit around irregular spaces.

This system includes a smart, Wi-Fi-enabled thermostat with voice control through Alexa or Google Assistant, allowing you to adjust settings remotely via an app or voice commands. It offers programmable temperature control and tracks energy use to help manage electricity consumption efficiently. The installation process is simplified thanks to the included floor sensor and adhesive tape for quick setup.

The heating mat operates on 120V, making it ideal for small to medium areas, though it may not be as effective for very large spaces where higher voltage systems are preferred. Installation requires embedding the mat in thin-set mortar, which might require professional assistance if you are unfamiliar with floor work. This kit is a reliable and easy-to-control under-tile heating solution that integrates well with smart home devices and comes from a reputable brand with over 30 years of experience.