10 Best Under Tile Heating System 2026 in the United States

The LuxHeat 150 Sqft Mat Kit is an electric radiant floor heating system designed for use under tile, stone, and laminate floors. It uses 120-volt self-adhesive heating mats, providing efficient and even heat distribution across a 150 square foot area. The heating mats are easy to install due to their pre-spaced design and self-adhesive properties, although the heating wires must be embedded in a self-levelling underlayment, thinset, or mortar, which might require professional help for proper installation.

The kit includes a high-quality OJ Microline programmable thermostat with a built-in GFCI (ground fault protection) and a floor sensor, enhancing both safety and ease of use. The thermostat's 7-day program schedule and dual sensing capabilities (air/floor) allow for customized comfort and energy efficiency, though some users might find the programming process slightly complex at first. The system operates at a maximum power of 1800 watts and 15 amps, making it highly efficient.

Another significant benefit is the 25-year limited warranty on the heating mats, providing long-term performance assurance. Additionally, the product's low electromagnetic field (EMF) emissions and safety certifications (UL certified and safe for wet locations) further enhance its reliability. However, the initial cost and the potential need for professional installation could be considered drawbacks. This under-tile heating system is suitable for homeowners looking for a reliable and efficient way to add warmth to their floors, especially in bathrooms, kitchens, or other areas with tile or stone flooring.

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 WarmWire is an electric under-tile heating system designed to warm floors up to 100 square feet, making it suitable for bathrooms, kitchens, entryways, and similar spaces. It uses a 240-volt heating cable spaced at 3 inches to spread heat evenly beneath tile, stone, wood, or laminate floors. Installation is versatile, as it works over plywood, backer board, or concrete slabs, which covers most common floor bases. However, the cable cannot be cut, so careful layout planning around obstacles is necessary.

A key feature is the included SunStat CommandPlus Wi-Fi thermostat, which offers a touchscreen, voice control compatibility with Alexa and Google Assistant, and remote access through a smartphone app. This allows for convenient and energy-efficient temperature adjustment, helping save on heating costs. The thermostat also monitors energy use and electrical safety, providing additional peace of mind. At just 0.125 inches thick, the cable adds minimal height to your floor, which is beneficial when maintaining existing floor levels. The product is UL certified, indicating it meets standard safety requirements. With more than 30 years of experience, SunTouch provides decent customer support and a warranty that customers can rely on.

The system’s heating capacity is limited to 240 watts over 100 square feet, making it adequate for supplemental heating but potentially insufficient as the primary heat source in very cold areas. Installation may be challenging for those unfamiliar with electrical work, as it requires proper placement and connection to a 240V power source. This kit is a reliable choice for homeowners seeking comfortable, energy-efficient warmth for tile or similar floors, especially for those who value smart home integration and remote temperature management.