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 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.

The WarmlyYours Heated Floor System is an electric under-tile heating mat designed to warm up to 69 square feet, making it a great choice for bathrooms or similar rooms where cold floors are common. Its radiant heating cables deliver 15 watts per square foot, which means it heats up quickly and evenly without cold spots. The mat is very thin—only 1/8 inch thick—so it installs easily right under tile or stone without raising the floor height noticeably. This makes it suitable for most remodeling projects without extra flooring adjustments.

Energy efficiency is a plus here, as the system uses a dense cable layout to maximize warmth while minimizing power use. It runs on 240 volts and draws about 4.3 amps, typical for an electric floor heating setup. The system includes a floor sensor to help regulate temperature and avoid overheating, adding to comfort and safety. Installation is straightforward since no assembly is required, and the mat’s flexibility allows it to fit various room shapes.

A significant advantage is the 25-year warranty and lifetime support, demonstrating confidence in durability and customer service. It’s also UL listed for wet locations, which is crucial for bathroom use. The product is compatible with many flooring types beyond tile and stone, including nailed hardwood, providing versatile application. It does require a 240V power supply, which might need professional installation if your home’s wiring doesn’t support it. While energy efficient, running a continuous heating system can increase electricity costs. This heating mat is a reliable way to add cozy warmth beneath tile or stone floors, especially in bathrooms, without complicated installation or raising floor height.