Warmup has the highest quality products. What is unique about us, it that we have the toughest, dual-fluoropolymer, thin (1/8″ or 3mm diameter) heating wire on the market. It won’t raise floor levels and is UL approved, meeting the highest safety standards for electric underfloor heating. Our wet underfloor heating systems come fully designed, supplied with a full set of high-quality components and controls ready for installation and are available in a number of configurations and components,