I installed the TempZone Flex Roll 240V 1.5′ x 22′, 33 sq.ft. system in a small bathroom over Cerazorb and under porcelain tile. The whole process went smoothly. In particular, WarmlyYours provided a level of customer service that exceeded all expectations, including prompt response to questions, detailed system layout/design, and easily understood instructions. Now that it is colder weather, we have been using the floor warming system and it performs very well, heating the floor to the set temperature in less than 10 minutes and maintaining that temperature. The system itself is well constructed. We appreciated the backing tape. Only advice I can give installers is to plan on laying a fairly thick mortar under the tile with a sufficient notched trowel to prevent tile uneveness. The Cerazorb was easy to notch to accomodate the thermostat and splices, which are thicker than the heating mat.
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