I installed WarmlyYours in my basement home theatre area and office area on a concrete slab and under laminate flooring. The system was easy to install and works so well I recommended it to my brother. The only issue is that the electrical supply cords to the mats were thicker than the laminate underlayment so it required renting an electric jack hammer and creating trenches wherever the supply cords ran so that the laminate floor would lay flat. I was expecting a ribbon type of supply cord which would match the thickness of the Environ II.
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