Quick Menu Installation Heater How to test my underfloor heating? Where should I place the floor sensor? When can I turn my underfloor heating on? Can you heat under glass mosaic tiles ? Can Warmup electric heating be installed in a shower? Can I cut my floor heating mat if it’s too large? How to install a floor heating mat around a drain in a shower. Troubleshooting What if I damage the StickyMat Heater during / after installation? Why does my thermostat trip when I switch on my Underfloor heating ? My thermostat says system is on but the floor is not heating up? Electrical Installation Can more than one StickyMat Heater be controlled by the same thermostat? Can I connect one Warmup heater to another in series? Compatibility Can I use the StickyMat System with floor coverings other than tiles? Do I choose cable or mat electric floor heating systems? Can you heat under glass mosaic tiles ? While glass isn’t a strong conductor of heat, you can heat under glass mosaic tiles. The tile adhesive or self-leveling compound will hold and distribute the heat.