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Question DetailsAsked on 2/12/2016

can heated floors be put in walk in shower/ wet room?

remodeling a bathroom, desire heated floors in shower wet room. will this work?

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Sure - commonly done in higher-end spas and hotel spa and steam room reas, ski resorts, professional sports team locker rooms and the like where they want to provide warm floors.


Because of the complexities of the electric code, and for general safety reasons, this is generally not advised or even allowed to be a straight in-floor electric loop system in many or most areas, though I have seen self-limiting thaw wire type heat cable systems encased in grounded metal tubing approved forthis use.


Generally, a self-contained electric heated hot water loop using high temp poly tubing (to avoid the likely corrosion issues with copper piping in a damp grout situation, though that can be overcome with a water barrier above it) is commonly used - though direct connection as a separate thermostatically controlled loop on a hot water baseboard or radiator (hydronic system) can be done if on year-around. I have also seen a loop run off the regular hot water heater for this purpose, again controlled by a thermostat embedded in the floor to prevent overheating.


Any Heating and A/C company experienced in hot water heating loop systems should be able to do this for you - though find one with experience because done wrong you can make it very susceptible to damage in doing shower install/repairs, or make it so most of the heat goes the wrong place - like the one quite large college gym and pool decking install I saw where despite detailed drawings and specs, the contractor honestly thought he was doing a favor putting in a foil-faced vapor barrier foil-down right above the heating loops (which were in open steel floor beam spaces) - so he reflected most of the heat into the overlying boiler room ceiling.


One also commonly wants two thermostats on it - one for floor temp, a second on air temp that shuts off the floor system if air temp gets above a certain temperature, to prevent heat exhaustion/heat stroke risk.

Answered 3 years ago by LCD




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