uneven floor heat

I just had installed heating in my master bath including the walk-in shower. The main floor gets warm, but the entire shower area does not and parts of it are ice-cold. Why won't the shower floor heat up? The electrician has tested everything and says it's all properly done. He did mention that he was sent a special "low voltage mat" for the shower area. Does this mat not heat up like the regular mat? One of the main reasons we went with floor heating was to warm the walk-in shower. Sadly, it is no warmer than probably 50F. HELP!
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  • Hi there, thanks for the post. If the floor isn't heating, there's a good chance that the system is wired incorrectly.

    It might be a good idea to have the installer come back out and call us while they are there. We can run some tests and get the system wired correctly so you can enjoy the warm floor.

    Our number is 800-875-5285. We are available 24/7.
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  • I will do that. Thanks for the prompt reply. I do have another question about this installation....I noticed the electric mats were held in place with duct tape? Would that cause an issue with heating or cause fumes? I was studying the installation literature tonight and I don't see duct tape in the pictures at all :) I did notice it specifies waiting 2 to 14 days for the thinset to cure before activating the system. The electrician turned on the system 3 days after the tile job was completed and I was made ill by the noxious fumes. The system has been turned off since then. I'm hoping that perhaps the thinset had not cured enough and that if we wait another week before turning it back on, there will not be any problem with fumes. Do you have any input or advice on any of this??
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  • Chris (Official Rep) March 01, 2012 19:33
    The use of duct tape would not cause any issues with the installation of our heating system. The thinset should be allowed 7 to 10 days to fully cure prior to using the heat system. Using the heat system earlier than the recommended 7 to 10 days may cause the thinset to not cure properly and possibly crack. As for the fumes, I have never heard of this with our system. What was used to set the tiles?
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  • Since the first attempt to run the system, we waited tthe 10 days and then tried again. In the meantime, I was told that the sealer that was used over all the tile floor is the cause of the fumes. The fumes have dissipated for the most part now - thank goodness!

    We STILL have the issue that the shower floor is cold while the main floor is warm. The electrician is trying to troubleshoot this with Warmly Yours at this time. I personally think it has something to do with the "low voltage" mat that was sent for use inside the shower, but I dont' know for sure. We may end up having to remove the tile to look for damage to the mat.
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  • Chris (Official Rep) March 01, 2012 22:18
    I'm glad the electrician is troubleshooting with us to resolve this issue. Most low voltage issues are due to the floor being wired incorrectly to the transformer. Sometimes too, the shower area may take additional time to heat up due to added thickness of material. Do you know who your electrician has talked to here?
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  • I will pass this along to him and ask who he's working with at W.U. and get back to you.
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  • I’m happy
    I'm happy to report the problem of the cold shower floor has been resolved. In the course of figuring out the cause of the fumes, the electrician had turned off the breaker to the shower floor and overlooked turning it back on. We still have some areas of uneven heat, but that is probably to be expected. Also we believe that the shower floor being tiled with 2-inch squares doesn't feel as warm as the main floor which is tiled in 13-inch squares - even though it is probably the same temp - because it is broken up by all the grout lines, if that makes any sense. The cause of noxious fumes has been determined to because our tile setter told us it would be okay to turn on the heat after only 2 days, when apparently we should have waited 2 WEEKS. So between the sealer and the epoxy grout baking, the fumes were pretty bad - but have now dissipated, whew! BTW, Anatole was the W.U troubleshooter helping our electrician. Thank you for all your help.
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  • Chris (Official Rep) March 03, 2012 19:16
    That's great news! I'm glad everything has worked out and your floors are getting warm.
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