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Heated Floors on Concrete

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Posted by: from Newmarket
10/10/2018 at 9:51:53 AM

Our contractors purchased the schluter ditra heated mats but I noticed that it isn't the ones with the felt bottoms. Is that ok or is it going to not heat that efficiently?

Could I just purchase felt and put it under or have to buy the ones with the felt bottoms attached?

REPLIES (4)
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Robert from ElecTriLight Ltd. in Oakville
Date/Time10/10/2018 at 4:56:53 PM

Hello Leslie,

Your electrical contractor must get an electrical permit and inspection for that installation. Some general contractors or flooring people can also do this job, but they too require an electrical inspection and permit.

Do not allow anyone to install electric heated floors without a permit as this could create a fire or electrocution hazard. (no matter how many they claim to have done, it is illegal)

The installation in the booklet will provide all the answers for you and are very detailed to the way they must be installed, please consult the manual that came with the floor heating kit

for more info or contractors in your area:

http://applications.dmtispatial.com/esa/

https://www.esasafe.com/consumers/permits-and-inspections/what-you-need-to-know

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Cory from Polar Electric in Leduc
Date/Time10/10/2018 at 7:01:12 PM

Hello Leslie,

First of all make sure your contractors are licensed, qualified, and have an active electrical permit before completing the install.

The type of the in floor heating you have should be installed to manufacturers specifications. The manual it comes with will tell you all you need to know about the installation of the product. Hope this helps.

Cory

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Date/Time10/12/2018 at 2:08:24 PM

Hi

I have never seen ditra heat without a white backer on it, something new. The mat + backer (all in one) act as a decoupler, a must if you install tile, helps prevent the grout from cracking when the sub floor moves around.You will also need a ESA permit for the wiring

Hope this helps.

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Dave from 360renos in Ottawa
Date/Time10/12/2018 at 4:50:59 PM

Hi Leslie

I've never heard of Schluter Ditra with out the fleece backing. It just would not be able to bond properly to the sub-floor with out it.

For basement flooring you may want to use Schluter Duo. It is thicker and therefore a bit more of a thermal break with the concrete floor as well it will take the installation of the Schluter heat cable at the same time

As mentioned use must get an ESA inspection after your heat cables and sensor are installed but prior to mortar and tiling and then another inspection once all is completed.

Dave

360renos.ca

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