UFH - Overlay/Retrofit

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Hi,

I am struggling to find many reviews from people who have installed overlay underfloor heating systems. Would be interested to hear thoughts of how people who have it installed and whether they rate it?

I have a 115sq/m bungalow that I am looking to install UFH into. Floor is concrete with no insulation in the slab. It would be primary source of heating, getting rid of a old single line central heating system.

I've had quotes off UFHstore.com (Prowarm system), Nu-heat (lopromax & lopro10 systems) & UFH1 so far.

Some difference in between quoted prices with what I'm beginning to find are similar systems essentially, either XPS board/gypsum board and different pipe size / and or spacing ultimately affects what Wattage/per sqmtr will be achieved.

Any recommendations/views would be much appreciated. As said very little in terms of information on the overlay systems, we have looked at excavating and installing a conventional UFH system but have ultimately decided against it. We would probably look to take off the top layer 40mm or so of screed to allow the install height of the overlay system to remain roughly the same.

Thanks in advance.
 
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I've fitted a lot of NuHeat LoPro Max and have many happy customers as a result
 
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Floor is concrete with no insulation in the slab. It would be primary source of heating

I dotn think those 2 go together.

UFH works great as an inscreed system over 100mm insulation.

It doesnt work great over uninsulated concrete.

How would you take off 40mm of screed?
 
I dotn think those 2 go together.

UFH works great as an inscreed system over 100mm insulation.

It doesnt work great over uninsulated concrete.

How would you take off 40mm of screed?
They do go together if you use the correct system. LoPro Max is designed to be laid directly onto the existing floor with no digging
 
I am thinking of doing similar have you found a good supplier yet? I have wet UFH in my extension but now I am renovating the older side of the house I want to add a retrofit system in. There isn't much info out there on it and how well it performs. I think I may just go with the same brand i used last time with XPS boards and a overlay board as advised, I will add two pipe drops in the walls just in case I have to go back to rads if it doesn't work out :)
 

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