some one told me there are wet systems available that have like panels the pipe clips into and then you can sit the boards or tiles on top of the panels – no screed
so can be ready in a couple of days rather than 3 weeks
tried google can’t find any pointers any ideas?

Aluminium spreader plates are available, usually used for installing wet ufh onto suspended floors, look here

thanks that is helpful – existing floor is concrete but could put shallow joists across – don’t have any real issues with height – problems are don’t want kitchen out of action too long and building is 1930s and around 10 years ago had to put steeel joists under the concrete floors to stop bowing

another 50mm or so of screed could mean getting an engineer to guess for a lot of money if floor can take the weight

Check NuHeat’s website…they have numerous different solutions

We do a version without screed….Jupiter sell it with us, and have some other options for you. Speak direct to Jupiter about cost/delivery etc.

http://www.natural-building.co.uk/pavatex_floor_insulation.htm

http://www.natural-building.co.uk/PDF/Pavatex/Pavafloor/080331_NBT%20Floor%20System%20Underfloorheating%20Jupiter.pdf

http://www.jupiter-system.com/product-UFH.php

thanks – the NuHEat technical stuff looks very helpful on planning heat output and the pavatex system looks like what i want with the big bonus of being environmentally good

The pavatex works well with electirc UFH – thats what we have 🙂