Jupiter Underfloor Heating System - any good?

[plumber_MS]

Hi - I'm looking to install a Jupiter UFH - the System between Joists in a Victorian conversion on the second floor. Anybody have previous experience with installing this system. The system will go under tile and under engineered wood floors.

Any other comparative systems that work, especially in terms of accoustic noise transfer? And any indication of cost per square metre?

Very grateful for any advice!

 

[Ajax123]

Hi - I'm looking to install a Jupiter UFH - the System between Joists in a Victorian conversion on the second floor. Anybody have previous experience with installing this system. The system will go under tile and under engineered wood floors.

Any other comparative systems that work, especially in terms of accoustic noise transfer? And any indication of cost per square metre?

Very grateful for any advice!

insulate between the joists over lay with 18mm OSB, cover with polythene, place your underfloor heating pipes using nail clips nailing them to the OSB and then lay a 40mm anhydrite screed over the top. Just make sure your joists are ok to take the weight. I have done this in several rooms in my Victorian house and it works a treat.

 

[plumber_MS]

insulate between the joists over lay with 18mm OSB, cover with polythene, place your underfloor heating pipes using nail clips nailing them to the OSB and then lay a 40mm anhydrite screed over the top. Just make sure your joists are ok to take the weight. I have done this in several rooms in my Victorian house and it works a treat.

Thanks Alan, but we'd like to use a non-screed system due to the weight issues. Jupiter turned out more expensive than their quotover the phone quote, so we're looking at a system which exactly replicates what they do - but i've still been quoted almost GBP 11,500 for an all-in cost of installing this for a 70 sq/m flat - for all materials, floor prep, labour etc. (works out to c.190 per square metre)!!!! Feels really expensive. The specifications we are considering are below, would love to know your views (we need to minimise floor build-up and reduce accoustic transference to the floor below):
Starting from the bottom/between the joists:
100mm Rock wool resting on timber ceiling below
Air gap
18mm ply structural deck supported on battens set between the joist
16mm Pex-Al-Pex heating pipes in grooved foil covered heating panels (on top of the ply)
9mm Redupax acoustic strip to align with the surface of the heating panels
20mm Fermacell 2E11
15mm Engineered wood

UFH System components:
Heatmiser Digital Programmable Thermostat
Grundfos 15-50/60 pump
Pex-Al-Pex pipe 5 Layer
Manifold 6 Zone Dualmix

Details of the construction:
- Minimising the floor buildup is a key factor - need to keep it to the lowest possible height
- It is a conversion and we need to minimise the sound transference to the flat below
- Below us is our neighbours flat, there is no subfloor at the end of our timber joists - just the ceiling of our neighbours flat


Thanks a lot for any input or advice - right now considering giving it all up and just sticking to radiators!

 

[Ajax123]

Unless you add density you will always struggle with sound transmission but there are lots of systems available that can probably help and to be honest for that size of job I would come and do it myself for you for £11000.... I think you have been priced very expensive.

Does it have to be a warm water system or would you consider electric.

 

[plumber_MS]

Isn't electric a lot more expensive in terms of on-going running costs? And less effective? That is the advice everyone gave me. Yes, our quote is very expensive - I will ask around for other estimates - let me know if I may call you. Half of it is the cost of installation of the system, and the labour to put in place the battens and fit the 30mm fly exactly between the joists.

 

[Cornish Cowboy]

I installed a Jupiter supplied system. 18m2 of screed replacement tiles (SRT) with marble laid on top. Excellent quality kit and comprehensive installation instructions. Linked to existing central heating with a danfoss FJVR valve on the return. Would highly recommend the SRT tiles which are tongue and grooved terracotta bonded with an adhesive. Kept the whole system to only 90mm depth.