darrenkeighley

Thanks for that i will have a look as we have not ordered yet . no electric supply yet

Nearly all the pipework is now in . Just the manifolds to add and then attach the upstairs radiators and bathroom towel rads. May as well pipe the rest as we need the ceiling up. I can move the main manifold to a kitchen unit to keep it on the same level. We want to run on weather compensation and have been advised an ecodan 8.5kw .

We wish to run the upstairs radiators and the towel radiators (on different floors) on a separate feed from the ufh which will probably be run from 2 manifolds , 1 basement 50m2 and ground floor at around 90m2 . The external walls are insulated to a U value of 0.14 roof to 0.14 and floors to 0.12 so quite good and air tightness to around 4m3/hm2 Its a new build with basement build up of 250mm pir with 300mm concrete then 70mm pir and 80mm screed over pipework Ground floor is block and beam 50mm pir and 70mm screed over pipework . I would like to know thoughts on the ufh system to use and have a few questions before i ask for quotes for supply only. 1. Would 200mm centres be ok overall with a bit less in the bathroom at basement level . 2. Could i place the manifolds at basement level ,1 floor and 1 ceiling or will the ceiling one be better at low level on the ground floor above that it will supply. 3. I may not need the radiators upstairs so should i fit a valve and thermostat for the control. 4. The radiators are piped in 22mm pex pipe , do i connect directly to the heat pump and let the valve turn it on if needed 5. The 3 towel rails (2 first floor 1 basement) would need to be on a timed circuit and on when no normal heating is needed in summer how have you connected this to the heat pump. these are also in 22mm pex.? Thanks in advance for your replies .