How to heat my Huse

renex

lovesgshp wrote: »

Normal underfloor should operate @ circa 35C at 0C outside,(GSHP), rising higher as outside temps get lower, but the range if pretty much graduated.
I cannot see why the pump would be designed to run @ 45C, as that is quite low.

45 degrees is quite hot the average bath is about 38/39 degrees

lovesgshp

renex wrote: »

45 degrees is quite hot the average bath is about 38/39 degrees

45C is hot for underfloor heating, yes it may get to that if needed, but it will depend on outside sensor. I have my DHW temp set at 48C.

renex

Thanks for the advice,

heat pumps really do seem the way forward i'm going for the thermia G3 it says they can have a cop as high as 7!

i know this wont always be the case but still not a bad way to go!

anyone else in my position i would give this a read

unfortunately i cant post links but just google thermia G3 looks the business

lovesgshp

Is this the thermia diplomat optimum G3 GSHP?

renex

it is indeed, i have been told about thermia previously but i never looked them up until now

lovesgshp

Where are you getting the 7 COP from, as according to the data sheet @0C the tech specs i can see on 1 model, the 10 is cop5?

In the normal EN14511 spec, it drops to 4.8 COP

renex

sorry i meant to type 5 and i cant put up the link but click on heat pump guide then click on download heat pump catalogue, that's what i was reading.

lovesgshp

No problem. The COP is about 4.8. Are you considering using it in cooling mode as well?

http://www.thermia.com/products/thermia-diplomat-optimum-g3.asp

renex

i would imagine so, and at the risk of sounding a bit snobby ill also use it to heat the pool

lovesgshp

renex wrote: »

i would imagine so, and at the risk of sounding a bit snobby ill also use it to heat the pool

If you are going to use it to cool the house, then you will need dehumidifiers, to reduce the condensation.

We have a number of units here in Italy, that heat pools. I do not know how that unit works, but if on pool heating, it may shut off house heating until it switches back.