Hello everyone,
we are planning a prefabricated house using timber frame construction. It will have 180 sqm (1,937 sq ft) of living space with underfloor heating, and about 230 sqm (2,475 sq ft) of usable area.
So far, the offer included an air-to-water heat pump from Daikin (Altherma 3R, formerly Rotex HPSU compact Ultra).
Now it seems that this unit might not have enough capacity (?) and as an alternative (additional cost around 4,000) we have been offered a "Wolf heat pump CHC Monoblock 10/300-35".
The Daikin is available in the 4-9 kW version—would that really be insufficient for this size? And what do you think about this offer?
I have the energy-saving regulation heat protection certification and a renewable energy heat law document available, if any information from those is needed.
Thank you very much!
Best regards
we are planning a prefabricated house using timber frame construction. It will have 180 sqm (1,937 sq ft) of living space with underfloor heating, and about 230 sqm (2,475 sq ft) of usable area.
So far, the offer included an air-to-water heat pump from Daikin (Altherma 3R, formerly Rotex HPSU compact Ultra).
Now it seems that this unit might not have enough capacity (?) and as an alternative (additional cost around 4,000) we have been offered a "Wolf heat pump CHC Monoblock 10/300-35".
The Daikin is available in the 4-9 kW version—would that really be insufficient for this size? And what do you think about this offer?
I have the energy-saving regulation heat protection certification and a renewable energy heat law document available, if any information from those is needed.
Thank you very much!
Best regards
N
nordanney8 Aug 2020 17:27Pixelsurium schrieb:
And what does that mean? A mixing buffer tank is pointless?With the low supply temperature produced by the heat pump, the heating water can flow directly into the underfloor heating. In a mixing buffer tank, you enter at a higher temperature so that the appropriate supply temperature can be 'mixed' accordingly. This makes sense when the heat source generates high temperatures, for example, with a water-bearing wood stove.D
Daniel-Sp8 Aug 2020 17:27Putting that aside, how large do you think a buffer tank would need to be to have any significant impact compared to the storage capacity of the underfloor heating system?
Mycraft schrieb:
Monoblock = everything outside -> water pipe through the wall.What are the ones called that are completely installed inside?Monoblock for indoor use?
T
T_im_Norden8 Aug 2020 19:37Monoblock or split system.
Outdoor air also requires a heat pump installed indoors.
Outdoor air also requires a heat pump installed indoors.
tomtom79 schrieb:
Monoblock for indoor installation? Manufacturer? Model? What exactly do you mean? There are many units that are installed indoors but do not relate to this topic here, since this is about an air-to-water heat pump.
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