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
T_im_Norden schrieb:
If I read it correctly, the ID assumes 5566 kW.kWh/a = kilowatt-hours per year
No, no, the sides don't matter. That is the calculation of the annual energy demand.
S
Strahleman7 Aug 2020 08:17T_im_Norden schrieb:
If I read it correctly, they assume 5566 kW on the certificate.That is the energy (kWh/year), but we need the power (kW).T
T_im_Norden7 Aug 2020 09:00I’m not familiar with that thing.
D
Daniel-Sp7 Aug 2020 10:47The essential points have been mentioned: heating load calculation, room-by-room heat demand analysis. If possible, specify the supply temperatures for the underfloor heating.
What is the contractual situation? General contractor agreement, individual trades, is everything already signed? If yes, what has been contractually agreed upon?
What is the contractual situation? General contractor agreement, individual trades, is everything already signed? If yes, what has been contractually agreed upon?
P
Pixelsurium7 Aug 2020 14:44Daniel-Sp schrieb:
The key points were mentioned: heating load calculation, room-by-room heat demand calculation. If possible, specify supply temperatures for the underfloor heating.
What does the contractual situation look like? General contractor contract, individual trades, is everything already signed? If yes, what was contractually agreed? The air-to-water heat pump was included in the house contract. I have now been told that we have a choice between the Daikin 8 kW (however, this one would not be eligible for subsidies) and the air-to-water heat pump from Wolf with an additional cost of about 4000.
We will probably only receive the heating load calculation after selecting the air-to-water heat pump (lol?)
Which manufacturer do you generally lean towards, Daikin or Wolf?
Best regards
T
T_im_Norden7 Aug 2020 15:10If the Daikin 8 kW (10.7 hp) is sufficient, then the Wolf 07 should be enough as well.
I wouldn’t choose a heat pump without subsidies.
The Daikin should also be eligible for subsidies; you will need to check the Bafa list.
I wouldn’t choose a heat pump without subsidies.
The Daikin should also be eligible for subsidies; you will need to check the Bafa list.
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