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
Assuming that the Daikin will not achieve the required seasonal performance factor.
Hoooowever, it also depends on which values you assume.
This approach by the general contractor would really annoy me, but I guess only a few are like that. The air-to-water heat pump naturally has nothing to do with the heating load calculation, rather the other way around.
Personally, I would tend to go for Wolf. I think it is also the more expensive manufacturer.
The heating curve value would be really interesting to know.
What I can say is that Heilbronx and the surrounding area do not have a NAT of -14°C (7°F). Maybe according to the old method, but not according to the currently valid one...
Hoooowever, it also depends on which values you assume.
This approach by the general contractor would really annoy me, but I guess only a few are like that. The air-to-water heat pump naturally has nothing to do with the heating load calculation, rather the other way around.
Personally, I would tend to go for Wolf. I think it is also the more expensive manufacturer.
The heating curve value would be really interesting to know.
What I can say is that Heilbronx and the surrounding area do not have a NAT of -14°C (7°F). Maybe according to the old method, but not according to the currently valid one...
D
Daniel-Sp7 Aug 2020 16:24What is the postal code?
P
Pixelsurium7 Aug 2020 18:47Daniel-Sp schrieb:
What is the postal code?74706
How does Wolf handle smart home integration and other interfaces, cooperation with photovoltaics, etc.? After reading their brochures, I get the impression that Daikin is already more advanced in this area.
And Wolf would be 10 kW (11 hp) even though 8 kW (11 hp) would be sufficient? Is that a problem?
Best regards
Pixelsurium schrieb:
74706
How is it with Wolf regarding smart home integration and other interfaces, collaboration with photovoltaic systems, etc.? After reading the brochures, I get the impression that Daikin is a bit more advanced in this area.
And Wolf would be 10 kW even though 8 kW is sufficient? Is that a problem?
Best regardsNAT 11.49
Wolf also offers smaller models.
Smart home integration doesn’t bring any real benefits.
Photovoltaic systems don’t require particularly complex controls for cooperation either.
P
Pixelsurium7 Aug 2020 20:07face26 schrieb:
NAT 11.49
Wolf also offers smaller models
Integrating with Smart Home systems doesn’t bring any benefits
Photovoltaic systems don’t require particularly complex controls for coordinationThanks for the information.
The installer will probably contact me on Monday, and I will have to make a decision...
I will ask if Wolf also offers a "smaller" version...
P
Pixelsurium7 Aug 2020 20:58What surprises me is that the Daikin 8kW is also listed on the BAFA list, or does that not actually indicate whether the subsidy will be approved?
Similar topics