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
P
Pixelsurium9 Aug 2020 16:15Hi, I found something else in the thermal insulation calculation. Is this the Ht value?
Best regards
Best regards
D
Daniel-Sp9 Aug 2020 17:03Ht=0.28
P
Pixelsurium9 Aug 2020 17:40I will summarize:
Ht = 0.28
NAT = -11.49
Building envelope area: 559.65 m² (6025 ft²)
Building volume: 726.44 m³ (25641 ft³)
Heated air volume: 552.09 m³ (19492 ft³)
180 m² (1937 ft²) living area with underfloor heating. Approximately 230 m² (2476 ft²) usable area.
Desired temperature: 20-21°C (68-70°F)
Occupants: Currently 2 adults + 1 child + possible self-contained apartment (let’s assume a maximum of 5-6 people)
Ventilation: None
Ht = 0.28
NAT = -11.49
Building envelope area: 559.65 m² (6025 ft²)
Building volume: 726.44 m³ (25641 ft³)
Heated air volume: 552.09 m³ (19492 ft³)
180 m² (1937 ft²) living area with underfloor heating. Approximately 230 m² (2476 ft²) usable area.
Desired temperature: 20-21°C (68-70°F)
Occupants: Currently 2 adults + 1 child + possible self-contained apartment (let’s assume a maximum of 5-6 people)
Ventilation: None
P
Pixelsurium9 Aug 2020 18:09face26 schrieb:
Is the granny flat already included in the heated volume?YesSimilar topics