ᐅ Heating and ventilation system for a KfW40 energy-efficient house
Created on: 18 Apr 2017 20:54
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Proteus
Hello,
My name is Alex, and my family (wife and child) and I are currently planning a KfW40 house of about 190 sqm (2,045 sq ft).
My personal challenge is with the hot water, heating, and ventilation systems—I want to do everything correctly if possible.
I am interested in installing both photovoltaic panels and a solar thermal system; is this still considered a modern solution?
Which combinations make sense or are feasible (heat pump, solar, air-to-air heat exchanger, etc.)? As I mentioned :-) ... I’ve lost track of what is actually practical.
I hope you can advise me and provide support on this.
Thank you in advance,
Best regards
Alex
My name is Alex, and my family (wife and child) and I are currently planning a KfW40 house of about 190 sqm (2,045 sq ft).
My personal challenge is with the hot water, heating, and ventilation systems—I want to do everything correctly if possible.
I am interested in installing both photovoltaic panels and a solar thermal system; is this still considered a modern solution?
Which combinations make sense or are feasible (heat pump, solar, air-to-air heat exchanger, etc.)? As I mentioned :-) ... I’ve lost track of what is actually practical.
I hope you can advise me and provide support on this.
Thank you in advance,
Best regards
Alex
Are you building a solid (brick and mortar) house or a prefabricated house? Why choose KfW 40 instead of 40+, 55, or the Energy Saving Ordinance?
Solar power only makes sense when combined with gas heating. For a solid house, KfW 55 with a heat pump and controlled ventilation can be cost-effective, but probably not KfW 40.
Solar power only makes sense when combined with gas heating. For a solid house, KfW 55 with a heat pump and controlled ventilation can be cost-effective, but probably not KfW 40.
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Bieber081523 Apr 2017 13:26If I could, I would build a house according to the energy-saving regulations using a gas condensing boiler. If gas is not an option, then a ground-source heat pump would be my favorite. Alternatively, if cost is a factor, an air-to-water heat pump. In any case, with controlled ventilation including heat and moisture recovery—for the sake of comfort.
You have to calculate the cost-effectiveness of photovoltaic systems... The effort involved alone puts me off.
You have to calculate the cost-effectiveness of photovoltaic systems... The effort involved alone puts me off.
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