Hello, we are not building yet, but we have already gathered several quotes. We are also planning to use a gas heating system, but want to achieve the KfW 55 standard. Therefore, our plans include a controlled mechanical ventilation system with heat recovery, a solar thermal system, and our windows also have an overall U-value of 0.7.
G
Goldi091111 Jun 2016 21:50Why does it have to be KfW55?
Because the additional cost for the features we want is low, the KFW funding is worthwhile for us.
jama schrieb:
Good morning home builders.
A question: who is building with a gas heating system according to the new building regulations?
I ask because I have to achieve a total window U-value of 0.7 (W/m²K) due to the new requirements, which is quite expensive.
How is it with you?If you don’t want or need a government energy efficiency loan (KfW loan), it’s not a problem at all.
I’m still in the early planning stage myself and currently leaning toward gas (without solar thermal) or a heat pump with a ground collector.
jaeger schrieb:
If you don’t want or need a KfW loan, that’s not a problem at all.
I’m still in the early planning stage myself and currently leaning towards gas (without solar thermal) or a heat pump with a ground collector. A guest without solar thermal will also have difficulties with a ventilation system.
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