chrischn
2015-07-02 12:49:32
- #1
Hello,
we want to build a single-family house with about 200 sqm of living space.
The heating should be a gas condensing boiler.
In the living-dining room, a hydronic stove
and photovoltaic on the roof.
Our energy consultant has now said that if we want KfW 70, we have to install solar thermal on the roof instead of photovoltaic. But I don't really want that.
Now to my question: Does anyone know if hot water with photovoltaic provides
the same as solar thermal?
On the one hand for the KfW application
and on the other hand from an energy perspective? Economic efficiency?
Thanks for your experience and contributions.
Regards
we want to build a single-family house with about 200 sqm of living space.
The heating should be a gas condensing boiler.
In the living-dining room, a hydronic stove
and photovoltaic on the roof.
Our energy consultant has now said that if we want KfW 70, we have to install solar thermal on the roof instead of photovoltaic. But I don't really want that.
Now to my question: Does anyone know if hot water with photovoltaic provides
the same as solar thermal?
On the one hand for the KfW application
and on the other hand from an energy perspective? Economic efficiency?
Thanks for your experience and contributions.
Regards