Hello.
We are planning a single-family house together with an architect, aiming for KfW55 standard. According to the architect, using 36.5 cm (14.4 inches) bricks should not be a problem. With these dimensions, everything is now also approved for the building permit / planning permission.
The structural engineer is now skeptical, and the energy consultant said this wouldn’t be possible at all.
So basically the question is: Has anyone successfully done this before?
Also to be installed: air-to-water heat pump, controlled ventilation with heat recovery.
Thank you.
We are planning a single-family house together with an architect, aiming for KfW55 standard. According to the architect, using 36.5 cm (14.4 inches) bricks should not be a problem. With these dimensions, everything is now also approved for the building permit / planning permission.
The structural engineer is now skeptical, and the energy consultant said this wouldn’t be possible at all.
So basically the question is: Has anyone successfully done this before?
Also to be installed: air-to-water heat pump, controlled ventilation with heat recovery.
Thank you.
Climbee schrieb:
I was told that KfW55 standard can only be achieved using renewable energy. Using gas automatically excludes you.
That’s my information. You can’t really generalize it like that.
A more interesting question is whether it might actually be cheaper to use just gas without meeting KfW55, compared to investing in better insulation and/or other improvements.
M
Mike1234567890118 Aug 2016 22:47It is doable, but you will need to supplement with solar and mechanical ventilation with heat recovery. Since mechanical ventilation with heat recovery is already standard in our case, the additional costs should not be too significant. I can provide more details once the first quotes come in.
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