Hello everyone,
I’m a bit “surprised” by the result of our blower door test:
We achieved a value of 1.5 1/h (n50) (the maximum allowed is exactly 1.5 1/h).
Yes, the requirements for a KfW55 house are met, but it still makes me somewhat uneasy.
What values have you achieved, and can anyone guess what might be causing this?
Our detached house:
- with a usable basement
- with an air-to-water heat pump + central controlled residential ventilation
- solid construction with filled 36.5 cm (14.4 inches) bricks
I’m a bit “surprised” by the result of our blower door test:
We achieved a value of 1.5 1/h (n50) (the maximum allowed is exactly 1.5 1/h).
Yes, the requirements for a KfW55 house are met, but it still makes me somewhat uneasy.
What values have you achieved, and can anyone guess what might be causing this?
Our detached house:
- with a usable basement
- with an air-to-water heat pump + central controlled residential ventilation
- solid construction with filled 36.5 cm (14.4 inches) bricks
Malle Zwabber31 Oct 2022 07:02Unfortunately, I have to pass on that. The test was included in the total price from the energy consultant and was not listed separately.
Kati2022 schrieb:
May I ask how much you paid for the blower door test?The usual cost is between 200 and 400 euros net.
For us, it was 280 euros.
Hi,
I can give you a price ;-)
€612.85 including VAT for 2 residential units (each tested separately). This also included leak detection, including assistance with sealing, which took longer than expected, especially in the attic. For 4 residential units, the two engineers needed about three-quarters of a day. The price is from March 2021.
The planning office is located in 48145 Münster. If the location fits your region, I can gladly provide the address...
I can give you a price ;-)
€612.85 including VAT for 2 residential units (each tested separately). This also included leak detection, including assistance with sealing, which took longer than expected, especially in the attic. For 4 residential units, the two engineers needed about three-quarters of a day. The price is from March 2021.
The planning office is located in 48145 Münster. If the location fits your region, I can gladly provide the address...
F
Fleckenzwerg4 Nov 2022 09:15We finalized the financing with a KfW-55 loan in April 2021. Does anyone know if there are any deadlines for when the blower door test must be conducted or when the confirmation after completion needs to be submitted to the bank?
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