Jochen104
2015-01-10 14:17:41
- #1
Hello everyone,
I received the calculations from our expert for the KfW today. The Qp reference value is 77.5 kWh/(m²a). The value for our house (monolithic wall construction, no ventilation system, air-water heat pump, no solar, no photovoltaic) is 44 kWh/(m²a). That results in 57% and thus practically a KfW57 house.
We had previously planned with KfW70. Now my questions:
Are there measures (e.g., decentralized ventilation with heat recovery in the two bathrooms) that are cheaper than the €2,500 repayment subsidy and would presumably allow us to get below 55%?
My primary concern is not the KfW55 certification itself, but rather possibly achieving higher comfort at no additional cost.
What additional costs are incurred for the KfW55 certification compared to the 70s? Of course, the calculation would have to be redone. Anything else?
I will of course discuss this with my contractor again later this week, but I want to get information beforehand.
Thanks in advance!
I received the calculations from our expert for the KfW today. The Qp reference value is 77.5 kWh/(m²a). The value for our house (monolithic wall construction, no ventilation system, air-water heat pump, no solar, no photovoltaic) is 44 kWh/(m²a). That results in 57% and thus practically a KfW57 house.
We had previously planned with KfW70. Now my questions:
Are there measures (e.g., decentralized ventilation with heat recovery in the two bathrooms) that are cheaper than the €2,500 repayment subsidy and would presumably allow us to get below 55%?
My primary concern is not the KfW55 certification itself, but rather possibly achieving higher comfort at no additional cost.
What additional costs are incurred for the KfW55 certification compared to the 70s? Of course, the calculation would have to be redone. Anything else?
I will of course discuss this with my contractor again later this week, but I want to get information beforehand.
Thanks in advance!