Hello everyone,
We want to build a single-family house of about 170m² (1,830 sq ft).
Originally, I thought we would definitely build to KfW 70 standard, maybe even KfW 55. But in discussions with builders, we are always advised against it, as the additional costs supposedly won’t pay off and there wouldn’t be any significant energy savings later on. What do you think? How are you building?
We definitely want to use brick for construction, and we are still undecided about the heating system—gas or heat pump.
We want to build a single-family house of about 170m² (1,830 sq ft).
Originally, I thought we would definitely build to KfW 70 standard, maybe even KfW 55. But in discussions with builders, we are always advised against it, as the additional costs supposedly won’t pay off and there wouldn’t be any significant energy savings later on. What do you think? How are you building?
We definitely want to use brick for construction, and we are still undecided about the heating system—gas or heat pump.
T
toxicmolotof12 Feb 2015 12:39Same for us, since we might achieve KFW55. Our architect, whom I paid, received checkpoints from the energy consultant that he (anyway) had to pay attention to. Then, at the end, there is the confirmation. But this was already the case before for 55 or better.
Häuslebau3r12 Feb 2015 13:15I hope this is the right topic.
Yesterday, we attended a lecture about "energy-efficient building." I was informed that now, even for KfW 70 and KfW 55 standards, an energy consultant has to supervise the construction and also carry out the final inspection. Apparently, this was different until now.
Yesterday, we attended a lecture about "energy-efficient building." I was informed that now, even for KfW 70 and KfW 55 standards, an energy consultant has to supervise the construction and also carry out the final inspection. Apparently, this was different until now.
EveundGerd12 Feb 2015 16:57Häuslebau3r schrieb:
I hope I’m in the right topic now
Yesterday we attended a lecture about "energy-efficient building." I was told that now, even for KfW 70 and KfW 55 standards, an energy consultant must supervise the construction and also carry out the final inspection. Apparently, this was different until now.I believe this has already been clarified here.
I am commenting on the question posed at the beginning of this thread:
We built a solid house in 2014 and chose the KfW70 standard. The effort for this was relatively low; additional measures would never have been cost-effective for us in relation to the savings (energy/interest rates). So now we have a well-insulated house at a reasonable price.
For the heating system, we decided against the widely promoted air-to-water heat pump* and installed a conventional gas heating system instead. We also use vacuum tube solar collectors on the roof as the primary energy source for heating and hot water. These are so efficient that even in winter, under cloudy skies, they almost entirely heat the water on their own.
All in all, we chose what I believe is the best price-performance ratio. Let’s see what our costs will be after the first full year.
________________
*The many reasons against it would go beyond the scope here and are not the topic of this discussion.
We built a solid house in 2014 and chose the KfW70 standard. The effort for this was relatively low; additional measures would never have been cost-effective for us in relation to the savings (energy/interest rates). So now we have a well-insulated house at a reasonable price.
For the heating system, we decided against the widely promoted air-to-water heat pump* and installed a conventional gas heating system instead. We also use vacuum tube solar collectors on the roof as the primary energy source for heating and hot water. These are so efficient that even in winter, under cloudy skies, they almost entirely heat the water on their own.
All in all, we chose what I believe is the best price-performance ratio. Let’s see what our costs will be after the first full year.
________________
*The many reasons against it would go beyond the scope here and are not the topic of this discussion.
Häuslebau3r13 Feb 2015 07:13EveundGerd schrieb:
I believe this was clarified here exactly that way.ok, then I wasn’t entirely wrong
EveundGerd13 Feb 2015 14:26Häuslebau3r schrieb:
ok then I wasn’t completely wrong No, on the contrary. Your information was correct.
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