ᐅ KfW 55 according to the new Energy Saving Ordinance (EnEV)
Created on: 24 Jun 2016 13:13
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Goldi09111
Hello everyone,
Since we will probably be able to purchase a plot of land next year, we plan to have more discussions with construction companies over the coming weeks.
After reading various topics here, we are wondering what the best approach is to achieve the KFW 55 standard.
The background is that through the KFW standard, we can obtain very well-subsidized loans from the Saxon Development Bank (SAB).
Our main requirement is a controlled ventilation system, which we know from friends, and since we cannot or do not want to ventilate daily, the additional investment is worth it to us.
We honestly don’t mind whether we choose a gas condensing boiler or a ground-source heat pump; it should simply be the most cost-effective option in the overall investment package.
We are a family of four (ages 30, 30, 3, 4 weeks) and want to build around 140–150m2 (1500–1600 sq ft), including a home office for my wife. The plot is about 900m2 (9700 sq ft) and fully south-facing.
If any further information or conditions are needed, please let me know.
Thank you
Goldi
Since we will probably be able to purchase a plot of land next year, we plan to have more discussions with construction companies over the coming weeks.
After reading various topics here, we are wondering what the best approach is to achieve the KFW 55 standard.
The background is that through the KFW standard, we can obtain very well-subsidized loans from the Saxon Development Bank (SAB).
Our main requirement is a controlled ventilation system, which we know from friends, and since we cannot or do not want to ventilate daily, the additional investment is worth it to us.
We honestly don’t mind whether we choose a gas condensing boiler or a ground-source heat pump; it should simply be the most cost-effective option in the overall investment package.
We are a family of four (ages 30, 30, 3, 4 weeks) and want to build around 140–150m2 (1500–1600 sq ft), including a home office for my wife. The plot is about 900m2 (9700 sq ft) and fully south-facing.
If any further information or conditions are needed, please let me know.
Thank you
Goldi
oleda222 schrieb:
In my opinion, you cannot just support with the trench collector, you have to do it completely yourself. You should clearly agree with the builder where the handover point is (and whether it is filled or unfilled).
With some coordination and organizational effort, this is easy to manage! However, you should thoroughly read up on the topic in a specialized forum.
Also, the extraction capacity of the trench collector can be calculated quite well, whereas for surface collectors it is more of an estimate.
In our area, most installers do it themselves; logically, the excavation is done by the civil engineer, and sometimes even the laying is pushed onto the installer, which is not rocket science...
I have also never heard of any specialist company for surface collectors. This is incorrect. There are also heating and air conditioning companies that offer and install trench collectors. Depending on the company, there is even the option for partial owner participation, such as digging the trench or helping with the installation, etc. This has happened on our street.
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Goldi0911128 Jun 2016 20:50Thanks in advance for the plentiful information.
I will check with companies in the area whether trench or surface collectors are offered.
The plot of land, which we will probably inherit, is said to be very wet because a small stream flows directly alongside it, and the groundwater level is very high. Additionally, due to elevated arsenic levels in the soil, a soil replacement will have to be carried out, so "larger holes" will need to be dug anyway. Am I right in assuming that moist soil is better for this?
P.S. Do you know how much such a soil replacement might cost? It is about a 900m² (9,688 sq ft) plot, and I have seen/heard figures in the range of 10,000 to 20,000.
I will check with companies in the area whether trench or surface collectors are offered.
The plot of land, which we will probably inherit, is said to be very wet because a small stream flows directly alongside it, and the groundwater level is very high. Additionally, due to elevated arsenic levels in the soil, a soil replacement will have to be carried out, so "larger holes" will need to be dug anyway. Am I right in assuming that moist soil is better for this?
P.S. Do you know how much such a soil replacement might cost? It is about a 900m² (9,688 sq ft) plot, and I have seen/heard figures in the range of 10,000 to 20,000.
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