ᐅ Annual Heating Costs for KfW55 – KfW70 Energy Efficiency Standards, Heating System Decision
Created on: 8 May 2012 08:31
H
haus1212
Hello,
In my opinion, the heat demand calculation or heating load calculation provides insight into this. It also takes the heat generator into account. At least you have data that can be compared. This way, you can weigh the higher investment costs against the potential savings.
How the actual heating costs turn out is another matter entirely (personal preferences for temperature, shower/bathing habits, etc.).
Best regards...
In my opinion, the heat demand calculation or heating load calculation provides insight into this. It also takes the heat generator into account. At least you have data that can be compared. This way, you can weigh the higher investment costs against the potential savings.
How the actual heating costs turn out is another matter entirely (personal preferences for temperature, shower/bathing habits, etc.).
Best regards...
haus1212 schrieb:
...What are the average annual heating costs for a KfW55 house compared to a KfW70 house? There is no reliable general answer to this question. The actual energy demand must first be determined and then, depending on the heat generation system, the actual consumption assessed. This should always be done in the initial assessment phase. Best regards
Good morning,
Are you planning a custom architect-designed house or a standard production home?
The house builder usually has all the relevant data for their standard models and can often provide information for energy standards like KfW 70 and 55 for comparable designs.
This was the case for us (a prefabricated house). For each standard model in their series, you could look at the data based on the type of heating system. The company knows the values for their walls, roofs, and so on. At least, we were able to get a fairly good comparison between KfW 70, 55, and 40, including the associated additional costs.
A good company should be able to provide this kind of data so you can make a comparison. After all, they also provide the final energy performance certificate, blower door test, and so forth. This was at least our experience.
Best regards...
Are you planning a custom architect-designed house or a standard production home?
The house builder usually has all the relevant data for their standard models and can often provide information for energy standards like KfW 70 and 55 for comparable designs.
This was the case for us (a prefabricated house). For each standard model in their series, you could look at the data based on the type of heating system. The company knows the values for their walls, roofs, and so on. At least, we were able to get a fairly good comparison between KfW 70, 55, and 40, including the associated additional costs.
A good company should be able to provide this kind of data so you can make a comparison. After all, they also provide the final energy performance certificate, blower door test, and so forth. This was at least our experience.
Best regards...
If you’re not planning to build a huge mansion, it probably won’t make much of a difference. For us, upgrading from KfW 70 to 55 cost about 8,000 € (around 8,900 USD). You get 2,500 € (about 2,800 USD) back from the government, so the net cost is 5,500 € (around 6,100 USD).
That amount can cover heating for quite a while. Plus, the installed ventilation system also improves living comfort... which is why we decided to go for it. According to a forum of customers from my supplier, heating costs per month with a standard gas boiler range between 30 and 60 € (35 to 65 USD), depending on heating needs and the region.
That amount can cover heating for quite a while. Plus, the installed ventilation system also improves living comfort... which is why we decided to go for it. According to a forum of customers from my supplier, heating costs per month with a standard gas boiler range between 30 and 60 € (35 to 65 USD), depending on heating needs and the region.
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