ᐅ Is it worth choosing KfW55 instead of KfW70 with an additional cost?
Created on: 16 Dec 2015 07:50
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Watcher78
At the moment, we are planning a KfW70 house (controlled residential ventilation with heat recovery and an air-to-water heat pump). For an additional cost of about €8,000, we could upgrade to KfW55. This means more insulation would be required. As far as I know, the basement, the ground loop, and the house itself would need thicker insulation, and some work on the windows might also be necessary.
If I take advantage of the KfW loan, the interest rate for KfW70 is 1.4%, and for KfW50 it is 0.75% plus a €2,500 repayment subsidy. When you calculate the interest and the bonus, I would save almost €5,500 in interest, €3,000, and receive the €2,500 subsidy.
Now I wonder whether this is still worth it or not. Clearly, the house with KfW55 should consume less energy over time, but can this really be calculated so simply to justify the investment? Is it reasonable to say the house would have around €50 less heating costs per month?
What would you do?
If I take advantage of the KfW loan, the interest rate for KfW70 is 1.4%, and for KfW50 it is 0.75% plus a €2,500 repayment subsidy. When you calculate the interest and the bonus, I would save almost €5,500 in interest, €3,000, and receive the €2,500 subsidy.
Now I wonder whether this is still worth it or not. Clearly, the house with KfW55 should consume less energy over time, but can this really be calculated so simply to justify the investment? Is it reasonable to say the house would have around €50 less heating costs per month?
What would you do?
You can calculate that yourself. BeHaElJa already gave you the 5-10€ (5-10 USD) savings per month. On top of that, you need to add the interest cost for the higher loan amount, unless you have already accounted for this by the interest savings. As far as I know, you will also need an energy consultant to oversee the project. Their fees will partially reduce the bonus. So, the investment will only pay off after around 40 years, assuming you don’t plan to sell your house before then.
It’s also important to consider that some renovations may be required again during that time.
It’s also important to consider that some renovations may be required again during that time.
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Watcher7816 Dec 2015 09:54It's not easy; for now, I will wait to see the actual costs and whether everything is included, such as the energy consultant, etc.
MarcWen schrieb:
You can also apply for a subsidy for the consultant. Considering that KfW70 is becoming the standard, it’s worth calculating this and making a decision.With the new KfW requirements starting from April 2016, it is quite possible that the balance will shift in favor of KfW55. You will then need to check the terms and conditions.
A few points from my side:
- KfW-55 involves higher costs for the energy consultant because the verification process is more stringent than for KfW-70.
- Ing-Diba does not offer KfW-55 loans because they consider the process too complex.
- KfW-55 becomes interesting if you plan to include things like geothermal energy and controlled residential ventilation anyway, which may bring you close to a KfW value of 58, meaning you only need to invest a little more in better insulation to reach KfW-55.
- Calculate how much the monthly payment would increase with an additional investment of €2,500 (approximately $2,700) and compare that to the €10 (approximately $11) you would save monthly.
- Conversely, is it possible to reduce insulation without losing the KfW-70 status? You can also analyze cost-benefit in this direction.
- KfW funding conditions can change and do so regularly.
- KfW-55 involves higher costs for the energy consultant because the verification process is more stringent than for KfW-70.
- Ing-Diba does not offer KfW-55 loans because they consider the process too complex.
- KfW-55 becomes interesting if you plan to include things like geothermal energy and controlled residential ventilation anyway, which may bring you close to a KfW value of 58, meaning you only need to invest a little more in better insulation to reach KfW-55.
- Calculate how much the monthly payment would increase with an additional investment of €2,500 (approximately $2,700) and compare that to the €10 (approximately $11) you would save monthly.
- Conversely, is it possible to reduce insulation without losing the KfW-70 status? You can also analyze cost-benefit in this direction.
- KfW funding conditions can change and do so regularly.
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