ᐅ Which heating system is best for a new build without a mechanical ventilation system?
Created on: 4 Oct 2016 10:44
A
Alpandian89
Hello everyone,
We are planning to build a single-family house (including a basement) next year with a living area of 150 sqm (1,615 sq ft). However, we do not want a ventilation system, and meeting KfW 55 standard is not mandatory.
The plan is to build with either 36.5 cm (14.4 inches) or 42.5 cm (16.7 inches) Poroton blocks. Triple-glazed windows and a stove in the living area are also planned. A gas connection and our own forest are available. One roof side faces southeast/northeast (gable roof with a 45° pitch).
Which heating concept would you recommend?
Please let us know if you need any further information.
Thank you in advance.
We are planning to build a single-family house (including a basement) next year with a living area of 150 sqm (1,615 sq ft). However, we do not want a ventilation system, and meeting KfW 55 standard is not mandatory.
The plan is to build with either 36.5 cm (14.4 inches) or 42.5 cm (16.7 inches) Poroton blocks. Triple-glazed windows and a stove in the living area are also planned. A gas connection and our own forest are available. One roof side faces southeast/northeast (gable roof with a 45° pitch).
Which heating concept would you recommend?
Please let us know if you need any further information.
Thank you in advance.
Of course, you should calculate that. I’m not the perfect advisor here either, as we are still building according to the old energy saving standards. Back then, however, you needed a special expert for the KfW 55 certification, who would have charged a hefty fee.
In the end, it would have been an endless hassle just to save around 1,000 to 2,000 Euros (approx. 1,000 to 2,000 USD). In my opinion, it’s not worth it. During the construction period, personal resources are limited, and you should focus your efforts where they make the most impact.
So, we ignored the KfW program and decided to invest our brainpower elsewhere.
Best regards,
Andreas
In the end, it would have been an endless hassle just to save around 1,000 to 2,000 Euros (approx. 1,000 to 2,000 USD). In my opinion, it’s not worth it. During the construction period, personal resources are limited, and you should focus your efforts where they make the most impact.
So, we ignored the KfW program and decided to invest our brainpower elsewhere.
Best regards,
Andreas
Yes, the expert costs money, but it is also subsidized (50% up to 4,000€). Of course, this must be accounted for.
It’s not like you don’t get something in return. Anyone who can make a profit from a subsidy, as you mentioned, should definitely take advantage of it in my opinion. Besides the financial gain, the property also increases in value.
Example: 100,000€ over 20 years at 1.3% (KfW condition) versus 100,000€ over 20 years at 1.9% (favorable market condition) results in about 8,000€ interest savings. Plus a 5,000€ repayment bonus. If you’re installing the system technology anyway and just need thicker insulation... then a 13,000€ KfW advantage is definitely useful.
Additionally, you save on heating costs, although from today’s perspective not that much (but who knows where things will go), due to better insulation. It certainly doesn’t harm the resale value either.
It’s not like you don’t get something in return. Anyone who can make a profit from a subsidy, as you mentioned, should definitely take advantage of it in my opinion. Besides the financial gain, the property also increases in value.
Example: 100,000€ over 20 years at 1.3% (KfW condition) versus 100,000€ over 20 years at 1.9% (favorable market condition) results in about 8,000€ interest savings. Plus a 5,000€ repayment bonus. If you’re installing the system technology anyway and just need thicker insulation... then a 13,000€ KfW advantage is definitely useful.
Additionally, you save on heating costs, although from today’s perspective not that much (but who knows where things will go), due to better insulation. It certainly doesn’t harm the resale value either.
A
Alpandian894 Oct 2016 18:51Thank you for your answers.
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B
Bauexperte4 Oct 2016 20:41Alex85 schrieb:
With gas, solar, and controlled mechanical ventilation with heat recovery, you can get pretty close to KfW55 standards What is the basis for this statement?
Regards, Bauexperte
Bauexperte schrieb:
What is the basis for this statement?
Regards, BauexperteAccording to the technical minimum requirements set by KFW, this combination is sufficient for KFW 55 under the reference value method.
If the components of the thermal envelope also meet the reference values, then the matter should be settled.
Or am I misunderstanding something?
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