ᐅ KfW 70 energy standard with gas condensing boiler, solar water heating, and fireplace
Created on: 22 Apr 2016 08:11
S
SilentGalaxy
Hello,
Which combination would you recommend?
KFW70 with gas condensing boiler + solar water heating + heat recovery + fireplace
or KFW55 with low-temperature heat pump + heat recovery + fireplace?
(Low-temperature heat pump Proxon), (Proxon Zimmermann ventilation).
The costs for the 55 standard are 12,000 Euros more expensive.
I will provide the U-values shortly.
But first: which makes more sense?
Regards
Which combination would you recommend?
KFW70 with gas condensing boiler + solar water heating + heat recovery + fireplace
or KFW55 with low-temperature heat pump + heat recovery + fireplace?
(Low-temperature heat pump Proxon), (Proxon Zimmermann ventilation).
The costs for the 55 standard are 12,000 Euros more expensive.
I will provide the U-values shortly.
But first: which makes more sense?
Regards
B
Bauexperte23 Apr 2016 17:16Hello Thorsten,
just for the sake of completeness: the primary energy factor for electricity has been 1.8 since 2016
Bauexperte
just for the sake of completeness: the primary energy factor for electricity has been 1.8 since 2016
Bauexperte
Bauexperte schrieb:
Hello Thorsten,
just for the sake of completeness; the primary energy factor for electricity has been 1.8 since 2016
BauexperteBauexperte, many thanks for this information, I thought it was still around 2.
I will remember the current value!!!!
Best regards
Thorsten
EveundGerd23 Apr 2016 23:33Since everything about heating types has been covered for now, I am curious why, when planning for heat recovery, a chimney is still included. Is it for coziness or to support heating capacity?
Hi,
in a well-known, non-tabloid national Sunday newspaper from today, 24.04.16, there is a quite critical report about air-to-water heat pumps in the finance section (page 43). Many of the facts mentioned are certainly correct and relevant. Of course, incorrectly set up or improperly sized systems can be costly. We had such a case in a distant acquaintance’s circle as well, which was resolved.
Nevertheless, I stick to what I wrote above. Everyone according to their preferences.
Every homeowner must take care of their heating system. If I hadn’t optimized my gas condensing boiler myself (after thoroughly studying the manuals), it wouldn’t work as well. You have to observe and, if necessary, intervene yourself or with a professional when something isn’t working properly. I also needed help once with a solar thermal system that wasn’t functioning well (the water initially cooled down when the system started). A professional helped make it usable. I couldn’t adjust it myself.
Best regards
Thorsten
in a well-known, non-tabloid national Sunday newspaper from today, 24.04.16, there is a quite critical report about air-to-water heat pumps in the finance section (page 43). Many of the facts mentioned are certainly correct and relevant. Of course, incorrectly set up or improperly sized systems can be costly. We had such a case in a distant acquaintance’s circle as well, which was resolved.
Nevertheless, I stick to what I wrote above. Everyone according to their preferences.
Every homeowner must take care of their heating system. If I hadn’t optimized my gas condensing boiler myself (after thoroughly studying the manuals), it wouldn’t work as well. You have to observe and, if necessary, intervene yourself or with a professional when something isn’t working properly. I also needed help once with a solar thermal system that wasn’t functioning well (the water initially cooled down when the system started). A professional helped make it usable. I couldn’t adjust it myself.
Best regards
Thorsten
EveundGerd24 Apr 2016 10:17In our circle of acquaintances, there is a heating engineer who has been involved in a court case for months. The air-to-water heat pump he installed does not adequately heat the house and then relies on the auxiliary heating element.
However, the homeowner insisted on having exactly this one air-to-water heat pump for his older building, against expert advice!
Unfortunately, there is no such thing as a one-size-fits-all solution. Therefore, I can only recommend doing thorough research.
However, the homeowner insisted on having exactly this one air-to-water heat pump for his older building, against expert advice!
Unfortunately, there is no such thing as a one-size-fits-all solution. Therefore, I can only recommend doing thorough research.
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