ᐅ Retrofitting an air conditioning system – will that affect KfW funding?
Created on: 10 Jun 2021 21:02
H
Helado
Good evening everyone,
Since October, we have been living in a prefabricated house built by Hanse Haus. We have been living here for about 5 months now and are very pleased.
However, at the moment, the indoor temperature in each room is between 26°C and 28°C (79°F and 82°F), even though it is similarly warm outside. The only way we can lower the temperature is by opening the windows at night.
We have a KFW55 standard and a Stiebel Eltron LWZ 5s Plus. Unfortunately, it does not have an active cooling function, but we have installed and activated the summer cassette in the menu settings. So far, this has not produced the desired result. The temperature remains the same.
We are now considering adding air conditioning, but we have been clearly advised that this might mean no longer meeting the KFW energy-saving regulation standards, and therefore, it might affect the eligibility for subsidies. Fortunately, it is not very hot outside at the moment, but when it reaches 35°C (95°F) outdoors, the temperature inside the house can easily rise to around 30°C (86°F), which is not exactly comfortable.
Does anyone have advice or experience with retrofitting air conditioning (in specific rooms) or with the same heating system?
Thanks & best regards
Helado
Since October, we have been living in a prefabricated house built by Hanse Haus. We have been living here for about 5 months now and are very pleased.
However, at the moment, the indoor temperature in each room is between 26°C and 28°C (79°F and 82°F), even though it is similarly warm outside. The only way we can lower the temperature is by opening the windows at night.
We have a KFW55 standard and a Stiebel Eltron LWZ 5s Plus. Unfortunately, it does not have an active cooling function, but we have installed and activated the summer cassette in the menu settings. So far, this has not produced the desired result. The temperature remains the same.
We are now considering adding air conditioning, but we have been clearly advised that this might mean no longer meeting the KFW energy-saving regulation standards, and therefore, it might affect the eligibility for subsidies. Fortunately, it is not very hot outside at the moment, but when it reaches 35°C (95°F) outdoors, the temperature inside the house can easily rise to around 30°C (86°F), which is not exactly comfortable.
Does anyone have advice or experience with retrofitting air conditioning (in specific rooms) or with the same heating system?
Thanks & best regards
Helado
A
AllThumbs23 Jun 2021 22:41I just thought about where I got the idea of 5 years from:
On Daikin’s website, in the subsidy calculator, entering "< 5 years" triggered a message stating that no subsidy was possible. However, I couldn’t find this information on the BAFA site either.
On Daikin’s website, in the subsidy calculator, entering "< 5 years" triggered a message stating that no subsidy was possible. However, I couldn’t find this information on the BAFA site either.
T
T_im_Norden24 Jun 2021 07:56The individual measure refers to renovation measures for existing houses. These are defined as having been built at least 5 years (60 months) ago.
Federal Gazette BEG EM
For the purposes of this guideline,
a) "existing buildings": buildings whose building permit or planning permission was granted at least five years (60 months) prior to the date of application;
Federal Gazette BEG EM
For the purposes of this guideline,
a) "existing buildings": buildings whose building permit or planning permission was granted at least five years (60 months) prior to the date of application;
D
Deliverer8 Jul 2021 22:48There are not many systems with R410A left. Generally, these systems are older and therefore usually less efficient. Using R32 is also more environmentally friendly. It is more expensive, which can be frustrating in case of a leak. The only disadvantage, the higher flammability, is purely theoretical. Nothing will catch fire unless you deliberately try to make it happen. For these reasons, I would stick with R32.
P
pagoni20208 Jul 2021 23:16netuser schrieb:
A question for the air conditioning experts:
Is it definitely advisable these days to choose R32 as the refrigerant, or are systems with other refrigerants, like R410A, not necessarily to be ruled out!?I currently have my quotes and will most likely go with a Daikin system. Apart from Stiftung Warentest’s results, I also liked them best, and they apparently use the R32 refrigerant.