Hello,
we are currently considering adding an extra room to our new build garage to house the building services equipment. Since this will be located directly on the property boundary and an air-to-water heat pump with indoor unit would fit perfectly there, some questions about the airflow have come up:
1. Are there clearance requirements for the airflow of indoor-installed heat pumps? There are such rules for outdoor units, but what about the ventilation grilles in walls? Do they also need to maintain a certain distance from the neighbor if, for example, the airflow runs parallel to the property boundary?
2. Does anyone know of any aesthetically pleasing roof penetrations designed for this purpose? So far, the only one I have come across is a Viessmann flat roof penetration (art. no. 9565188), which looks quite good visually.
3. I am particularly interested in the iDM AERO SLM, which, based on the rather limited information available on the website, appears to require placement in a corner to allow airflow on two sides. Has anyone had experience with whether the airflow ducting can be extended?
Thanks 🙂
we are currently considering adding an extra room to our new build garage to house the building services equipment. Since this will be located directly on the property boundary and an air-to-water heat pump with indoor unit would fit perfectly there, some questions about the airflow have come up:
1. Are there clearance requirements for the airflow of indoor-installed heat pumps? There are such rules for outdoor units, but what about the ventilation grilles in walls? Do they also need to maintain a certain distance from the neighbor if, for example, the airflow runs parallel to the property boundary?
2. Does anyone know of any aesthetically pleasing roof penetrations designed for this purpose? So far, the only one I have come across is a Viessmann flat roof penetration (art. no. 9565188), which looks quite good visually.
3. I am particularly interested in the iDM AERO SLM, which, based on the rather limited information available on the website, appears to require placement in a corner to allow airflow on two sides. Has anyone had experience with whether the airflow ducting can be extended?
Thanks 🙂
S
SaniererNRW12316 Aug 2022 23:28Araknis schrieb:
Are there spacing regulations for the airflow of heat pumps installed indoors? For outdoor units, there are rules, but what about the air vents in walls? Do they also need to maintain a certain distance from a neighbor if the airflow, for example, runs parallel to the property boundary? No idea, but I can’t really imagine that.
Araknis schrieb:
2. Does anyone know of any “nice” roof penetrations for this purpose? So far, I have only come across one Viessmann flat roof penetration (item no. 9565188) that looks good aesthetically. You don’t have to use a standard part. Have a carpenter and metalworker build something according to your wishes. It shouldn’t be a particularly big effort.
Araknis schrieb:
I am particularly interested in the iDM AERO SLM, which, based on the (not very informative) website, seems to require placement in a corner to allow airflow on two sides. That applies to all heat pump (outdoor) units. Air is drawn in on one side and expelled on the opposite side. Side clearances must be observed as well. In principle, the airflow can also be extended—I know this from various Geisha forums. However, I can’t tell you how length, air resistance, etc., should be taken into account. Personally, I wouldn’t like to guide air around a corner.
Alright, I will get in touch with iDM.
Interestingly, while searching online, I came across a 2020 ruling from the Administrative Court of Mainz stating that heat pumps do not need to maintain any specific distances to other objects (except, of course, their own technical requirements). Only regulations regarding noise protection need to be considered, meaning the unit outside must not be too loud. In Rhineland-Palatinate, pure residential areas have limits of 50 dB(A) during the day and 35 dB(A) at night. The AERO SLM, at 29 dB(A), comfortably complies with these standards.
Interestingly, while searching online, I came across a 2020 ruling from the Administrative Court of Mainz stating that heat pumps do not need to maintain any specific distances to other objects (except, of course, their own technical requirements). Only regulations regarding noise protection need to be considered, meaning the unit outside must not be too loud. In Rhineland-Palatinate, pure residential areas have limits of 50 dB(A) during the day and 35 dB(A) at night. The AERO SLM, at 29 dB(A), comfortably complies with these standards.
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