Well, few will really be able to help you with that. We have installed it outside the house due to fear of vibrations as it does not bother anyone on our property ...
100 others will tell you their heat pump is inside and it doesn’t vibrate, while others have placed the outdoor unit poorly and are annoyed by it ... you have to decide.
Exciting topic. We are also facing the decision whether it will be a THZ 504 or a TTL 5.6 ACS and are asking ourselves the same questions. Advantage of 5.6: - more space in the utility room - noises stay outside Which in turn is the disadvantage. Does it disturb the neighbors in a residential area? How loud is such a thing anyway?
Exciting topic. We are also facing the decision of whether to choose a THZ 504 or a TTL 5.6 ACS and are asking ourselves the same questions. Advantage 5.6: - more space in the utility room - noise stays outside Which in turn is the disadvantage. Does it bother the neighbors in a residential area? How loud is such a unit anyway?
Honestly, I have no idea how loud these things are either :D Around 55dB according to the technical datasheets. Not exactly quiet, so I’m even leaning towards an indoor installation. Our advantage is that the air-water heat pump is supposed to be installed in our basement. Usually it doesn’t bother anyone there and is nicely locked away :D