Hello,
Behind our two-family house is the air-to-water heat pump. Our new neighbors (three-family house) are very nice. The neighbors living on the ground floor are experiencing their first winter in the new building and hear the air-to-water heat pump running at full capacity.
They find it quite loud, especially in the evening when it operates at subzero temperatures (understandable since the house is being heated).
The heating engineer said that the air-to-water heat pump can be "turned down" during the evening or night hours to reduce noise, but he advises against this because
1 - The house cools down
2 - The air-to-water heat pump risks icing up since the heating elements are also turned down
What do you think about this? Are there any acceptable decibel levels?
Behind our two-family house is the air-to-water heat pump. Our new neighbors (three-family house) are very nice. The neighbors living on the ground floor are experiencing their first winter in the new building and hear the air-to-water heat pump running at full capacity.
They find it quite loud, especially in the evening when it operates at subzero temperatures (understandable since the house is being heated).
The heating engineer said that the air-to-water heat pump can be "turned down" during the evening or night hours to reduce noise, but he advises against this because
1 - The house cools down
2 - The air-to-water heat pump risks icing up since the heating elements are also turned down
What do you think about this? Are there any acceptable decibel levels?
HilfeHilfe schrieb:
1 meter (3 feet) FROM the neighbor’s house to oursSorry, I don’t understand. Typo?
The calculation is correct. It seems that a 6 dB penalty is applied during the daytime quiet hours, but this 6 dB penalty does not apply at night.
Your rather loud system would therefore need to maintain a distance of 11.30 meters (37 feet) at night.
The Rotex would only require a distance of 5.02 meters (16.5 feet) in a purely residential area.
Your rather loud system would therefore need to maintain a distance of 11.30 meters (37 feet) at night.
The Rotex would only require a distance of 5.02 meters (16.5 feet) in a purely residential area.
Please delete "apparently," it's definitely unnecessary. It clearly states above: Calculation for the rest period during the day and at night.
The curve starts at 1 meter (3 feet). This is also correct. Between right next to the source and 1 meter (3 feet) there is a significant two-digit difference in decibels. It’s exponential and so on.
The curve starts at 1 meter (3 feet). This is also correct. Between right next to the source and 1 meter (3 feet) there is a significant two-digit difference in decibels. It’s exponential and so on.
H
HilfeHilfe31 Jan 2017 09:38Grym schrieb:
First of all, almost never are pure residential zones designated, but rather general residential areas. Therefore, 40 dB at night and 55 dB during the day apply.
Secondly, for example, with a Rotex hpsu compact at 8 kW, I already comply with the TA Lärm (Technical Instructions on Noise Protection) from 2 meters (6.5 feet) away? And that’s nothing special, right?
Thirdly: The app is not accurate? And where were the 48 dB measured? Distance?For us, it’s 65 dB both at night and during the day... now the plumber wants to measure again.
How is it generally: our house was there first and the neighbor’s house was built 1.5 years later.
Is the original house simply out of luck now?
N
nasenmann31 Jan 2017 13:20where the noise is unnecessary, below -5°C (23°F) it will operate purely as an electric heating system anyway. The fan noise then is just a bit of show for your conscience.Hmm, I have a system from Alpha Innotec just like you. For me, the fuses for the heating element are switched off. It was still warm during the recent cold weeks (nighttime temperatures down to -12°C (10°F), daytime no colder than -5°C (23°F)).
And my unit wasn’t very loud either.
HilfeHilfe schrieb:
So, for us it is 65 dB both day and night.... now the plumber wants to measure again
how is it basically, first our house was there and 1.5 years later the neighbor’s house.
Is the house now just unlucky?Which house is considered unlucky?
You naturally need to ensure that your emissions do not disturb the neighbor.
Most likely, it will come down to the noise limits specified in the TA Lärm (Technical Instructions on Noise Protection), which are measured 1 meter (3 feet) in front of the neighbor’s window.