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?
Alex85 schrieb:
Why do heating technicians install 20 kW gas burners in single-family homes?It's quite simple: unlike with a heat pump, where you need a large hot water tank (which can cause various issues), you can manage with a compact 150-liter (40-gallon) tank to buffer the burner’s output. Hot water can be generated virtually on demand with a 20 kW burner, making it available almost indefinitely. Heating power is usually only required in the range of 5–8 kW.
Best regards,
Andreas
Producing hot water on demand with a 20kW burner is probably as impractical as trying to do so with the heating element of a heat pump.
There is also something to consider between 150 liters and 400 liters (I believe that’s where the requirement to test for Legionella begins?!). In a typical single-family home, hot water in a gas heating system is a byproduct, so the burner has to start up twice. This is completely irrelevant during the heating season. In summer, however, it would be smarter to fill the storage tank once instead of constantly firing up the burner.
There is also something to consider between 150 liters and 400 liters (I believe that’s where the requirement to test for Legionella begins?!). In a typical single-family home, hot water in a gas heating system is a byproduct, so the burner has to start up twice. This is completely irrelevant during the heating season. In summer, however, it would be smarter to fill the storage tank once instead of constantly firing up the burner.
Hi,
26 degrees? Really? Will the house even get warm?
If that’s the case, there’s probably not much you can adjust.
If you still have a warranty, you can submit a defect report to the heating specialists. They are responsible for ensuring that the noise level at night does not exceed 35 dBA. Otherwise, your neighbor could have your heating system shut down.
In reality, there’s probably not much to be done, and if you don’t want to replace the heating system, you might only consider installing a soundproofing wall toward the neighbors.
Best regards,
Andreas
HilfeHilfe schrieb:
I think 26 degrees?
26 degrees? Really? Will the house even get warm?
If that’s the case, there’s probably not much you can adjust.
If you still have a warranty, you can submit a defect report to the heating specialists. They are responsible for ensuring that the noise level at night does not exceed 35 dBA. Otherwise, your neighbor could have your heating system shut down.
In reality, there’s probably not much to be done, and if you don’t want to replace the heating system, you might only consider installing a soundproofing wall toward the neighbors.
Best regards,
Andreas
Alex85 schrieb:
Using a 20kW burner to produce domestic hot water on demand is probably about as effective as trying to do that with the electric heater of a heat pump.Why wouldn’t that make sense? On the contrary, it would actually be quite logical to produce hot water only when I need it! In other words, get rid of the hot water storage tank! But then the heating system might have to work harder. From an energy balance perspective, it doesn’t make much difference whether I heat for 10 minutes at 20 kW or 20 minutes at 10 kW.
The electric heater in a heat pump, on the other hand, is absolutely inefficient energy-wise. But it can’t be avoided since a heat pump usually cannot reach temperatures above 40–45 degrees Celsius (104–113°F). What really matters is the overall balance of the system, and as long as that remains acceptable, you can afford such compromises.
Whether to heat the storage tank once a week to 75 degrees Celsius (167°F) because of the risk of Legionella is something everyone has to decide for themselves. The risk is very low, but if you do get affected, the complaints will be loud.
Best regards,
Andreas
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