ᐅ Heat pumps consume a significant amount of energy and can generate considerable noise.
Created on: 17 Jan 2024 18:26
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Eldirwars
Hello everyone,
We have been living in our new house for one month now and are experiencing significant noise issues. The noise comes from the manifold of the underfloor heating system as well as the pump itself, which is very loud. The sounds are mostly sharp clicking or ticking noises, especially noticeable in the bedroom. The flow rate and the pump settings have been adjusted, but nothing has improved. However, it is always quiet in the early morning hours. Could it possibly be due to a setting on the unit? The heating technician has already been here but is unsure of the cause. Another technician from Bosch is scheduled to come and take a look, but I’m not sure if the pump is the problem. Also, the house is barely warming up at the current temperatures, and I am using more than 30 kWh daily, which seems very high for a 150 m² (1,615 sq ft) home.
We have been living in our new house for one month now and are experiencing significant noise issues. The noise comes from the manifold of the underfloor heating system as well as the pump itself, which is very loud. The sounds are mostly sharp clicking or ticking noises, especially noticeable in the bedroom. The flow rate and the pump settings have been adjusted, but nothing has improved. However, it is always quiet in the early morning hours. Could it possibly be due to a setting on the unit? The heating technician has already been here but is unsure of the cause. Another technician from Bosch is scheduled to come and take a look, but I’m not sure if the pump is the problem. Also, the house is barely warming up at the current temperatures, and I am using more than 30 kWh daily, which seems very high for a 150 m² (1,615 sq ft) home.
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Eldirwars21 Jan 2024 15:54Daniel-Sp schrieb:
4 hours to heat water to 48°C (118°F) is not normal, unless you have outdoor temperatures of -18°C (0°F) and only a 2 kW heat pump.
Is the Wilo pump itself making the noise? Or are they just transmitted sounds?
What else is installed before the heating circuit distributor (HKV) that could be a potential noise source? The Wilo pump is the main source of the noise from the pump; whether it is just transmitting it, I can’t say. However, there are different sounds at the heating circuit distributor (HKV) compared to the Wilo pump. There is nothing special installed—just an expansion vessel and the usual components; I am not deeply familiar with the system.
The pump only handles the heating circuits, and the hot water is heated by a different system? Could the heat pump be incorrectly set, or why does it take so long?
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Eldirwars22 Feb 2024 13:36Hello everyone,
My energy consumption has now stabilized at around 13 kWh per day. I have set all the valves in the rooms (thermostats) to 30, and this works well. The noise problem had improved after we started turning the system down at night. However, recently it has become extremely loud even during the night, even though the Wilo pump is running at its lowest setting. When I adjust the pump, it sounds like a stream running right next to you.
The technician from Bosch is unfortunately still delayed. When I followed up today, I was suddenly told they are waiting for a new compressor. I wonder how they came to the conclusion that the compressor needs to be replaced. That is certainly not the cause. They are now trying to clarify where that information came from.
The noise continues even when the heat pump is switched off. Maybe I should have a bypass valve installed? My heating engineer didn’t want to hear about that.
Are there other settings on the pump that the technician can adjust, or does the Wilo pump control everything?
My energy consumption has now stabilized at around 13 kWh per day. I have set all the valves in the rooms (thermostats) to 30, and this works well. The noise problem had improved after we started turning the system down at night. However, recently it has become extremely loud even during the night, even though the Wilo pump is running at its lowest setting. When I adjust the pump, it sounds like a stream running right next to you.
The technician from Bosch is unfortunately still delayed. When I followed up today, I was suddenly told they are waiting for a new compressor. I wonder how they came to the conclusion that the compressor needs to be replaced. That is certainly not the cause. They are now trying to clarify where that information came from.
The noise continues even when the heat pump is switched off. Maybe I should have a bypass valve installed? My heating engineer didn’t want to hear about that.
Are there other settings on the pump that the technician can adjust, or does the Wilo pump control everything?
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