ᐅ Heat pumps consume a significant amount of energy and can generate considerable noise.
Created on: 17 Jan 2024 18:26
E
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.
J
jens.knoedel19 Jan 2024 11:16Eldirwars schrieb:
Where can I see the flow rate produced by the heat pump?In the heat pump. You just have to check the menu. Have the heat pump and the reading/setting options been explained to you at all—pump capacity, supply/return flow, heating curve, etc.?When it defrosts on my system and nearly 1,800 liters per hour (475 gallons per hour) flow through, I can easily hear it. During normal operation like now, it’s 800–900 liters per hour (210–240 gallons per hour) and completely silent (even without a bypass valve).
E
Eldirwars19 Jan 2024 11:21No, nothing was explained to me there. My heating technician was actually shocked that I even accessed the service menu and said that if I change anything there, it might stop working completely. But in the regular menu, you can’t adjust anything, not even the heating curve or flow temperature. You can only set the optimized temperature, etc. And yes, when it’s defrosting, it’s also extremely noisy, but that’s only the pump; my noise comes from the hydraulic balancing valve (HBV). Maybe I’ll find more information on that. The compressor fan noise—I have noticed that too—it runs at 100 percent during defrosting.
E
Eldirwars19 Jan 2024 21:16Could it be that the supply pressure is too high? When I listen closely at each floor, I hear distinct noises. This makes me wonder if there is too much flow passing through, which could explain the high consumption. How do I adjust this?
R
RotorMotor19 Jan 2024 21:23Is it really just the sound of water, or are compressor vibrations being transmitted to the house? Do other people in your house hear the noises as well, or is it only you?
E
Eldirwars19 Jan 2024 21:47When I shut off the valve at the manifold so that no water can flow, everything is silent. The noise wouldn’t necessarily bother me, but my girlfriend has serious trouble with it and is already considering moving out.
R
RotorMotor19 Jan 2024 21:55I think I and many others could help better if you respond more precisely to questions.
Similar topics