Hello everyone,
I would like to save some electricity by replacing the circulation pump of my Viessmann gas boiler.
Unfortunately, I am not sure which one should be replaced, as I have two pumps (one Grundfos UPS and one Biral).
One pump is connected to the heating system and circulates the hot water through the heating pipes. From this line, there is a branch with another pump that is connected to my hot water storage tank on the boiler’s supply line.
Should both of these pumps be replaced or just one? I hope I explained this clearly.
Thank you very much for your advice.
I would like to save some electricity by replacing the circulation pump of my Viessmann gas boiler.
Unfortunately, I am not sure which one should be replaced, as I have two pumps (one Grundfos UPS and one Biral).
One pump is connected to the heating system and circulates the hot water through the heating pipes. From this line, there is a branch with another pump that is connected to my hot water storage tank on the boiler’s supply line.
Should both of these pumps be replaced or just one? I hope I explained this clearly.
Thank you very much for your advice.
The pump for the domestic hot water is needed when the sensor in the hot water tank detects a temperature that is too low. This can happen when water is drawn, causing cold water from the main supply line to flow in, or when the temperature gradually drops as heat is lost from the tank to the surrounding environment. Otherwise, this pump should not be running.
The pump for the heating circuit likely switches off when the domestic hot water pump is running (since hot water has priority). In our system, it also switches off when no water is being drawn from the radiators because the valves are closed, or when the room temperature is reached. Finally, the pump is of course off when the heating is in night mode.
Note: This is just basic knowledge.
The pump for the heating circuit likely switches off when the domestic hot water pump is running (since hot water has priority). In our system, it also switches off when no water is being drawn from the radiators because the valves are closed, or when the room temperature is reached. Finally, the pump is of course off when the heating is in night mode.
Note: This is just basic knowledge.
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