Hello dear forum community,
we have been living in our single-family house (150 m² (1,615 sq ft) of living space) for several months now. We have underfloor heating throughout and heat with a brine-to-water heat pump (supported by heat recovery from the exhaust air system).
Because we have a photovoltaic system on the roof, we decided against having a second meter (peak/off-peak) and run the heating through the "normal" meter to use as much self-generated electricity as possible.
Therefore, I don’t have an exact overview of the heating consumption. With current sub-zero temperatures (-10 to -12°C (14 to 10°F)), our total daily consumption is about 30 kWh.
With that said, I would like to know if there is any way to optimize the settings of the heat pump to possibly reduce consumption.
A hydraulic balancing was done after commissioning, and every room has thermostatic valves (scale 1 to 5).
The heat pump is equipped with an outdoor sensor; I can adjust the heating curve and the so-called parallel shift.
Initial settings were: room temperature: 20°C (68°F), heating curve: 30°C (86°F).
There are instructions online about the adjustments. They say: open all thermostatic valves fully (to eliminate interference factors) and flatten the heating curve until the desired temperature is just reached.
But: should the thermostatic valves always be set to their highest level? Then I couldn’t regulate upward if I want to!?
What room temperature should ideally be reached at setting 3? 20°C (68°F)? Then the heating curve at 30°C (86°F) would probably be about right. But in that case, the actuator drives must constantly close the valves to "throttle" because otherwise, it would get too warm – and the generated heat is not used optimally? So would it be better to lower the heating curve and open the thermostatic valves more (5 in the bathroom, 4 in living areas)?
I appreciate any tips!
Best regards
James
we have been living in our single-family house (150 m² (1,615 sq ft) of living space) for several months now. We have underfloor heating throughout and heat with a brine-to-water heat pump (supported by heat recovery from the exhaust air system).
Because we have a photovoltaic system on the roof, we decided against having a second meter (peak/off-peak) and run the heating through the "normal" meter to use as much self-generated electricity as possible.
Therefore, I don’t have an exact overview of the heating consumption. With current sub-zero temperatures (-10 to -12°C (14 to 10°F)), our total daily consumption is about 30 kWh.
With that said, I would like to know if there is any way to optimize the settings of the heat pump to possibly reduce consumption.
A hydraulic balancing was done after commissioning, and every room has thermostatic valves (scale 1 to 5).
The heat pump is equipped with an outdoor sensor; I can adjust the heating curve and the so-called parallel shift.
Initial settings were: room temperature: 20°C (68°F), heating curve: 30°C (86°F).
There are instructions online about the adjustments. They say: open all thermostatic valves fully (to eliminate interference factors) and flatten the heating curve until the desired temperature is just reached.
But: should the thermostatic valves always be set to their highest level? Then I couldn’t regulate upward if I want to!?
What room temperature should ideally be reached at setting 3? 20°C (68°F)? Then the heating curve at 30°C (86°F) would probably be about right. But in that case, the actuator drives must constantly close the valves to "throttle" because otherwise, it would get too warm – and the generated heat is not used optimally? So would it be better to lower the heating curve and open the thermostatic valves more (5 in the bathroom, 4 in living areas)?
I appreciate any tips!
Best regards
James
WPC Rubigen schrieb:
And: Are you aware that an increase of 1°C (1.8°F) in indoor temperature results in a 7% rise in energy consumption.Hi WPC Rubigen,
That’s new to me, and quite significant. I’m currently having some issues with the flow temperature. I just described this in another post. Maybe you have some great tips as well.
Best regards and many thanks.