ᐅ Heat Pump Energy Consumption in 2019 on a Monthly Basis

tomtom79 schrieb:

Be careful, here ground source heat pumps are being compared with air-to-water heat pumps. Ground source heat pumps have a much better seasonal performance factor but are significantly more expensive due to the drilling.

This does not change the statements regarding the efficient operation of a heat pump.

Bookstar schrieb:

So, the ERR are set to 2-3 in the rooms that are not used and to 5 in the living areas. Could this be the reason for the inefficient operation?

Set all ERR manually to the same level and eliminate larger temperature differences within the thermal envelope. Perform a hydraulic balancing and, if necessary, heat the bathroom with a portable heater.

The ERR also consume a lot of electricity. I have 24 heating circuits and one ERR uses 1.5 W. That amounts to over 300 kWh per year (!)

michert schrieb:

Manually open all electronic radiator regulators (ERR) and eliminate significant temperature differences within the thermal envelope. Perform a thermal balancing and, if necessary, heat the bathroom with a portable electric heater.

The ERR also consume a lot of electricity. I have 24 heating circuits, and one ERR uses 1.5 W. That adds up to over 300 kWh per year (!).

Wow, that’s incredible. Why do they consume so much electricity?

How do you properly adjust the flow on the underfloor heating manifold? I mean, fully opening the ERR is not a problem. Adjusting the heating curve at the boiler isn’t either.

But how do you set the flow control valves?

That depends on your ERR. Mine are normally closed without power. This means I would have had to set all rooms to 6 on the control panel to have open heating circuits. All actuators would be running continuously.

First, set all ERR to 6 and see what happens. Then lower the heating curve. It takes a few days for the house to stabilize.

This is a science in itself; you are adjusting how much water flows through the heating circuits per hour. The general goal is to have roughly the same temperature in the return line of each heating circuit, as well as a specific temperature difference between the supply and return (follow the manufacturer’s specifications). However, it takes a few weeks to set this up correctly. It also depends on your system, and you need to ensure the minimum flow rate. Head over to the pink forum for more information.

What setting do you have your ERR on? All at 3 or at 5? Are they all the same?