ᐅ How to Properly Adjust an Air-to-Water Heat Pump with Underfloor Heating

Hello,
I have been searching around and reading the manual for my Elco air-to-water heat pump, but I haven’t fully figured it out yet...

I have a manifold on the ground floor and first floor; the recommendation is to fully open everything, set all thermostats to maximum, and then adjust the heating curve on the heat pump low enough to roughly achieve the desired temperature.
Is that more or less correct?

At the moment, every thermostat (except bathroom/bedroom) is set to 20°C (68°F), and the temperature in each room is about 20.9°C (70°F) (bathroom slightly warmer, bedroom slightly cooler).
However, I’m surprised by the high electricity consumption — it has been 800 kWh in just 2 months.

135 m² (1455 sq ft) living area
Elco Split 7 kW
Circulation pump not yet connected

Thanks in advance
M4rvin

Maybe try turning up the thermostats and do without individual room control? The air-to-water heat pump should then regulate itself based only on the outside temperature.

Have you understood everything correctly? Why do you think the electricity consumption is too high? That is 400 kWh per month in November and December. That could still be reasonable. Are you also heating the basement?

WingVII schrieb:

Maybe try turning up the thermostats and skip individual room control?
The air-to-water heat pump should then regulate itself based only on the outdoor temperature.

Hmm, wouldn’t that cause it to overheat?

Bookstar schrieb:

You understood it correctly! Why do you think the electricity consumption is too high? That’s 400 kWh per month in November and December. That could still be reasonable. Are you heating the basement as well?

Okay, then I could try that. The curve is set at 0.6, so I should probably adjust it down a bit, right?
We don’t have a basement. I just find it quite high compared to other houses...

Why should 800 kWh for November and December be too much? What do you expect from your heat pump?

0.6 is very high, try 0.2 instead.

Electricity consumption for 135 sqm (1453 sq ft) is also significantly increased. There is still room for improvement.