ᐅ Heat Pump Energy Consumption in 2019 on a Monthly Basis

guckuck2 schrieb:

It is especially inefficient to want to keep small rooms very warm, which requires the supply temperature to be set high, while the other rooms are throttled by the temperature control valve because they are supposed to stay cooler. This makes the heat pump less efficient due to the higher supply temperature, and the circulation pump works against closed valves. Not ideal.

It’s definitely better to run a portable heater in the bathroom for 10 minutes a day than to increase the supply temperature and force the heat pump to short cycle.

How often is cycling considered good or normal?

I was able to reduce the hot water cycling from 7 times daily to just once.

For heating, the system still cycles about 13 times daily between 27°C (81°F) and 31°C (88°F).

As little as possible. There is no such thing as "normal." It cycles infrequently if there is sufficient flow, if it is not oversized, and/or if it can modulate deeply. A buffer tank in the heating circuit would also not be ideal.

Currently, I am facing the same issue as before my optimization, with very low flow rates throughout. Upstairs, I can’t even reach one liter, although all valves on the manifold are fully open. On the ground floor, it’s 1.5 liters. Naturally, the rooms upstairs are cooling down as a result, with the bathroom only at 21.5°C (70.7°F).

I don’t know what could be causing this. As a layperson, I would suspect the pump. Does anyone have any advice?

The pump usually has adjustable settings. But basically, 1.5 L is not bad per se; in the end, the differential pressure needs to be correct.

What settings are configured for the pump control?