Air-to-water heat pump consumption at 30 kWh per day

What supply temperature do you run, and what are the operating times of the system

30kwh per day is absolutely within range given the area and the temperatures, even rather good!

Although the question is why you need 24 degrees? In summer I would activate the air conditioning and cool down to 21. Crazy!

Yes, I also find it a bit warm, but my wife really is a cold person. We are already trying to turn it down without my wife getting cold. But if she sits with a sweater on in the evening watching TV and shivers while getting the blanket, I’d rather turn the heating up ;-)

If you had designed the underfloor heating straight away for 24 degrees it would have been cheaper. 1 degree higher flow temperature already costs about 2 percent efficiency and then there is the additional consumption.

Still, a hydraulic balancing should be done.

What would have been different then? The installer laid it as tight as possible. Should be about 10cm distance. If we had wanted to lay it even tighter, we would have installed a "different" underfloor heating.

I’ll keep the hydraulic balancing in mind for next winter. We have a smart home and a button with temperature sensors in every room. These each show an almost identical temperature per floor. The ground floor and first floor differ only minimally. The attic (2nd floor) is unfortunately always about 1°C colder. The water already arrives 1°C colder at the manifold there. But that is another issue.

What flow temperature do you run, and what are the running times of the system

At 0°C it’s 30°C flow temperature so that we have 24°C room temperature. Every 5°C outside temperature affects the flow temperature by 1°C.

We just looked at the logs and it’s currently running almost continuously. Some days it pauses between 2 and 6 pm and less often runs a bit less at night. I checked and this is already extreme right now. At the end of December it ran significantly less. I can gladly provide the logs if anyone is interested. I have pretty much everything activated for logging ;-)

What is your humidity level?

Yes, I also find it a bit warm, but my wife is really a cold person. We are already looking to turn it down without my wife getting cold. But if she sits with a sweater on with me in the evening watching TV and shivers while fetching the blanket, I’d rather turn the heating up ;-)

What would have been different then? The installer laid it as close as possible. There should be about 10cm distance. If we had wanted to lay it even closer, we would have installed a "different" underfloor heating.

I’ll keep the hydraulic balancing in mind for next winter. We have a smart home and in every room there are switches with temperature sensors. These show almost identical temperatures per floor. The ground floor and first floor differ only slightly. The attic (2nd floor) is unfortunately always about 1°C colder. The water already arrives 1°C colder at the manifold here. But that’s a different issue.

At 0°C it’s 30°C flow temperature to achieve 24°C room temperature. Every 5°C outside temperature affects the flow by 1°C.

We just looked into the logs and currently it runs almost continuously. On some days it pauses between 2 pm and 6 pm and less often runs a bit less at night. I looked and this is currently extreme. At the end of December it ran significantly less. I can gladly provide the logs if anyone is interested. I have pretty much activated everything for logging ;-)

That all sounds very normal to me. What was the intention of this thread?

How high is your humidity?

It is between 40-50%. Why?

That all sounds very normal to me. What was the intention of this thread?

I couldn't assess whether the values are normal or not. But it seems to be within range. However, if that is not the case, I wanted to intervene early.

Then see how much heat you have produced with 30 kW of electricity.