ᐅ Air-to-Water Heat Pump – Is the COP Realistic?

Hello everyone,

The COP values in the datasheets are one thing, reality is another. I would be interested to know what COP values your heat pump has?

Mine has 3.5, divided into 3.9 for heating and 3.2 for domestic hot water. Is that okay, or should the values be higher?

My car consumes 9 liters of diesel per 100 km (approximately 26 miles per gallon). Is that good? Based on the information provided, it’s not possible to judge.

The same applies to the COP you calculated for your heat pump.

Try searching for a heat pump consumption database. It is a list of around 250 heat pump owners, including COP values, consumption, and heating circuit temperature data. You can compare your values with theirs. However, keep in mind that this list is primarily populated by users of a home technology forum, many of whom are technically knowledgeable. As a result, they tend to optimize their systems afterward.

Alternatively, there is a 2020 study by the Fraunhofer Institute with about 50 heat pumps: "Final report WPsmart in existing buildings." It also includes profiles of all the systems and buildings examined.

And don’t forget that the COP has no significance in this case. The seasonal performance factor would be the appropriate choice here, which varies regionally. Still, it is more suitable for comparison than the COP.

Grantlhaua schrieb:

Hello everyone,

The COP values in the datasheets are one thing, reality is another. I am curious, what COP values does your heat pump have?

Mine is 3.5. Split into 3.9 for heating and 3.2 for domestic hot water. Is that okay, or should the values be higher?

If your values were measured over the entire year, then at first glance there is no need to worry. Without knowledge of your building and many other factors, my assessment is very general. However, there should be room for improvement. Good values are above 4.5.