Id like to split out space heating, water heating and standby in the app and bring that through to the heat pump list as well. Then we can place higher/lower on different measures.
E.g In a passivhaus with very low heating requirements, a heat pump is much more likely to spend more time on standby which will drag down it’s apparent COP. Hot water heating will also be a more substantial share of heat demand. The COP while doing the space heating might actually be quite good but the overall average might not reflect that.