# Independent heat pump design advice **URL:** https://community.carbon.coop/t/independent-heat-pump-design-advice/315 **Category:** Home Energy Systems **Created:** [17 August 2021 09:02 UTC](https://community.carbon.coop/t/independent-heat-pump-design-advice/315 "2021-08-17T09:02:22Z") **Posts on this page:** 1 **Showing post:** 13
### Author: ![zapaman](https://community.carbon.coop/user_avatar/community.carbon.coop/zapaman/32/138_2.png) [@zapaman](https://community.carbon.coop/u/zapaman) #### Post date: [24 August 2021 12:03 UTC](https://community.carbon.coop/t/independent-heat-pump-design-advice/315/13 "2021-08-24T12:03:10Z")
We had our ASHP installed on 8th-9th April this year. So far we are getting an average COP of 3.25 overall; the combined value for space heating (effectively nothing since mid-late May), hot water and the standby consumption. Breaking this down we are getting a COP of 3.68 during space heating and a COP of 2.0 during the hot water cycle. Standby consumption is ~9W (really very low and probably lower than the elec our old boiler was probably consuming) which so far has represented 6% of the electricity consumed by our ASHP set-up. The overall electricity consumed by the ASHP between 9th Apr to 9th Aug has been 382kWh, so the total running cost over that 1st 4months has been ~£70. All these figures will change and consumption will go up significantly once the heating season starts again around late September (normally). --- _[View the full topic](https://community.carbon.coop/t/independent-heat-pump-design-advice/315)._