# Heat pump experiment review after two years

**URL:** <https://community.openenergymonitor.org/t/heat-pump-experiment-review-after-two-years/18402>\
**Category:** Heatpump\
**Created:** [16 August 2021 00:30 UTC](https://community.openenergymonitor.org/t/heat-pump-experiment-review-after-two-years/18402 "2021-08-16T00:30:40Z")\
**Posts on this page:** 1\
**Showing post:** 81

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**Author:** ![Timbones](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/timbones/32/20308_2.png) [@Timbones](https://community.openenergymonitor.org/u/Timbones)\
**Post date:** [24 September 2022 12:25 UTC](https://community.openenergymonitor.org/t/heat-pump-experiment-review-after-two-years/18402/81 "2022-09-24T12:25:56Z")

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I have a similar setup to @MyForest, though I pull data from MelCloud and push it directly to EmonCMS without any intermediate files. I find that the fields in `User/ListDevices` has everything I need, including power measurements and flow temperatures.

I can mostly poll it every minute, though sometimes Mitsubishi’s server misbehaves and I need to drop to 2 minutes for a few days.

If you don’t have heat meters connected (aka MMSP) then some power numbers may be missing or estimated. Multiply HeatPumpFrequency (%) by maximum input power to get a good approximation of consumption. If you’re measuring these separately, then use those inputs insteads.

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