# Vaillant inbuilt monitoring vs MID meters

**URL:** <https://community.openenergymonitor.org/t/vaillant-inbuilt-monitoring-vs-mid-meters/24230>\
**Category:** Heatpump\
**Tags:** heatpumpmonitor\
**Created:** [23 August 2023 08:36 UTC](https://community.openenergymonitor.org/t/vaillant-inbuilt-monitoring-vs-mid-meters/24230 "2023-08-23T08:36:31Z")\
**Posts on this page:** 1\
**Showing post:** 209

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**Author:** ![TrystanLea](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/trystanlea/32/31_2.png) [@TrystanLea](https://community.openenergymonitor.org/u/TrystanLea)\
**Post date:** [1 July 2026 19:22 UTC](https://community.openenergymonitor.org/t/vaillant-inbuilt-monitoring-vs-mid-meters/24230/209 "2026-07-01T19:22:11Z")

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We now have two related threads for other brands here:

- [Grant R290 inbuilt monitoring vs MID meters](https://community.openenergymonitor.org/t/grant-r290-inbuilt-monitoring-vs-mid-meters/30119)
- [Cosy inbuilt monitoring vs MID meters](https://community.openenergymonitor.org/t/cosy-inbuilt-monitoring-vs-mid-meters/29826)

and our own testing of the accuracy of the MID heat meters that we use using an in-line electric element: [Heat meter accuracy testing](https://community.openenergymonitor.org/t/heat-meter-accuracy-testing/27306).

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_[View the full topic](https://community.openenergymonitor.org/t/vaillant-inbuilt-monitoring-vs-mid-meters/24230)._