# New heat pump Grant R290 - hot water advice

**URL:** <https://community.openenergymonitor.org/t/new-heat-pump-grant-r290-hot-water-advice/28254>\
**Category:** Heatpump\
**Tags:** grantr290\
**Created:** [15 March 2025 09:55 UTC](https://community.openenergymonitor.org/t/new-heat-pump-grant-r290-hot-water-advice/28254 "2025-03-15T09:55:30Z")\
**Posts on this page:** 1\
**Showing post:** 155

<div class="post-metadata">

**Author:** ![glyn.hudson](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/glyn.hudson/32/35003_2.png) [@glyn.hudson](https://community.openenergymonitor.org/u/glyn.hudson)\
**Post date:** [27 May 2026 01:26 UTC](https://community.openenergymonitor.org/t/new-heat-pump-grant-r290-hot-water-advice/28254/155 "2026-05-27T01:26:44Z")

</div>

Well spotted! Yup, it’s pointless trying to cool with rads. But it’s cool the unit can support cooling

> [@Grant HP290 Enable Cooling Support white\_check\_mark](https://community.openenergymonitor.org/t/grant-hp290-enable-cooling-support/30030):
>
> Despite what the manufacturer says the Grant HP290 actually supports cooling ‘out-of-the-box’! Thanks to @LeeNuss for figuring this out, I followed his instructions and it works grin These steps are copied from @LeeNuss 'a post on the other thread Cooling support needs to be enabled for the heatpump. Either in the HA integration or via the 0000 service menu → Main heat source → Cooling support Circuit type must be set to either UFH or Fan Coil - radiator circuits don’t support cooling. (…

---

_[View the full topic](https://community.openenergymonitor.org/t/new-heat-pump-grant-r290-hot-water-advice/28254)._