# Grant Aerona HP290 Performance Update **URL:** \ **Category:** Heatpump\ **Tags:** grantr290\ **Created:** [15 September 2026 16:22 UTC](https://community.openenergymonitor.org/t/grant-aerona-hp290-performance-update/30334 "2026-09-15T16:22:22Z")\ **Posts on this page:** 1\ **Showing post:** 8
**Author:** ![Sparkie](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/sparkie/32/38548_2.png) [@Sparkie](https://community.openenergymonitor.org/u/Sparkie)\ **Post date:** [18 September 2026 19:42 UTC](https://community.openenergymonitor.org/t/grant-aerona-hp290-performance-update/30334/8 "2026-09-18T19:42:08Z")
Local control. For EcoNEXT you keep the control panel but swap the cloud-connected box for a raspberry pi (even an old v1 works fine): > [@Econext: Direct local control of Grant HP290 Econet replacement (Plum ecoMAX360i)](https://community.openenergymonitor.org/t/econext-direct-local-control-of-grant-hp290-econet-replacement-plum-ecomax360i/29758): > > I’ve finally managed to get the port working, so I can publish the code slight_smile In case anyone is interested in getting this set up, here’s some instructions, the readme’s in the github repos have a bit more information on this but it’s hopefully straight forward: What you need: Raspberry Pi or similar (emonPi works if you have SSH access) ecoLINK3 USB-RS485 cable (should be currently plugged into your econet300) Setup: Unplug the ecoLINK3 cable from the econet300 and plug it into … The REST API talks directly from Home Assistant to the heat pump, so no extra hardware required, but it’s more hassle to send commands to the device: > [@New heat pump Grant R290 - hot water advice](https://community.openenergymonitor.org/t/new-heat-pump-grant-r290-hot-water-advice/28254/38): > > Someone (Mart?) asked how to get data from the econet controller into Home assistant. This is a work in progress for me, but maybe the attached .yaml file will help. You need to insert the line: rest: !include rest.yaml into your configuration.yaml file, and you need to put the attached rest.yaml file into the same folder, after you have used notepad or similar to ‘replace all’ instances of the ip address (mine is 192.168.1.25) with whatever address you heatpump lives at. Hint: you need to tel… There are other options listed here: > [@Reading onboard data from Grant Aerona HP290 + Control](https://community.openenergymonitor.org/t/reading-onboard-data-from-grant-aerona-hp290-control/29271): > > The Grant Aerona HP290 heat pump uses a [Plum ecoMAX360i](https://hvac.plum.pl/en/product/ecomax-360i/) touch screen controller. It’s a good controller and works well. The Grant HP290 must be the easiest heat pump to integrate with, no special cables or hardware is required, just local HTTP requests smiley Grant use TP-Link hardware (EcoNet300) running [custom firmware](https://www.elektroda.com/rtvforum/topic4097437.html) to post data to [EcoNet24.com](https://econet24.com/). EcoNet service allows every setting to be adjusted remotely and lots metrics from onboard sensors to be monitored with basic graphing… --- _[View the full topic](https://community.openenergymonitor.org/t/grant-aerona-hp290-performance-update/30334)._