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Welcome to the ithowifi wiki!
To buy visit this page https://www.nrgwatch.nl/ (Dutch) or https://www.tindie.com (English).
This Wiki covers the installation and configuration of the add-on for both the CVE and non-CVE units, integration with home automation software and more.
Note: the add-on hardware and software is the result of reverse engineering and endless hours of testing and debugging. It is not endorsed or supported by Itho Daalderop.
The add-on covers various use-cases so consider these first before obtaining it.
When ordering add-on, you need to decide on CC1101 or not. The add-on works fine with add-on but if you want to link existing remotes, you can use the CC1101 transceiver to pair the existing remotes and read its commands and - if applicable - CO2 values.
The following Itho devices are supported or have been tested by the community. Use this table to select the right add-on.
| Device | Type | Add-on | Comments |
|---|---|---|---|
| CVE ECO 2 | Fan | CVE | This unit is also sold by the brand 'Heatrae Sadia' in the UK |
| CVE ECO RFT SE/SP * | Fan | CVE | |
| CVE-S eco fan RFT | Fan | CVE | |
| CVE-S S CO2 | Fan | CVE | CO2 sensor not usable with this add-on |
| HRU 200 ECO | Fan | CVE | Also sold as 'Elektrodesign EHR 140 Akor BP' and 'Heatrae Sadia Advance Plus' |
| DemandFlow | Fan | non-CVE | |
| QualityFlow | Fan | non-CVE | |
| HRU-350 | Heat Exchanger | non-CVE | WTW |
| HRU ECO | Heat Exchanger | non-CVE | WTW |
| WPU 5G | Heat pump | non-CVE | Experimental support only |
The add-on hardware and installation steps differs per unit type.
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Addon for CVE
This applies to the Itho Daalderop CVE-S and related units. -
Addon for non-CVE
This applies to DemandFlow, QualityFlow and HRU-350 and supported WTW units. -
Addon for WPU Heat Pump
This uses the non-CVE add-on but applies to Itho Daalderop WPU Heat Pump like 5G. This is today expirimental and is limited to reading status values only.
Once the CVE or non-CVE add-on is installed, automation is a logical next step. Use either the Web API or MQTT for the basics.
Guidance for modern home automation systems Home Assistant, Node-RED, HomeBridge and Domoticz is covered here
See here how to report issues via GitHub.
On Gathering of Tweakers (Dutch only) forum, there is active thread with users of the add-on. See here: https://gathering.tweakers.net/forum/list_messages/1976492/0