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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.

The add-on covers various use-cases so consider these first before obtaining it.

If you have a supported unit and the right add-on, this allows you to control the Itho devices via the add-on webpage, HTTP API or MQTT.

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.

Supported devices

The following Itho devices are supported or have been tested by the community.

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

Installation

The add-on hardware and installation steps differs per unit type.

• 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.

Remotes and CO2 sensors

• Supported remotes
• About CO2 sensors

Integration

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