Here is a great fact sheet that explains
OpenTherm is the name given to a form of communication of information between modulating (condensing) central heating appliances and room thermostats. It sets the rules as to how the appliance and room thermostat communicate with each other...
http://www.honeywelluk.com/Documents/Re ... AL_WEB.pdf
What is OpenTherm
Re: What is OpenTherm
We love OpenTherm and evohome and if you need any advice or help please ask!
Home: 2012 Built Oak & Timber Frame Home (EPC Score 95 - A Rated)
Renewable Tech: GSHP, Solar Thermal, Solar PV & 20kWh Battery Storage
Smart Home Platform: Home Assistant, Shelly & Salus Smart Home
Renewable Tech: GSHP, Solar Thermal, Solar PV & 20kWh Battery Storage
Smart Home Platform: Home Assistant, Shelly & Salus Smart Home