OpenTherm support

[SMA]

Is it possible to implement the OpenTherm protocol in LinuxMCE?

What is OpenTherm?

OpenTherm is the name of a non-manufacturer-dependent system of communication between modulating heating appliances (central heating appliances and air heaters) and room thermostats. The system consists of a communication protocol and an interface specification. OpenTherm is futuristic system, which combines simple installation techniques with high functionality and future expansion possibilities.

More info at: http://www.opentherm.org

[Hugolp]

LinuxMCE has a good implementation on Zwave. What are the technical and price adventages of this standard?

Hugo

[SMA]

Well, if linuxMCE supports OpenTherm, linuxMCE can directly communicate with central heating appliances and air heaters. Without having to buy a special thermostat with Zwave capabilities. linuxMCE then can act as a software thermostat. You don't have to buy (expensive) Zwave equipment.

[PeteK]

That's interesting.  However, there are a very few supported systems at the moment.  It looks like the system is uses RS-232 as a communications bus.  The modular nature of LinuxMCE should make the creation of a 'device' in the software fairly straightforward.  This would be interesting to play with.  How does Opentherm handle 'zoned' climate control?  It looks like a single thermostat controls a single heater.