Author Topic: OpenTherm support  (Read 2263 times)

SMA

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OpenTherm support
« on: May 27, 2007, 03:20:37 pm »
Is it possible to implement the OpenTherm protocol in LinuxMCE?

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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: newbielink:http://www.opentherm.org [nonactive]

Hugolp

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Re: OpenTherm support
« Reply #1 on: May 27, 2007, 04:02:29 pm »
LinuxMCE has a good implementation on Zwave. What are the technical and price adventages of this standard?

Hugo

SMA

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Re: OpenTherm support
« Reply #2 on: May 28, 2007, 01:07:35 pm »
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

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Re: OpenTherm support
« Reply #3 on: May 28, 2007, 05:42:47 pm »
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.