Opentherm

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Hello all,

Here i am with another question i have an intergas boiler with an honeywell chronotherm touch thermostat. Now i would like to control my boiler with pimatic. I already found an opentherm gateway kit. But i don’t see a wifi option here, and this is needed because the boiler is in the attick and pimatic is downstairs. Maybe this could work or do you guys have a better idea how to get this working.

Link for the opentherm gateway kit:
https://www.kiwi-electronics.eu/opentherm-gateway-usb-voorgesoldeerd

@derksuh It is possible to connect the OTGW to a RasPi, which in its turn connects to your wifi. Another option is to use a Wifi - serial bridge, i.e. an ESP8266.
There is a new version of the OTGW in development which already integrates with an ESP8266: http://static.tweakers.net/ext/f/uJQtno4JEHuvbxMl5xNQWAX4/full.jpg
I’m waiting on this one

No i have another interesting question, i got my hands on a incomfort gateway from intergas. This can be connected to your network and connects to your boiler through his own wirelles connection. This works with an app. Is it also possible to implement this gateway in pimatic?

Even though this is a 10 months old thread I decided to revive it as it is not relevant to the pimatic version.

@Rene-Arts said in Opentherm:

There is a new version of the OTGW in development which already integrates with an ESP8266: http://static.tweakers.net/ext/f/uJQtno4JEHuvbxMl5xNQWAX4/full.jpg
I’m waiting on this one

There are several esp8266 projects to be found but I could not find this specific one. Is there already more news?

@Harry-van-der-Wolf Jup, coincidence or not, this week I received a set of PCBs for this OTGW version. I am going to build one in the next coming weeks. I’ll keep you informed

What is the link to the article? I could not retrieve it from your image link.

@Harry-van-der-Wolf https://gathering.tweakers.net/forum/list_message/47026209#47026209
This is the article with the links to all source files (Dutch forum, though we’ll be happy to translate some stuff if needed).

I think I can manage with Dutch

@Harry-van-der-Wolf Not quite a surprise to me, but I just stated it for all non-Dutchies over here