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Are you looking for a specific type of wall thermostat which is compatible with Evohome? There are some non-digital Honeywell wireless wall thermostats e.g the HCW80 and also an 'offset' version...

I think you're using the current best firmware for the NanoCUL and these message reception errors are a limitation of the performance of the device+firmware due to variations in the message timing. ...

Hi,

Hmm.... definitely sounds very strange and maybe it was a batch of faulty HR91s. Glad you managed to arrange a refund for the HR91s and hopefully some additional HR92s work as expected. I'd...

Hi,

Did you add the HR91s to zones via the Evohome controller which had previously had HR92s bound to them or did you create new zones when you added the HR91s? If you simply added them to...

Have a search for evohome_rf or evohome-listener. They should be able to provide some of the functionality you're looking for. Evohome_rf can send messages too.

@smar Thanks for trying out the fifo-hang branch and confirming that it receives the HCC80R demand messages OK on your system. With regards to sending, no it's not currently functional on this...

@springgreens I recommend trying the 'fifo-hang' branch of the ghoti57/evofw2 firmware as this is the current active development branch. I've been testing it over the weekend with pretty good...

We're really looking for those longer 3150 messages like Bruce listed, but I couldn't see any in your post. Smar's also confirmed that the listener code should work perfectly if the messages are...

Excellent, thanks Bruce. I think we've got all the info we need and most importantly you've confirmed that there are per zone heat demand values. Unfortunately, as you've also highlighted the ability...

The firmware is work in progress, but I'd recommend the fifo-hang branch of the repo you're using (I've just begun testing it) The error you're seeing in the Domoticz log looks like one of the random...

@springgreens sorry, I wasn't too clear. I was referring to the heat demand information which is shown if you click on System Summary within the Installation Menu (accessed by pressing and holding...

@springgreens

Do you see heat demand information for each of your HCE80 zones on the settings screen on the controller and if so, are they different for each zone? The reason that I ask is that I...

Hi,

I just noticed your post over on the Domoticz forum. I'll post my reply over there.

Dan

Hi,

Unfortunately I think you're unlikely to find any information which clearly indicates compatibility and Glow Worm don't officially support Opentherm. Even with my Ultracom2 I had to just rely...

I think Paul's correct about S4. Google came up with this Dutch manual which labels S4 as the 'Cold water sensor' i.e. flow-in from a pre-heater (Solar Water Heater in this example)....

Yes, just using the HR92s should work OK. I use 16 of the HR92s split into 12 zones without any additional thermostats etc and they work perfectly.


I self-installed my Evohome system in a large...

Yes, it's the optimised start symbol. Here's a link to a helpful document on the Honeywell website which describes all the icons (the second file gives the ones for the newer firmware which includes...

Hi Richard,

I've had a quick search and found a few pictures of the card from your boiler and it's not the same as the one in my Ultracom2. The pictures I found look almost identical to the card...

Thanks for highlighting this work in Home Assistant. It's been a while since I looked at it and it's great to see that there are plans to add HGI80 support. I'm going to reach out to the developer...

A partial solution to Phase 4 which you may already be aware of is the 'Nefit EMS-OT OpenTherm converter' described on this page:

https://myboiler.com/opentherm/worcester-bosch-opentherm/

It's...

My preference would be to retain the Honeywell controller which would still handle system set-up and the background system control, and add a device with neater interface for monitoring and control. ...

Yes, that's correct. The heat demand isn't available via the API, only via one of the controller menus or using a HGI80 type device to monitor the Evohome wireless messages.

Sorry, I should have added some further details. On the controller, if you press and hold on the settings button you get to a menu labelled 'Installer Menu'. If you click on the 'System Summary'...

No, not via Evohome as it only tells you what it has asked the boiler to do, but not the actual boiler status. It is possible to monitor some boilers remotely via Opentherm or other serial...

The only comments I can add are that my experiences with the use of the Evohome controller as a room temperature sensor have been positive. You also have the option to use the temperature sensors...