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Now get ready to get frustrated with the BDR91 and its inbuilt TPI. It will keep switching the UFH pump on and off several times an hour, which is quite undesirable for an UFH system. What you might...

My guess is based on the Vaillant but it will be similar. The Intergas Cylinder NTC will tell the boiler what the temperature of the water in the Cylinder is. There must be some HW settings on the...

Nope,another missed opportunity, even though the OTB is able to distinguish between CH and HW workloads, it doesn't do much with it. Except when heating HW it goes from 10C to 90C demand only....

I absolutely hate that TPI is built into the firmware of the BDR91. It should have been overrideable. Worse still the relay settings available in the Controller then go and apply to all Relays in the...

Not that I can think of, the software now just gives existing installations the option. What we fought for though was the forced DHWP setting that couldn't be turned off. Thank goodness Resideo...

The Evohome now allows you to implement DHWP regardless of the way the system is piped.
You could always implement DHWP with an X plan with a single relay and using a Normally Open Valve.

Being the guy who coded all this into Domoticz, I have some bad news. Evohome uses none of this information! Infact in the latest firmware, it didn't even query for this information from the OTB. I...

In order to use HW priority, you will need BDR91 controlling the HW and CH loops, in addition to your OTB that fires the boiler.

The data in the Fault Logbook device will tell you what the actual fault is.
see https://www.automatedhome.co.uk/vbulletin/showthread.php?6471-Domoticz-notifications&p=46103&viewfull=1#post46103...

Yes I am already on the post 2025 set up i.e. Single FTTP that does both Broadband and landline. No copper any more. And that allowed me to finally say bye bye Virgin. I was forced to use them...

With Vodafone the landline is free. Doesn't cost us anything and we've had the same number forever. We keep our mobile phones downstairs overnight, so in a real emergency the landline is what will be...

I have always used my own routers. But now with FTTP, the phone line is VOIP and Vodaphone won't give out the VOIP details. So currently am stuck with using the Vodafone router, as without it we...

I had to use terminal 7-8-9 in order to get my OTB to fire the boiler. And because that is undocumented, until I figured it out, I had to use the 240V trigger to fire the boiler and my VR33/OTB were...

I'm guessing this interface can only monitor the OT traffic, it cannot actually inject or alter a command? That would require a gateway?

Or just delete the location and repair the installation to the app.

Care to share your circuit and code?

What is the HW Over run set to? Also when you saw the HW temp go beyond the set point, what was the actual Heat Demand for the HW in the settings menu

I have a single pocket too, and just pushed my evohome sensor into the same pocket. Seemed to fit even with the wires of the previous sensor and Evohome is happy.

I built my own diverter because the off the shelf products all had too many compromises. Having something I could tweak has allowed me to tune my diverter to the point that I have exported next to...

I use a Solar diverter but it doesn't use a temperature sensor, it doesn't need to. It keeps heating the cylinder via the immersion heater, until the immersion heater thermostat has cut off and once...

DHW set point can be changed but not via the API. You can only do that via the radio.
Temporary Override Until is actually the exact way how Resideo implemented the HW Boost. So when you select...

My CS92 does not use batteries any more. And yet it will show a comms failure every so often.
And because I have a log of absolutely every Evohome RF message, it is quite easy for me to go and have...

Because I have the ability to raise the Flow temperature when heating the HW cylinder, I used to time the HW recharge to when the house was the coldest I.e. First thing in the morning and then around...

I guess this completely depends on the usage of your HW. I doubt there is an ideal setting. The one feature I do love in the Evohome wrt HW is Differential. That allows the water temp to drop by that...

The frequency of the comms failure messages is inversely proportionate to the numbers of messages the CS92 sends the controller. Changing, repositioning the batteries etc, just forces the CS92 to...