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    With the nefit converter are you able to see...

    With the nefit converter are you able to see variable Target Flows being set for the boiler based on OT? Because the work around which I previously used when I too couldn't get my Vaillant to fire...
  2. I can help with some of this. On my Vaillant too...

    I can help with some of this. On my Vaillant too I see CH Water Pressure as 25.5 from my Vaillant with a VR33 (eBus to OT converter). I thought that was odd, but that is exactly what both the OTB and...
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    If you were using an HGI80 or similar then under...

    If you were using an HGI80 or similar then under the Switches Tab you would see at least 2 relays called CH Valve and Boiler. These track the Heat Demand that is being sent to the BDR91. This isn't...
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    Issues Like?

    Issues Like?
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    Evohome already offers OpenTherm - which does...

    Evohome already offers OpenTherm - which does indeed adjust the CH temp based on the zone demand %.
  6. if the controller cannot show the individual zone...

    if the controller cannot show the individual zone heat demands, then I don't think its possible. This thread could serve as a good pointer who anyone else who has a choice between the HCE and the HCC.
  7. sorry should have been clearer, i'll like to see...

    sorry should have been clearer, i'll like to see the System Summary page of the controller on a HCE80. Because if that can show the individual zones' heat demand, then we can try and work out how....
  8. Can you please show us evidence that the...

    Can you please show us evidence that the controller can show the heat demand from the individual zones of the UFH controller.
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    Taking a battery out from a TRV gives you an...

    Taking a battery out from a TRV gives you an error message only at the next setpoint change, when the controller realises the TRV is no longer taking to it.
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    what happens if during a DHW heating cycle the...

    what happens if during a DHW heating cycle the sensor battery goes dead?
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    This is where OT should, in theory, really help....

    This is where OT should, in theory, really help. The ability to vary the Target flow temperature based on Heat Demand is what is needed.
  12. The thing to consider is that outside temperature...

    The thing to consider is that outside temperature is a measured constant but the orientation of your house can make the temperature differentials in your rooms quite different during the day wrt to...
  13. You don't even need a script to notify you of...

    You don't even need a script to notify you of errors. Just use the inbuilt Notifications feature of the device in Domoticz and set the criteria for notification and the method of notification. In...
  14. If you pull down the new Beta you will get a...

    If you pull down the new Beta you will get a change that keeps the devices updated with whatever value is received from the boiler. Unfortunately Domoticz has very few inbuilt devices that I can...
  15. Really, so what are they expecting in a...

    Really, so what are they expecting in a conservatory? UFH? or are they trying to force the fact that it's in no way integral to the rest of the house, so shouldn't use the supplies of the house?
  16. What do people feel is a better solution for...

    What do people feel is a better solution for devices that track an error code? Keep it at the last error code until the next one or reset the error code, if the error gets reset. With the first...
  17. Ah yes, I can see why, its an issue with the way...

    Ah yes, I can see why, its an issue with the way Domoticz works. To get around that, I think it might be better to just log everything, so that way you know for a fact that a 0 error code has been...
  18. Dont worry, the error code is tracked into a...

    Dont worry, the error code is tracked into a device. If you dont see a device that means you have no Error code. I create devices only for messages that have a non zero value. This way the database...
  19. My changes are now in the main development branch...

    My changes are now in the main development branch of Domoticz, so if you update your code and recompile it, you will get them.
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    Just make sure you don't have a Zone Valve on the...

    Just make sure you don't have a Zone Valve on the CH that shuts off before even the first radiator. That's when the bypass is really needed.
  21. Completely understand. However you have just...

    Completely understand. However you have just shown me that on some boilers the OTB is able to read and display the DHW Temperatures too.
  22. You definitely have a problem with your radio and...

    You definitely have a problem with your radio and it's firmware. This log has some Heat Demand but again only for 1 UFH controller and only for 1 zone within it.
  23. The weird thing is that there were absolutely NO...

    The weird thing is that there were absolutely NO messages from your UFH controller in the dump that you added earlier. I don't know over what time period that dump was taken but I would have expected...
  24. Yes my entire house is heated all day but to...

    Yes my entire house is heated all day but to about 17C, except the Study which goes to 20C. I wanted to know if this was the most efficient way to deal with my single occupancy during the day or...
  25. I guess I will have to work out how much gas I...

    I guess I will have to work out how much gas I use up during the day to keep the Study heated. And then work out how much it would cost to run an Electric heater for that time. But then also add some...
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