You basically need to create a script in configuration->scripts. You can add each wiser climate device and set the preset mode to Boost 1h etc. Keep adding all your climate devices with the same setting and then save this. You can then add a button in the UI to call that script. As such you can create different scripts for your different ‘scenes’ you want to create. If the boost presets don’t suit, you can also create a script to call a service on each climate device and call the wiser service with custom boost time/temps or just set temp to a certain level with climate - set temperature service.
Is that exposed and available now as in the integration? I couldn’t see it. Is it aggregated anywhere?
Apologies I’ve only been using HA for a week.
I could crudely calculate the max heat demand by taking the maximum delta between measured and setpoint across all rooms.
For example if the delta > 4 deg C in any room then that suggests I want to warm a room up quickly, therefore the boiler flow temperature should rise. If the the max < 1 deg C, then the boiler flow temperature can reduce.
My alternative option is to get a hardware opentherm interface shield on an Arduino to convert the flow temp setpoint from the Heat Hub to MQTT and then use that value to set the flow temp on the boiler. I havent found any details of the drayton technical opentherm algorithm.
Great, I’ll take a look. Does that mean that to turn the HW from on to off while keeping the schedule active I have to set the hotwater.mode to off and then back to auto a few seconds later?
My use case for this is to implement HW priority, so that if the Hot Water comes on while the CH is on, the Central Heating zone valve gets switched off by an automation setting “away mode”. When the Hot Water has finished heating the " away mode" is removed. During the HW heating period I also increase the flow temperature.
No problem on being new to HA. Happy to give assistance to get you up and running and enjoying a great community app.
Yes it is there now. I don’t have an opentherm boiler so am making an assumption that Wiser just uses the demand values the same. For each room (ie each climate device), if you go to developer tools and states and pick one of your climate devices (ie rooms), you will see all the additional attributes available. If you google how to use attributes in automations, you will find loads of help. Screenshot of one of mine below to help.
You can also see the overall demand for a heating channel by looking at the attributes on Wiser Heating entity - which maybe the one you are looking for in your use case as I think this is what is being fed to the boiler for demand.
Hot water on wiser has basically 3 modes, on, off or auto (on schedule). You can also override the current schedule setting (which i think is what you want) but currently the integration doesnt do boost for hot water - its an open issue on our github. The update coming soon will do that but only to turn it on when schedule is off. However, we can also add a function to override to off also, which i will try and add before release. This will then override the current schedule state until the next schedule time event.
Perfect, that looks exactly what I’m looking for, thank you. I’ve mapped the overall percentage demand to a water flow temp setting which has saved me messing about with more hardware if it works. I could even apply a multiplier dependent on outside temperature being low.
DIY weather and room compensation without an Opentherm boiler.
'<10% to 45 deg C
'>10% to 50 deg C
'>50% to 55 deg C
'> 80% to 70 deg C
As a reminder, there are some really good ideas and enhancements on this thread. Whilst we’ll discuss them here if its a gap/enhancement feel free to log an issue on github, this way we can track them easily…
Apologies if this has been answered already, but does this component access the Drayton system locally to control it, or does it rely on their cloud service? I’d heard that the Wiser system had a local API, but not seen that confirmed, or whether this is using that.
A friend of mine has a very unreliable Internet connection, so he’s looking for something that has the least reliance on cloud services. This sounds like it might fit the bill, but wanted to double check before advising him.
Locally, it does not talk to Drayton Cloud, it talks to the heathub itself (via REST).
Personally I think thats its strength, the standard UI works, nothing is dependant on HA and most importantly family friendly!! (wife, kids, dog can still use the wiser app)
The phone app first tries to collect locally, if it cant it then goes via the cloud. So if Drayton Wiser goes bankrupt, disappears, your heating will still work, the app will still work (locally) and all is happy.
Ive also had occasions when the Drayton cloud link isnt working, I then use wireguard to vpn to home, and then run the wiser app and it connects instantaneously …
Wiser is by FAR the best and most flexible smart heating system… by far
