There is only one TRV in the living room because the other valves are not thermostatic. I would need to replace those to achieve what you describe. But then I think that’s not the way to go because it could damage the pump from what I hear.
The boiler is a Remeha Tzerra Ace which supports Opentherm with modulation. It’s also wired on the opentherm contacts and the T6 supports it.
Ah no there is one of those expansion vats in between. It’s not huge but it doesn’t need to be.
The issue I’m trying to solve is to heat a room upstairs whilst not having the boiler in a constant ‘on’ state (the main thermostat is modulating and uses OpenTherm to communicate but that’s beside the point).
A use case: say I’m going to work in my room upstairs. It’s currently 18°C. The living room, where my main thermostat is, is 18°C. I have my coffee in the living room, causing my automation to recognize I’m in the living room.
I move up to my room and set my comfort temp to 20°C. The thermostat in the living room adapts to that. So does the TRV in my office. Since the setpoint of the main is higher than the measured room temp, it sends a heating request to the boiler. One of the radiators in the living room is closed, since the presence detector don’t show occupation in the living room.
In this case, my office might not make it to 20°C before the living room does. The pump stops and no newly hot water gets sent to my office even though the valve is open.
Bottom line: with the current blueprint I mentioned, everything works moderately well. What I want to avoid is to have the boiler heating water if the only occupied room is already at its setpoint. What I want to achieve is more control over when the boiler should heat water (and also pump it around) so that I don’t have to heat the living room when heating, say, the bedroom.
Oh and as far as the time between presence sensing and heating goes: I’m fine being a little chilly for ten minutes. Like I said, I keep every room at a minimum of 18°C to make sure it never takes too long to heat if I want it.
What’s the worst thing is that the rhetoric they keep spouting is just verifiably false. They say stuff like “the left has been destroying this country for long enough” even though the last five or six cabinets have been dominated by the largest right-wing party.
It’s a simple trick: take a general issue that is visible throughout the largest part of the population, pick a scapegoat, preferably one you can generalise, then promise a bunch of stuff you’ll never be able to pull off without dismantling democracy.
Currently, the far right is just blaming all kinds of institutions that are supposed to protect our systems. Their plans are all short sighted bullshit that’s so easily checked for its faults that’s it’s just easier to say it’s being criticized for ideology rather than content. Anyone who would take a second look at what has happened for the last two years should be easily cured from their far right views but these voters don’t take the time to actually look into the numbers and plans. Their attention span for politics doesn’t stretch much farther than yelling about immigrants and taxes.
I am not optimistic about the results of today’s election.
I have something similar, a helper called ‘Awake Mode’ and a helper called ‘Night mode’ (for some automations I need something to be true not to happen).
With a shortcut button on the door in the bedroom I can activate Sleepy mode and on weekdays, it also activates on my wife’s alarm.
A lot of my automations have the condition that Awake mode needs to be on our nothing happens.
A Trump was elected here but he fucked it all up within a year without even having managed to improve or ruin anything.
We have good hopes the next government is gonna get it right.
Containerized software. The main advantage of this is that every application, or stack of applications, runs in its own ecosystem. You can restart a container whenever without having to reboot your entire system. You can store all data off a container in a volume, so if you hit a snag, you can recreate the container without actually losing any of your configs.
You can also create networks so that apps run in different subnets than other apps.
Very simply put, a docker container is like a mini system that runs on your main system.
Something else I like about docker is docker compose. You can create a container or stack of containers with a single simple YAML file without actually having to install anything yourself. I manage my containers in Portainer.
English is not my first language and although I can kinda get my point across, technical jargon is a bit of a blind spot. So just to clarify: I have a little vat of say 10 liters connected to the heating pipes. It’s next to the boiler. It contains a rubber membrane in the middle to expand if pressure builds. Is this the type of buffer you’re referring to?