From the site: with opentherm modulation “the boiler will run for longer periods but it will be producing water at lower temperatures, resulting in less energy being used and maximising the time spent in the higher efficiency condensing mode.” So, longer running times should not be a problem in your setup.
Having seen this webpage https://www.draytoncontrols.co.uk/news/opentherm-explained , which kind of modulation do you have? Long boiler runs are not always bad.
Also, are you able to use the living room TRVs to restrict the livingroom radiators heat output while keeping what you have set as the main setpoint, in the use case you detailed. That would avoid having the main thermostat triggered off too soon.
I’m really confused by your post. The questions don’t seem to match eachother’s. I feel you have not made clear the specific use case you’re troubleshooting.
I am an inexperienced knob on Homeassistant and home automation, that lurks here out of curiosity and to catch some easy crumbs left around.
But, I feel that I know enough about central heating, radiators and thermostats to justify commenting.
The central heating boilers, pretty much always, just work as on-off. With some internal (boiler) logic on safety limits, like the working temp of the radiator fluid.
Thus your obvious question has an obvious answer. The way to have the main thermostat sending a heating request is to lower it’s setpoint temp.
At the same time, the TRVs are supposed to limit/moderate the lowness of the main thermostat setpoint, i.e., to moderate the way in which the main thermostat activates the boiler ‘too soon’. And TRVs allow you to adjust the comfort of each room (as long as the main thermostat is already requiring the boiler to be on).
As for the presence sensors. Radiators take a long time to heat a room. Like dozens of minutes. If the presence sensors work as their name suggests, I feel they are not a good match with radiators. Plz teach me!! How do these work? What happens when you are sleeping, or when siting, reading, or watching TV, or in the computer.
“I’ve heard about central heating systems not enjoying a fully thermostatic valved circuit.”
‘Enjoy’? Ehh, the pump (usually a part of the boiler) and the tubing that make the radiator’s fluid circulate, from the boiler around the house and around the radiators, they are not contructed/designed to have the circuit closed. 100% closed. Thus the recomendation not to put TRVs in all radiators - which could potentially all close off at the same time and damage the circuit (with overpressure). The recommendation is to have at least one radiator with it’s manual valve always open. The recommendation is also improved to have this radiator in the bottom of the house or the closest to the boiler, instead of a radiator in the top floor bathroom where you’ve left open the window to let out the moisture or something.
Again, what is it really what you want to solve?
Money, I’m going to bet it’s money.
The linked article has a dedicated section «1.3.6 Key truth #6: ‘There’s hope’».
I believe you are wrong because you are inconsiderate to the OP and to the other readers, by commenting before reading the linked article.
I believe you are wrong because you moan before doing your (very small and straight foward) part.
You haven’t addressed a key point on this discussion. Which tells me that either you don’t know what you’re writing about – likely! – or you’re pulling a red herring.
Mastodon
Mastodon
After sparing this paper a fair bit of attention I feel I’ve wasted it.
Nowhere in the paper could i find in what conditions the test samples were kept during the experiment. This is pretty basic stuff. At this stage I’d wage sloshing was the issue.
Reading this part of the methodology:
"2.2 Initial sperm analysis
After liquefaction…
[Two paragraphs later, in the same section: ] After this first analysis, the 15 sperm samples were split into two fractions. All the samples were exposed to ‘Parabolic flight’ (split 1) and to…"
Did they liquefied the samples and tested like that? Whaa?
The “After this first analysis” should not be in the “2.2 Initial sperm analysis”. It just shouldn’t!
Then I think “15 sperm samples were split into two fractions”. … “the samples were exposed to ‘Parabolic flight’ (split 1)” — splits, fractions, what a mess!! At this stage I’ve wasted enough.
The paper should be retracted, the reviewers spanked and the editor fired.
Thanks for the thoughtful answer!
I too like to partake into cynical sarcastic self loathing , at times.
And I do like the layered ambiguity to whom your comment is addressed.
Sounds like you just want an snswer.
Well, I’m not a brain surgeon. So, I don’t take myself as qualified to make that risk assessment. I agree that all you said up to ‘without consent’ is a very reasonable starting point to think about it, the answer to it should be made by whomever is qualified to answer it.
As for consent, no pacirnt gives direct consent to who’s in/helping the surgery besides the head surgeon. Why do you claim its need in this case?
I don’t understand either if this is even a problem.
Can Nuclear plant electricity production be run in a decentralised way? No?! Not yet!?
Do we have alternatives to nuclear? Yes!?
We should avoid nuclear then.
From my past reading on tomato plants, they don’t really like temperatures above 88 degF. They’ll not be happy at 100. Maybe, can you shade them?
Sometimes I think if these text creations/press releases are made in one of those Russian-like content factories aimed at polarising people.
I don’t think it would fit. Besides, it is said they should not hide their faces!
“Who would have known that the mighty people of Yemen would challenge the empires of the world,” he added, referring to the Houthi attacks on international shipping in the Red Sea that have led to two nights of retaliatory strikes by the US and UK.
This does not sound like somebody interested in promoting peace.
When are military personel not talking officially? …have you seen Sen. Kelly prosecution by trump-hegseth-dptOfWar, they claim retired military personel do not have free speech, aka they are always bound to speak officially. So, I ask again, when are military personel not talking officially?