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Last seen: Sep 1, 2026
It seems the R32 units tend to show this step pattern (mine certainly does) with a limited number of parking slots, the later R290 ones less so, but s...
My auto-adapt script only makes infrequent changes. If the weather compensation, however achieved is where it should be, then most of the time the IAT...
This illustrates what I am getting at, even apparent steady states aren't really steady states. A building including its occupants, its immediate envi...
@painter26 — they (the analogue gauges) are subtly different, also I can't see the units on yours (mine shows L/min) but most importantly the flow met...
I fully understand your reasoning, same steady inputs should produce the same steady output, but even with your two steady state samples there is cons...
@benson — as @tasos suggests, plotting multiple variables can be very useful. Set LWT, actual LWT, RWT, OAT and IAT on one chart gives a comprehensive...
The way I see it, it is weather compensation, but done through custom code, rather than using the Midea internal control logic. Again as I see ...
@painter26 — as @jamespa says, it's for filling and re-pressurising the main circuit that goes round the rads whenever that is needed, using water at ...
If you look at the side of it, you will see a glass observation port with with a scale marked on it, and behind that a little disk that moves up and d...
I also need to correct something I said by mistake earlier: "Given the relationship between OAT and (power and) energy in is tolerably linear (energ...
@robs — I am still not persuaded that you can take an observation at one OAT from one date, and then say because "the OAT was steady at 6C for multipl...
Thank you! It doesn't sound alarming to me, given the context, occasional, no leaks and sensitive hearing. Maybe other can come up with a (benign...
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Latest Posts
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
Is the flow temperature for the rads and the underfloor...
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By Papahuhu , 11 hours ago
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RE: Adding additional Solar Panels to a DC coupled battery system
A couple more points about placing solar panels at low ...
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RE: How Accurate Is My DIY Heat Loss Calculation?
@kilgorexv definitely a larger inverter will help and m...
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
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RE: Surface mount or bury primaries for heat pump installation?
The installation is almost done! I've written up two ...
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RE: Glass lined Cylinder for private water supply
This has turned into a fascinating little rabbit hole. ...
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RE: Is the "divide by 2900" rule still valid?
There is another estimator that you could use, a formul...
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
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RE: Who's your electricity provider and what's your tariff?
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@rob-of-york I would concur with the underfloor insulat...
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
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