Last seen: Jul 24, 2025
A bit more analysis, but with the caveat that the data sets are small. I have however removed the double 1.18 correction factor, the data used in this...
@jamespa - I think I might be getting somewhere. (1) the current midea data file you have (and I have been using) does have a double 1.18 correction...
I agree it's all about choice, and I am trying to choose a method which gets a good enough answer, without unnecessary effort, in a reasonable time fr...
I agree with the first part, and have been at pains to point them out, so they can be critically examined, but not the second part. I do not do 'here ...
@jamespa - I have other things to do today, as the sun is out, and so will return to it later. I also need to clear up whatever is goofing my spreadsh...
OK, I suppose the expected energy in is also a modelled value, but the point is that it is a very simple process, using two variables, OAT and observe...
The setback did start on the 4th November, at 2100 hours. As noted earlier, the first and the last days are not typical, they only include 3 rather th...
There are some rather odd things going on! The long post I have just posted (I think) still remains as a draft, despite having clicked ADD REPLY, so I...
When a specific ratio mysteriously reappears something is usually not right! Now i think I might know what it is, and it is the old gremlin of having ...
@derek-m - it's in the post (and is repeated in a reply to @jamespa I am about to post). In short, it is the equation given by the spreadsheet for the...
I agree, but at the moment the results are quite far apart. That is what we have to reconcile. One method is over-correcting, or the other is under-co...
I haven't forgotten there is at least one other way to approach this problem: compare the observed energy use during a setback with the expected energ...
Latest Posts
-
RE: The good, the bad and the not that great – my heat pump installation
Said I would pop back with a update. Only Mr Jesus h...
By Burtis , 4 hours ago
-
RE: No-code, plug-and-play monitoring for your heat pump
@cathoderay i will have to take a look at that, tbh as ...
By Grantmethestrength , 4 hours ago
-
RE: Buffers, hot water and cooling
Thats presumably heat pump DT, what about radiator DT a...
By JamesPa , 5 hours ago
-
RE: Benefits of an extra horizontal loop for GSHP
I have no direct knowledge of GSHP ground loops but it ...
By Abernyte , 13 hours ago
-
RE: Who's your electricity provider and what's your tariff?
@chandykris Exactly the same here. We now have 13.5kWh ...
By Old_Scientist , 15 hours ago
-
Compressor and Evaporator Stratification
I have had a few issues with my Hitachi spilt heatpump ...
By trebor12345 , 16 hours ago
-
RE: Wood burner with ASHP - direct air?
This depends on the size of your wood burner and size/t...
By Lucia , 1 day ago
-
RE: Difficult positioning of air source heat pump
@rikiarn It's a not a buffer it's a volumiser which is ...
By Lucia , 1 day ago
-
RE: Is your heat pump insured?
To make things clear, lots of insurance companies cover...
By Lucia , 1 day ago
-
RE: Boxt Heat Pump Installation Experience
@adrian any updates since installation? How is it perfo...
By Ashfp , 2 days ago
-
RE: Say hello and introduce yourself
Hi @seatonian - Yes, I know Seaton, and I have the Nat...
By Transparent , 3 days ago
-
@seatonian got your email. Will connect you with a reco...
By Mars , 3 days ago
-
@downfield and @toddles, this isn’t in the settings cur...
By Mars , 5 days ago
-
RE: Homely launched for Grant Aerona ASHP control
I haven't bought the Aerona Smart Controller (£700!) bu...
By Prunus , 5 days ago
-
RE: Antifreeze top up for my heat pump - is this a rip off?
For the record, Grant supply ethylene glycol for their ...
By Prunus , 5 days ago
-
RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
@skyefarmer amazing. Well done!
By Mars , 6 days ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Ebac 5kw - Monobloc R32. Developed and made in UK - Mit...
By marcinwloch69@gmail.com , 1 week ago
-
RE: Is a Valliant Inline 6kW heater a BUS buster?
Just another thought - it might be worth thinking about...
By JamesPa , 1 week ago
-
RE: BUS Grant: removal of all other fossil fuel heat sources
@rikiarn - just have a think as to how much it will cos...
By Transparent , 1 week ago
-
Don't do much digging around.That's best left to the pr...
By Transparent , 1 week ago
