Last seen: Jul 4, 2025
@derek-m my system always had weather compensation. For me the big issue was actually radiator balance as before that point I needed the high heat to ...
@derek-m as a note you can use the function "FORECAST" in excel to recreate this chart. All you need are the two set points and a desired value e.g. 5...
@derek-m It doesnt matter what I set the thermostat to. Originally I had it on 22, but moved it to 21.5 to prevent a boiling house if the experiment w...
@kev-m actually I used LESS power. You can see from below the details of the days. And of course as soon as I said it, I was wrong. My heating go...
@derek-m if its like my system its topping up the water temperature and then just running the pump to push the warm water around. If you go into the o...
Some initial feedback on how my weather compensation is going. The main point would be that when it was 13 degrees ambient for 2 days last week my COP...
@derek-m house continues to hold at 21°. Thermostat is set at 21.5 and it just can't make it - so I'd say that's a win for weather compensation. I jus...
@derek-m I think I'm getting somewhere. I've had my thermostat set on 22 all morning, and the house is holding at 21 - it doesn't seem to be gaining a...
@derek-m I am quite lucky that I can view every day via the app, however its not great. I can see a previous day only as a summary and not actual. b...
@derek-m I think I need to work on the curves and flow, as it was 19 degrees downstairs this morning, and it should be 21. Its warmed up now, but I ne...
I've also just discovered my minimum flow temperature is 25°. I can't go lower than that
Question, the HP seems to be cycling off before the thermostat says the room is heated up. Is this normal? Perhaps the return water is warm enough tha...
Latest Posts
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@eliuccio good to hear you’re happy with the install. A...
By Mars , 47 minutes ago
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RE: No-code, plug-and-play monitoring for your heat pump
The issue with the Grant is that you have to wire direc...
By Grantmethestrength , 16 hours ago
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RE: Is this just haze or something more?
I am not a scientist nor a meteorologist and I know the...
By Toodles , 16 hours ago
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RE: Benefits of an extra horizontal loop for GSHP
It will improve performance, but by how much depends on...
By Brendon Uys , 21 hours ago
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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 , 1 day ago
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RE: Buffers, hot water and cooling
Thats presumably heat pump DT, what about radiator DT a...
By JamesPa , 1 day ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Exactly the same here. We now have 13.5kWh ...
By Old_Scientist , 2 days ago
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Compressor and Evaporator Stratification
I have had a few issues with my Hitachi spilt heatpump ...
By trebor12345 , 2 days ago
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RE: Wood burner with ASHP - direct air?
This depends on the size of your wood burner and size/t...
By Lucia , 3 days ago
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RE: Difficult positioning of air source heat pump
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By Lucia , 3 days ago
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RE: Is your heat pump insured?
To make things clear, lots of insurance companies cover...
By Lucia , 3 days ago
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RE: Boxt Heat Pump Installation Experience
@adrian any updates since installation? How is it perfo...
By Ashfp , 3 days ago
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RE: Say hello and introduce yourself
Hi @seatonian - Yes, I know Seaton, and I have the Nat...
By Transparent , 4 days ago
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@seatonian got your email. Will connect you with a reco...
By Mars , 4 days ago
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@downfield and @toddles, this isn’t in the settings cur...
By Mars , 6 days ago
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RE: Homely launched for Grant Aerona ASHP control
I haven't bought the Aerona Smart Controller (£700!) bu...
By Prunus , 7 days ago
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RE: Antifreeze top up for my heat pump - is this a rip off?
For the record, Grant supply ethylene glycol for their ...
By Prunus , 7 days ago
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RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
@skyefarmer amazing. Well done!
By Mars , 7 days ago
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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
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RE: Is a Valliant Inline 6kW heater a BUS buster?
Just another thought - it might be worth thinking about...
By JamesPa , 1 week ago
