Last seen: Oct 18, 2025
@jamespa many thanks. will do
@jamespa thanks for the advice. If I am tweaking the curve for low temps, should I first increase the Maximum outgoing water temperature in Heating mo...
@grantmethestrength I'd be interested to hear more about your Wavesure Modbus to ethernet adapter install. I can provide my email if you don't want to...
@grantmethestrength 2101 is irrelevant is it not if the WC is on (2100)? On an aside, it sounds like you had a better installer. Have you been told ...
We have a Grant Aerona3 as well. We are not on Octopus Cosy as I am still learning the system and am not sure if it is better to warm the house on the...
@damonc interesting! It all depends on your house I reckon. If your insulation is not wonderful as ours isn't, 2C might be reached too quickly and if ...
I realise now that this hysterisis setting is controlling when the heating comes on e.g. Heating : Outgoing water temp ≥ Water set point (parameter 21...
@damonc If we are talking about a Grant Aerona3, 2141 is not the frost protection hysterisis - those settings are in group 43. 2141 controls when the ...
There is one other setting in the Grant heat curve group which is the Hysteresis of water set point in heating and the default is 8C. Am I right that...
Many thanks for that advice. I did think it was a bit crazy. The previous owners would not made these settings as they were in their 80s.... I have ...
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
If you saw it with your own eyes I wouldn't attempt to ...
By AndrewJ , 8 hours ago
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Our 7kW Vaillant is wall mounted, no problem neat insta...
By Judith , 8 hours ago
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RE: Replacing my 18 month old ASHP
@trebor12345 @jamespa If it helps any this documents...
By RobS , 9 hours ago
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RE: Cashback Incentives That Reward Shorter Ideal Heat Pump Warranties
Comment to bring this topic back into the spotlight for...
By Mars , 10 hours ago
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RE: Maintaining temperature on windy day
I used to, but now I am retired. Mostly I miss doing th...
By cathodeRay , 10 hours ago
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RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
Quick update, Solis AI looks like work in progress. Had...
By Batpred , 11 hours ago
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@davidalgarve that sounds like the recommended method, ...
By F1p , 13 hours ago
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RE: Extend the colder range of the weather compensation curve?
Daikin has a slope WDC which changes per degree of temp...
By RadWhisperer , 15 hours ago
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RE: Why Millions of UK Homes Struggle With Heat Pumps
The idea (and at least one similar product) has been ar...
By JamesPa , 16 hours ago
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RE: Getting the best out of a heat pump - is Homely a possible answer?
In a nutshell, yes- set weather compensation curve and ...
By benson , 20 hours ago
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RE: Commencing on an ASHP Installation Process
@sheriff-fatman looks very nice. And good shout check...
By benson , 20 hours ago
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RE: ECO4, ECO3, ECO2, ECO1, HUS, BUS, GBIS Dedicated Support and Advice
@toodles very happy too (I have no vested interest othe...
By Bart , 20 hours ago
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RE: Boxt Heat Pump Installation Experience
By Andrew J H , 1 day ago
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RE: Don’t Install a Heat Pump Until You Read This
I feel for you. I have never done a major 'build' per...
By JamesPa , 1 day ago
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Threeway Diverter Valve question
I am looking at a few upgrades/fixes to my Grant Aerona...
By Grantmethestrength , 2 days ago
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Thank you! I use plotly in python, with the data comi...
By cathodeRay , 2 days ago
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RE: 10kw heat pump run in 24*7 data?
Vaillant are pretty good maintaining their ...
By JamesPa , 2 days ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp
So this morning marked 24 hours up for installer. Rooms...
By Crimson , 2 days ago


