Last seen: Mar 14, 2025
@misterB consider tariffs such as Cosy Octopus that offer two 3hr low rates a day. If you can get an EV tariff then so much the better 😉
@marvin91 there’s a separate post for weather compensation on Grant Aerona. It’s quite simple. You’ve got the Grant installation manual? It’s a redact...
@mab I have external clunky digital room stat. I think Grant only use these because few if any of their installers understand how to program the Chofu...
Hi there, just to clarify. On the Grant pre-plumb cylinder, the thermostat dial is the hot water thermostat - a simple on/off device to call for hot w...
@mikefl I have a theory the closeness of the outdoor air sensor on the Grant Aerona's may be causing some adverse response. During defrost the outdoor...
Depending on your weather compensation settings, disabling WC and reverting to constant leaving water temperature would work. Depends on what outdoor ...
@roamingbull or disable weather compensation for a short period and revert to constant higher flow temperature. My 10kW Aerona is defrosting every 45 ...
Welcome to the Cosy corner @Toodles. We pay an average of 20.4p/kWh including VAT & standing charge. 88% of our electricity import is at the low r...
There are specialist cleaning solutions for heat exchanger fin coils. I would recommend you have the heat exchanger cleaned as part of a professional ...
Hi all, crunching year end numbers. I'm on 'Cosy Octopus' 3 tier tariff, and in the winter heating season I schedule charge my 13kW of solar PV batter...
Little spread sheet to play with here , you can change your 2102 max LWT and 2103 min LWT parameter settings in this and see what it does. It shows ...
Yup, 2102 is the main parameter you need to adjust, if you find the house not keeping temperature as the outdoor temperature lowers, then raise 2102 b...
- 21 Forums
- 1,973 Topics
- 42.9 K Posts
- 30 Online
- 2,304 Members
Join Us!
Heat Pump Dramas?
Thinking about installing a heat pump but unsure where to start? Already have one but it’s not performing as expected? Or are you locked in a frustrating dispute with an installer or manufacturer? We’re here to help.
✅ Pre-Installation Planning
✅ Post-Installation Troubleshooting
✅ Performance Optimisation
✅ Complaint Support (Manufacturer & Installer)
Latest Posts
-
@sandman1600 does it have a finishing screed over it...
By davidnolan22 , 4 minutes ago
-
AN INTERESTING NEW ENTRANT BUT WHAT DO WE KNOW ABOUT THEM
Aira, the Swedish, end to end manufacturer, system desi...
By KevinPotts , 8 minutes ago
-
Unfortunately for your argument the best performing Dai...
By RobS , 10 hours ago
-
RE: Setback savings - fact or fiction?
You are almost right and have appreciated the key point...
By JamesPa , 12 hours ago
-
RE: Grant ASHP not reaching target temperatures
@mikefl Thank you. I’m not sure how to do these checks ...
By Hillswick , 12 hours ago
-
RE: Heat Pump Sizing & Installation Costs
100m2 5kw £11000-£7500=£3500 pick 3 radiators
By Adrian , 13 hours ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@adrian I think that the company might argue that if th...
By Toodles , 13 hours ago
-
RE: Transforming a Derbyshire Property into an Energy-Efficient Haven
@carpenterstation That's helpful, thank you. The de...
By Morgan , 15 hours ago
-
RE: What is the best strategy for operating a very oversized heat pump?
@jamespa Homely does address many of these issues, but ...
By Arundalep , 18 hours ago
-
RE: Volumisers in Heat Pump Systems: Does Placement Matter?
There is absolutely nothing wrong with buffer tanks in ...
By JamesPa , 23 hours ago
-
RE: Replacing knackered oil boiler with ASHP - Perthshire
@abernyte thanks tbh I was more thinking about bolsteri...
By DowallyDrifter , 24 hours ago
-
RE: Battery storage to run Heat Pump.
@jeff The government are quite happy for the network ...
By Lucia , 1 day ago
-
RE: Who's your electricity provider and what's your tariff?
@old_scientist The OE guidelines mention that their con...
By Toodles , 2 days ago
-
RE: Adjusting 6kW Daikin's Weather Compensation Curve
@jamespa I'm grateful for your advice.
By Ubert767 , 2 days ago
-
RE: Is it KISS or constant – weather compensation vs. set flow temperature?
Thanks. I've seen the video several times at the beginn...
By cliffhanger , 2 days ago
-
RE: Say hello and introduce yourself
@carrownisky where are you based? Would you like me con...
By Mars , 2 days ago
-
RE: Baxi Air Source Heat Pump tips and tricks please
@transparent Good morning, the installer sorted our m...
By Cathyem1 , 2 days ago
-
@roodo welcome to the forums and I’m really sorry to he...
By Mars , 2 days ago
-
RE: Thinking of ripping our my IVT Greenline HT Plus C model and replacing with a gas boiler.
Don’t rip out a IVT! Amazing heat pump! Unless your com...
By greenlight , 2 days ago
-
RE: Sunamp Thermino Heat Battery
Wow, I knew they were pricey, but didn’t expect it to b...
By Mars , 2 days ago
Latest Topics
-
AN INTERESTING NEW ENTRANT BUT WHAT DO WE KNOW ABOUT THEM
By KevinPotts 8 minutes ago
-
Adjusting 6kW Daikin's Weather Compensation Curve
By Ubert767 2 days ago
-
Should I make my radiators smaller?
By Scalextrix 3 days ago
-
Daikin Heat Pump Cycling Frequency?
By Ubert767 3 days ago
-
Battery storage to run Heat Pump.
By Broadsman 4 days ago