Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Last seen: Oct 16, 2025
@dgclimatecontrol Thanks... this was resolved back in March/April.
@davidnolan22 Hi..! We've only just turned on the heating again following the summer but it's not overly concerning right now. It's cycling a little b...
@gary The tank is 210 litres. I work from home as a baker so I can use a lot of water during the day but using the old MegaFlo and oil boiler, we neve...
Thanks James, this is still something on the to-do list. I know there's more diagnostics to be done. I was just hoping the new pump would stabilise th...
Thanks. I still need to check this out. It's taken all my mental capacity to wrap my head around the heat pump. So it should be as simple as just adju...
I haven’t looked at that side yet. But so far, the only thing that’s changed is that we’ve had the heat pump changed and COP is getting worse. I can s...
@jamespa It does appear to be going into defrost more frequently than the previous pump at similar temperatures. Would that account for the higher ene...
@jamespa Thankfully they didn’t touch the settings. They checked the pressure on the tank but that’s all.The only work they did was on the external un...
Just a follow up… first full day of the new heat pump… worst COP in weeks. COP down from a regular 3.4 to 3.8 to 2.7 yesterday (that’s just heating, n...
Just a bit of an update... thanks to the information you've shared with me, I was able to argue the case of the oversizing a little better.They revisi...
@jamespa Thanks James. The DHW COP is the worst we've had yet strangely. And there were no big drains on the water yesterday. It's like it's heating...
@jamespa Thanks for this.The COP for yesterday was 3.57 (heating 3.79 water 0.87) so the DHW eco setting might be making a difference but I'll keep mo...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Cooling/heating with one unit
@rob-of-york thank you. Hadn't occurred to me that some...
By mrkfm , 28 minutes ago
-
I had a 3.5Kw arotherm the installed earlier this year,...
By trebor12345 , 1 hour ago
-
RE: Renewables & Heat Pumps in the News
Posted by: @editor I think we should make that approa...
By Rob of York , 6 hours ago
-
RE: Does anyone have experience of a smart water meter?
My neighbour received an email from Anglian Water sayin...
By AndrewJ , 7 hours ago
-
RE: Jokes and fun posts about heat pumps and renewables
Well the military is well known for going green, isn't ...
By Majordennisbloodnok , 8 hours ago
-
RE: Why are ASHP installs so expensive?
I've ripped out over 11kw of storage and panel heaters ...
By Singlespeed , 9 hours ago
-
RE: Safety study for plug in batteries out to tender - looks like Q3 2027 at best before legal
I think it may depend how much of the world is on fire ...
By EtchedPixels , 17 hours ago
-
RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
I hope it's not the same people who make the awful TV s...
By EtchedPixels , 17 hours ago
-
RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
I found some interesting data about the price of heat p...
By Rob of York , 1 day ago
-
RE: PV and battery long payback - sense check query
Thanks for all the comments. I finally got to the bott...
By DavidB , 1 day ago
-
RE: Indevolt Batteries UK Support & Info Thread
People following this thread who are hoping that plug i...
By JamesPa , 2 days ago
-
RE: Passiv Smart Thermostat - Help & Forum Support
By Singlespeed , 2 days ago
-
RE: Help me keep the faith with my air source heat pump installation
just had Vaillant over to service the HP and asked abou...
By AdamK , 2 days ago
-
RE: tepeo ZEB UK Support & Info Thread
OK so ZEB is basically a variant on a storage heater, b...
By JamesPa , 3 days ago
SPONSORS
