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 24, 2026
@iantelescope Good. Why are you expecting the house to cool significantly? If I understand your system correctly your secondary (radiator) p...
PS. I should have added that the heat pump capacity you need may be up to 25% less if you have a very old (ie inefficient) boiler. In the range 6-9k...
On the basis that oil is 10kWh per litre, 1800 litres is about 18MWh. That very roughly translates to a 7-9kW heat pump. You will need to have a pro...
It is clear (and has been all along) that the advice you are receiving from tradesmen is inconsistent with the advice you are consistently receiving f...
@iantelescope As I say in my post above I am sorry to hear about your woes. The fact is that you don't need to pay a further £1500 or anythin...
As @toodles says above. Basically you don't except as a one off when the system is commissioned (or over time) by balancing the radiators using the l...
Overall you seem to have done as much as you can to get a good deal. In fairness to Octopus they have decided on a broad methodology and they are sti...
I think this is the right way to do things in the current market. Tell them what thet need to hear so you get what you want. It seems to me you are g...
That's a bit six of one and half a dozen of the other. In summer you might notice extra heat in the bedroom due to the heat lost from the tank. In w...
So to answer the specific question you asked - no the ashp won't heat up the house when it is heating the water because separate pipes are run to radi...
@ellyse how do you currently heat hot water? The answer to your question is very likely 'no more than than at present' but does depend slightly on ...
I am very sorry for your predicament as I have said on multiple occasions. Regrettably I think I now agree with 'plumbers and neighbours' even thou...
- 27 Forums
- 2,800 Topics
- 66.2 K Posts
- 3,924 Online
- 7,206 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: How will removing the standing charge on gas bills benefit heat pumps?
I think it has an enormous impact on air/air users. The...
By EtchedPixels , 50 minutes ago
-
RE: New Build 3 Phase or 1Phase
The solar is baked in by the building regulations these...
By EtchedPixels , 1 hour ago
-
@editor Ouch, sorry to re start the tick. I had assume...
By DavidB , 18 hours ago
-
RE: Say hello and introduce yourself
@e-a-west as the good Major said, welcome to the forums...
By Mars , 19 hours ago
-
RE: How much of your renewable and home setup would still work if the internet went down?
Yes I actually have a copy of a tool that whenever a ce...
By EtchedPixels , 1 day ago
-
RE: Indevolt Batteries UK Support & Info Thread
@editor Hi, To resolve this, please tap on the A...
By Indevolt Tech , 2 days ago
-
RE: Double or Triple Glazed Windows?
Posted by: @singlespeed With 9 years repairing windo...
By Rob of York , 2 days ago
-
@transparent we’re still running a secure version of PH...
By Mars , 2 days ago
-
RE: How quickly would you want/expect heat recovery to take from setback?
Much longer than that here. The heating isn't even on. ...
By bobflux , 3 days ago
-
RE: Passiv Smart Thermostat - Help & Forum Support
Obviously the weather is changeable but there's a defin...
By Singlespeed , 3 days ago
-
RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@rob-of-york I must admit that when we had a Daikin hea...
By Toodles , 3 days ago
-
RE: Forum updates, announcements & issues
Get the Renewable Heating Hub heads-up on WhatsApp. I...
By Mars , 3 days ago
-
RE: Safety study for plug in batteries out to tender - looks like Q3 2027 at best before legal
@editor I pointed out to the one of the Fuse execs that...
By dansus , 3 days ago
-
RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews As well as loft insulation, there are othe...
By Rob of York , 3 days ago


