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: May 24, 2026
No it shouldn't, the pressure should stay fixed at what ever you set it to - which is normally about 1.5bar. It should never go to zero and back up t...
It sounds to me as though the bladder inside the expansion tank has failed. I recommend you get this checked as soon as possible before excessive pre...
@dr-h I'm not a heatgeek professional (although I am a geek 😉 ) The heatgeek "pink cylinder" is a thermal store with a coil inside. The water fr...
That'll do it 😉 Can you go lower? Bob
OK, please forgive me, what does that mean? Using less what? Insulation? The installation manual for the Ideal Logic Air says there is a temperatu...
That insulation doesn't very good to me, maybe others can comment. The last picture is different to one of the earlier ones. There seems to be a pa...
OK, so...completely by accident I was reading the installation manual for this heat pump. The manual says it has a "cold start protection mode". "...
Hello, please can you post some pictures of the pipework as it comes out of the back of the heat pump, up the wall and into your house. It looks as t...
The flow restriction to your living room radiator is likely to be the pipes and valves. Swapping the radiator for a fan coil might not give you addit...
You need to adjust the surface emmissivity setting of your thermal camera. Try this, assuming you have a metal kettle with a polished exterior surfa...
Here's a quick spreadsheet I put together that shows how compressor discharge temperature varies according to pressure ratio. The data is based on P...
Just a thought, do you have underfloor heating? The comment "started cycling as the return temp increased" makes me think you're seeing a benefit of...
- 27 Forums
- 2,799 Topics
- 66.2 K Posts
- 1,848 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?
@watcher According to Homely who take their data from t...
By Toodles , 21 minutes ago
-
RE: Indevolt Batteries UK Support & Info Thread
@editor Mystery solved to some extent. Need to selec...
By dansus , 2 hours ago
-
RE: How much of your renewable and home setup would still work if the internet went down?
Interestingly we had an internet outage about a month a...
By Rob of York , 6 hours ago
-
RE: Double or Triple Glazed Windows?
Posted by: @singlespeed With 9 years repairing windo...
By Rob of York , 7 hours ago
-
@transparent we’re still running a secure version of PH...
By Mars , 10 hours 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 , 1 day ago
-
RE: Passiv Smart Thermostat - Help & Forum Support
Obviously the weather is changeable but there's a defin...
By Singlespeed , 1 day 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 , 1 day ago
-
RE: Forum updates, announcements & issues
Get the Renewable Heating Hub heads-up on WhatsApp. I...
By Mars , 1 day 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 , 1 day ago
-
RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews As well as loft insulation, there are othe...
By Rob of York , 1 day ago
-
RE: BT cuts you off, Plusnet blames Openreach... welcome to “seamless” broadband switching
Both of which (in most cases) use Openreach for the las...
By JamesPa , 1 day ago
-
RE: Renewables & Heat Pumps in the News
Yes, this is a swiss and german standard I believe, Vai...
By Batpred , 2 days ago
-
RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@editor FWIW my problem was resolved, eventually, after...
By BigFish , 2 days ago


