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: Jun 26, 2026
@editor Freezing fog seems to be an ASHP's nemesis. When similar weather is forecast I'll pop downstairs, light the log burner first thing and switch ...
Hi Emma, check what your house thermostat is doing set at 16/17degC. Is it switching the ASHP on and off continuously? If it is that's a very ineffici...
@knukes Hi, thanks for sharing. The Grant weather compensation parameters are quite straight forward to adjust once you get into the settings in the l...
Hi Chris, there's some fantastically experienced and knowledgeable ASHP people here, you've come to a good place for help. As others have said, based ...
@editor Yes, both by Thrift Energy
I don't think you're that far wide of the mark Mars in your estimate. 7/10 'could do better' would be my honest appraisal. ASHP: tidily installed wo...
@derek-m Hi Derek, the primary pump is the one in the ASHP, which for the Grant Aerona range is a fixed pump curve device. It's for exactly this reaso...
@derek-m, correct, the digital thermometers from Amazon Kev gave a link to. Nifty little things. Cost £11 or so on Amazon Prime for 4. The low loss he...
@kev-m Hi Kev, great minds. I've just fitted 4 of these to my newly installed system either side of the low loss header/volumiser, to read the primary...
@hughf The HIVE was by the installer, not Grant. It works for me as I can zone various rooms in the house on smart TRVs to boost temperatures to suit ...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
Posted by: @scrchngwsl "Nothing in our country is de...
By Rob of York , 1 hour ago
-
RE: Electrical works for air to air heat pump
Best, honest advice here will come from @ashp-bobba!
By Mars , 1 hour ago
-
RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews I have read you latest response re buffer ...
By JamesPa , 14 hours ago
-
RE: How will removing the standing charge on gas bills benefit heat pumps?
The BUS grant funding for 2026/27 will run out at the c...
By Rob of York , 1 day ago
-
-
@editor Ouch, sorry to re start the tick. I had assume...
By DavidB , 3 days ago
-
RE: Say hello and introduce yourself
@e-a-west as the good Major said, welcome to the forums...
By Mars , 3 days 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 , 3 days ago
-
RE: Indevolt Batteries UK Support & Info Thread
@editor Hi, To resolve this, please tap on the A...
By Indevolt Tech , 3 days ago
-
RE: Double or Triple Glazed Windows?
Posted by: @singlespeed With 9 years repairing windo...
By Rob of York , 4 days ago
-
@transparent we’re still running a secure version of PH...
By Mars , 4 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 , 5 days ago
-
RE: Passiv Smart Thermostat - Help & Forum Support
Obviously the weather is changeable but there's a defin...
By Singlespeed , 5 days ago
-
RE: Forum updates, announcements & issues
Get the Renewable Heating Hub heads-up on WhatsApp. I...
By Mars , 5 days ago
SPONSORS
