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
@derek-m that's correct, too small a night time set back, say 1-2degC, on a digital room thermostat may see the ASHP cycling on and off controlled by ...
Hi @shapingstuff, there is a recent post on enabling and adjusting Grant Aerona weather compensation. It’s trial and error as every house has a differ...
Hi @shapingstuff - you can't set back a Grant ASHP overnight by changing the leaving water temperature setpoint. Ideally, a climate curve offset could...
The wireless thermostat could be dual channel, heating and hot water. If there’s no other timer near the cylinder for scheduling hot water then the wi...
@bontwoody the item circled is the cylinder thermostat. It displays the cylinder temperature. Turn the dial and the display changes to the set tempera...
Hi @ericdo, thanks for update. You’re sadly in a difficult situation. The LA moving the goal posts part way through is par for course. An acoustic e...
@shadowfax good. You have a 4 channel digital programmer, but only one channel, 1, will be used for hot water timing. It's a unit badged up by Grant b...
1pm - 2pm daily is a good time 🙂 I have a small 3.6kW solar PV+battery. In summer hot water is free via any morning solar generation stored in the ba...
Hi @shadowfax - I’m sure we can help. First, what device controls your hot water timing? Do you have a timer unit like the one on the left here somewh...
@ggw there should be a manual flow setting and indicator gauge on the system pipework. Grant fit one looking like this. It indicates flow in litres/mi...
@roamingbull You running on weather compensation? If the house is too cold when it's milder and warmer outside you may need to flatten the WC curve a ...
@ggw I think you've nailed the issue. Very odd. I think you may have a faulty outdoor temperature sensor probe, if the unit is under warranty this ...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Indevolt Batteries UK Support & Info Thread
I've got a podcast recording scheduled this week where ...
By Mars , 9 hours ago
-
RE: Renewable Heating Hub Homeowners' Q&A Podcast
I’m a little late posting this, but it’s genuinely one ...
By Mars , 9 hours ago
-
RE: How should the Boiler Upgrade Scheme be reformed?
Ah, that makes sense when a combi is in place. The boil...
By Batpred , 12 hours ago
-
RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
@bobflux Thanks, that gives me something to check the i...
By Paul1098 , 12 hours ago
-
RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
Without doing some research I can't immediately answer ...
By JamesPa , 14 hours ago
-
RE: Tesla Powerwall (2) Calibration Cycles
For Powerwall calibration, avoid forcing repeated deep ...
By EnergyStorageTech , 21 hours ago
-
Over the years, due to the non barrier PEX underfloor h...
By bobflux , 1 day ago
-
RE: Getting closer to a finished Haier system
All the 45° elbows required for getting the primaries i...
By Singlespeed , 1 day ago
-
RE: battery storage without solar
Indeed, current on the grid input = current used for ch...
By bobflux , 3 days ago
-
RE: Who's your electricity provider and what's your tariff?
@papahuhu @papahuhu A lot of tears and sweat went into ...
By Andris , 3 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
We have the same problem, 12 mature trees clip the morn...
By Papahuhu , 4 days ago
-
RE: Solis inverters S6-EH1P: pros and cons and battery options
I had a battery and inverter installed a while ago, my ...
By Batpred , 4 days ago
-
RE: Is This Initial Free Quote From Octopus Trusted Partner Reasonable?
@ltron2 The EPC on our house is A-92, however that i...
By Rob of York , 4 days ago
-
RE: Heat pump branding. Clever, contemporary… or a bit too much?
The layout is confusing - much better like this: We b...
By downfield , 5 days ago
-
RE: Is it just me, or does tradesperson timekeeping and communication drive you absolutely mad?
My experience, backed up by opinions from various frien...
By Majordennisbloodnok , 5 days ago
SPONSORS
