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: Jan 26, 2026
@harriup Morning, yes, my pump speed is 3, flow rate of 9 off the top of my head. does that seem OK? My issue is the fact we've struggled to reach 4...
@gary Agreed, installer needs to look. I did up the operation time to match schedule but it's still struggling to reach temp and it still switched to...
@gary It's already on Std , it was one of the things I checked earlier, I've been watching it for the last coupe of hours, it's just paused the DHW he...
@gary The HW schedule has kicked in for evening showers, despite the timer for pump set to 24hrs the pump has auto switched off for the hot water hea...
@gary Will give it a try, thanks Gary.
@gary Yes the heatmiser is set for 24 hrs running. The reason being we never really know when HW might be needed at the taps, especially the weekends...
@gary I have two of these in the control room, one looks to be UFH manifold side and the other DHW. I have it set 24hr because if it isn't then ou...
@gary Yep, it's on 3. Here are the last two hours of info: Every hour it does this, this is the first winter we've gone through since he...
@gary Weird one, checked with partner, she wasn't using the hot water during this period!
@harriup @gary I really do need some help with this one. It seems my HW never gets up to 47 target now due to defrost cycle running every hour. It g...
@gary That's a good observation on emptying the tank!! I wasn't at home but will check with the other half if she was up earlier than planned. Once ...
@gary DHW was set to heat 1hr prior to this time and has been fine until this morning, it only needs to go from 30 ish to 47 in that hour, it seems to...
- 26 Forums
- 2,618 Topics
- 61.1 K Posts
- 938 Online
- 6,993 Members
Join Us!
Worth Watching
Latest Posts
-
RE: Indevolt Batteries UK Support & Info Thread
Thanks @editor , @indevolt-uk Subject to any comments ...
By JamesPa , 7 hours ago
-
RE: Share Your Experiences with Heat Pump Manufacturer Support
@seoras Sorry to hear that. I found Vaillant very help...
By JamesPa , 7 hours ago
-
The Watchdog That Watched and Waited
On 9 January 2026, Consumer Energy Solutions collapsed ...
By Mars , 11 hours ago
-
RE: GSHP Kaput After 16 Years: New Compressor or Switch to ASHP? Advice Welcome
Cool Energy in Grimsby sell ground source heat pumps an...
By DerekDeLeon , 11 hours ago
-
RE: Valliant Heat Pump Settings
Thats arguably a sign of a good installer - they unders...
By JamesPa , 12 hours ago
-
RE: Electricity price predictions
Well, we have so many cases where rain water mixes with...
By Batpred , 13 hours ago
-
RE: Two heating zones to one zone
@profzarkov They arent obviously wrong, but the only...
By JamesPa , 15 hours ago
-
RE: Towns water feed to air source heat pump system
The DHW circuit cant be separated (well it could, you c...
By JamesPa , 15 hours ago
-
Solis AC-coupled 3kW storage inverter
Solis AC-coupled 3kW storage inverterPylontech batterie...
By MartinRobinson , 21 hours ago
-
RE: My NIBE ASHP Nightmare: No Commissioning, High Bills and a Hostile Installer
As @transparent has observed above, this is not bad, an...
By cathodeRay , 23 hours ago
-
As I was reading this article Mars, I was thinking that...
By Toodles , 2 days ago
-
RE: Tell us about your Solar (PV) setup
Installed in May 2011: 16*Sharp 245 W monocrystalline p...
By txmartyn , 2 days ago
-
-
RE: Say hello and introduce yourself
That doesn't sound 'right' to me. The national Smart ...
By Transparent , 3 days ago
-
RE: Growatt battery disconnected
I doubt this will happen, but I will try and suggest it...
By Eliuccio , 3 days ago
-
Understood. That's why I decided from the outset on a ...
By JamesPa , 3 days ago
-
RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus
On the litigation, I would not go there and definitely ...
By Batpred , 3 days ago
-
RE: Recommended home battery inverters + regulatory matters - help requested
I suppose if your pv inverter packs up, you have a plan...
By Batpred , 4 days ago
-
RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
Firstly check you are using sound power not sound press...
By JamesPa , 4 days ago
-
That’s the solar up and running, I don’t think it’s the...
By David999 , 4 days ago
-
RE: Seeking ideas / information / commiseration - Pure Drive
I agree with @colinc that you can reuse some of it. A s...
By Batpred , 4 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Im trying me best to ignore orangeman, I figur...
By Papahuhu , 4 days ago
-
@toodles That’s way better per kWp performance than our...
By Papahuhu , 5 days ago


