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: Aug 13, 2025
@sarah can you also post a picture of your WC curve. When the heat pump is running under the engineer mode go to running information and input code ...
@rod I don't have monitoring on the Heatpump itself but the house load with my heat pump running is about 1KW and my background is around 200W so at 3...
@rod Thanks for the detail, I definitely haven't seen that behaviour on mine, but mine is a bit too small. I don't believe the Ecodan can modulate th...
@rod what is the difference between your flow and return before the drop outs? I find mine will run continuously if the dT is no closer than 2C ...
@rod what is the difference between your flow and return before the drop outs? I find mine will run continuously if the dT is no closer than 2C ...
Before you were cycling every 20 mins has thst now stopped at 32C. If the temp doesnt drop so that the thermostat turns it back on in 20 mins then it...
Unless we have a really cold winter I think you will use less than you have calculated, my entire house used 5000Kwh start of Nov to end of Mar last y...
@adam_colwell no the unit needs to be running but the temps weren’t any different try again in a bit see if they have changed
@adam_colwell is the unit running or it couldn’t be doing a defrost as the flow and return are the nearly the same. if not check again when it is. I...
thermistor readings are the page below where you got the pump speed from. There will be readings for THW1 and THW2 they are your flow and return temp...
Yes apologies it was a sweeping generalisation mine is slightly undersized hence it can’t get the flow temps higher than 40C when it’s subzero outside...
They have well built houses rather than the open barns we have and relatively cheap electricity. I had an air tightness test performed on my house th...
- 26 Forums
- 2,610 Topics
- 60.8 K Posts
- 1,622 Online
- 6,967 Members
Join Us!
Worth Watching
Latest Posts
-
RE: Electricity price predictions
The only way to convince my Mrs is to highlight the cos...
By ChandyKris , 39 minutes ago
-
RE: Seeking ideas / information / commiseration - Pure Drive
That may well be correct. However we don't have enoug...
By Transparent , 3 hours ago
-
@cathoderay up until the last few days the rads have al...
By Painter26 , 5 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
That's puzzling me too. Along similar lines ( forgive...
By colinc , 6 hours ago
-
RE: Rate the quality of your heat pump design and installation
@editor Thank you. I joined because I really liked your...
By claireisamazing , 21 hours ago
-
I cant, but @editor probably can if you tell him roughl...
By JamesPa , 21 hours ago
-
RE: UK DIY Battery: SEPLOS 48V 200Ah x2 + Sunsynk 8K – Safe Installation for Garage Conversion
@madsid I don't quite understand what extra you need...
By Bash , 23 hours ago
-
@transparent thank you. Be Thursday before my mate giv...
By David999 , 1 day ago
-
RE: Peak Energy Products V therm 16kW unit heat pump not reaching flow temperature
@johnd our Peak system is no more. The installer cam...
By DaveC , 1 day ago
-
Hah! Well I guess we're all in the realm of conjectu...
By Transparent , 1 day ago
-
These are a bit hard to read but the information is in ...
By bobflux , 1 day ago
-
RE: Octopus Cosy Heat Pump Owners & Discussion Thread
Ah, not so useful then For sure, hopefully before ...
By JamesPa , 1 day ago
-
Thanks @editor I appreciate that things go wrong, bu...
By venkman , 1 day ago
-
RE: Home energy storage & battery register
AC coupled Pure Drive 10kW battery Solar PV Solis P...
By Little Lights , 2 days ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: ispookie666 Manufacturer: Vaillant Mo...
By ispookie666 , 2 days ago
-
RE: A2A vs A2W: Which Heat Pump Would You Pick?
I'm fairly new to the forum and have not voted. Back...
By ispookie666 , 2 days ago
-
I am seeing an increasing number of occasions when my G...
By DavidAlgarve , 2 days ago
-
RE: End-of-Life Heat Pumps: How Do You Dispose of an ASHP in the UK?
@editor Thanks Mars. I look forward to the subsequent ...
By DavidB , 2 days ago
-
RE: Anyone concerned about GivEnergy?
Fair enough. Its interesting that opentherm (for boil...
By JamesPa , 2 days ago
-
RE: Brand and installer questions for ASHP
A tank solely in the return (upstream of where the retu...
By JamesPa , 2 days ago
-
RE: Home automation and the cloud; is there a better way?
+1 It's not just cloud though. Many devices have repla...
By bobflux , 3 days ago
-
RE: Summer usage. Why is my Vaillant Aerotherm using so much energy on "heating"?
So the red bars are 'DHW' and the yellow bars 'heating'...
By JamesPa , 3 days ago
-
RE: Renewables & Heat Pumps in the News
Critics and naysayers will be negative whatever the gov...
By JamesPa , 3 days ago
-
RE: Microbore heat pump installs
In principle you are almost certainly right, but in pra...
By JamesPa , 4 days ago



