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: Oct 1, 2025
There have been a few discussions dotted around (e.g. I think Urban Plumber had a video on YouTube) where the 8.4 kW is not accounting for defrosts, m...
@heatgeek an interesting eureka moment - would provide what certainly sounds like a plausible explanation for the pump arrangement. I will likely ...
@jamespa @heatgeek I'm unsure as to the exact pump in the outdoor unit, but under the impression it is PWM. Flow speed can be adjusted on the pane...
@heatgeek I think it's also worth chucking out into the conversation that there are different degrees of cycling. I have a 12 kW Vaillant, and at t...
@sicky and therein lies the greatest difficulty the simpler the spreadsheet the more assumptions it's making for you. It certainly sounds like you hav...
@benson certainly removes them as an option! Have sent them a carefully worded query so will see what I get back in writing ...
@benson @richard24738 was this flagged by directly contacting them? My policy is up for renewal and I was about to renew as I couldn't see any exclusi...
Turned the setting off on mine as couldn't find anything anywhere that explained what it did with respect to ASHP (only mentioned to do with gas boile...
@old_scientist I made the jump to cosy the other weekend after a few days of lousy solar and no sign of cheap (windy) rates on agile for the weekend i...
@johnmo I did consider asking if you had found overall heat demand / electric usage had increased when you had reduced the cycle time but increased ov...
@johnmo Once you have the heat meter readings going in then hopefully you should be able to get the fully interactive read out (same as the heatpumpm...
Forum Handle: Declan90 Manufacturer: Vaillant Model: Arotherm+ 12 kW Type: ASHP Arrangement: Mono (Double Fan) Area of Country: Leicesters...
- 27 Forums
- 2,775 Topics
- 65.4 K Posts
- 4,310 Online
- 7,180 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Is it just me, or does tradesperson timekeeping and communication drive you absolutely mad?
Yes, and I would suggest likely to get worse with more ...
By Batpred , 4 hours ago
-
RE: Electricity price predictions
This topic seems more suitable for this thread... I a...
By Batpred , 4 hours ago
-
RE: Why are ASHP installs so expensive?
It is clearly difficult to say, there must be cases whe...
By Batpred , 4 hours ago
-
RE: Who's your electricity provider and what's your tariff?
Hi all, I'm new to this game having spent the last 25...
By gz00 , 5 hours ago
-
RE: Panasonic Free Multi Z and Etherea Internal units.
@dgclimatecontrol Thank you for that information and re...
By Toodles , 9 hours ago
-
RE: My Kronoterm Adapt 0312 ASHP is finally installed!
@editor It was serendipitous really. Both my wife and I...
By tomasmcguinness , 14 hours ago
-
@mrkfm, I'd also suggest that whenever you're ready, st...
By Mars , 1 day ago
-
RE: Are you planning to use a wood burner to supplement your central heating this winter?
I use my stove daily for backup and comfort. Definitely...
By Margarethomas , 1 day ago
-
@rob-of-york Thanks. I wish I'd started on this site as...
By mrkfm , 1 day ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
@downfield I just checked this morning and OE just r...
By Papahuhu , 1 day ago
-
RE: Passiv Smart Thermostat - Help & Forum Support
Thanks Will. I'll probably be a week or so before get...
By Singlespeed , 2 days ago
-
RE: Cooling using an air to water heat pump
From experience this summer, a single-split A2A unit on...
By Rob of York , 2 days ago
-
Analysis of the economics of switching to an A2W ASHP compared to other heat sources
This post aims to analyse the economics of installing, ...
By Rob of York , 3 days ago
-
RE: Cooling with air to water heat pumps
@editor does that mean you have to have two separate ex...
By mrkfm , 4 days ago
Members Online
No online members at the moment


