Last seen: May 14, 2025
James, thanks again for your thoughtful and persistent questioning — this kind of interrogation helps clarify the strengths and limits of any approach...
Hi James,Thanks again for your detailed thoughts. I appreciate how precisely you're interrogating the claims and looking for practical value — so here...
@johnmo That’s a clever use of defrost behaviour to guide handover — and it sounds like you’ve fine-tuned it well for your setup. Just for reference, ...
@johnmo, I can see what you mean by the heat pump switching over and back between cooling and DHW, but I was referring to the heating season when you ...
@jamespa, following on from your examples — here's how I’d approach each:---a) 100 m² New Build (3kW @ -2°C, typical spec):In this case, structural zo...
That’s a great question, James, and it goes right to the heart of what sets structural zoning apart from conventional approaches like LLHs or buffer t...
@jamespa I want to clarify that my hybrid example was posted specifically in response to Johnmo’s system description. I would not recommend it univer...
@johnmo Thanks for sharing the full schematic, Johnmo. That’s a helpful layout, and it shows just how much manual logic and layout planning are neede...
@johnmo Thanks, I appreciate your detailed walkthrough. It’s always helpful to see how experienced users approach hybrid setup challenges. I agree ...
@johnmo Thanks, Johnmo — fair points as always. I agree that unnecessary complexity has plagued many modern heating setups, mainly where buffers ...
@heatgeek Thanks for your post and for articulating a very real scenario that reflects the kind of system we’ll be seeing a lot more of: low flow rate...
Thanks, James — that’s a really encouraging and fair response, and I appreciate the open-minded way you've approached it.Yes, you’ve summarised it wel...
- 22 Forums
- 2,067 Topics
- 45.3 K Posts
- 36 Online
- 3,339 Members
Join Us!
Trusted Installers
Struggling to find a reliable heat pump installer? A poor installation can lead to inefficiencies and high running costs. We now connect homeowners with top-rated installers who deliver quality work and excellent service.
✅ Verified, trusted & experienced installers
✅ Nationwide coverage expanding
✅ Special offers available
Latest Posts
-
RE: Vaillant & OVO partner up to offer Heat Pump Plus
They don't at the moment at least. They just pull data ...
By ecodan-efficiency , 7 minutes ago
-
RE: How accurate was your heat loss survey?
@scalextrix for our house 1950s detached the air leakag...
By Judith , 27 minutes ago
-
RE: Load Compensation and Weather Compensation
Morning, could this not be achieved with “regular” smar...
By Grantmethestrength , 28 minutes ago
-
Move to a different contractor, 16mm pipe every day not...
By Johnmo , 12 hours ago
-
RE: Nibe F2040 periodic warm water increase fails
Ok. The key point I think you have made is that the er...
By JamesPa , 12 hours ago
-
RE: Air Changes per Hour - ACH and the MCS requirement
@matwin If you plan to commission one it might b...
By JamesPa , 13 hours ago
-
RE: Jokes and fun posts about heat pumps and renewables
In a similar vein, this recent spell of sustained good ...
By Majordennisbloodnok , 18 hours ago
-
RE: Home energy storage & battery register
By the end of next month... 8 kW PV + Tesla Powerwall...
By Algienon , 19 hours ago
-
RE: Enabling WiFi: Samsung ASHP on Smart Things App
@grahamh-uk Yes, I have the same Samsung controller p...
By Old_Scientist , 20 hours ago
-
RE: Various different approaches to battery storage.
I thought I'd share my story/journey and experiences he...
By Old_Scientist , 21 hours ago
-
RE: Commencing on an ASHP Installation Process
It varies by room, but the conservatory is assumed at 2...
By Sheriff Fatman , 1 day ago
-
RE: Antifreeze top up for my heat pump - is this a rip off?
@editor @sallyl As Mars said, there are 2 different typ...
By Brendon Uys , 2 days ago
-
RE: Renewables & Heat Pumps in the News
Here on the Forum we're going to need to be increasingl...
By Transparent , 2 days ago
-
What I Wish I Knew Before Installing a Heat Pump
I’m putting together the next Homeowners Q&A episod...
By Mars , 2 days ago
-
RE: Planning Update: 1 Metre Boundary Rule for Heat Pumps Has Been Scrapped
In Scotland they still follow the MCS rules, so the noi...
By Johnmo , 2 days ago
-
RE: Getting the best out of a heat pump - is Homely a possible answer?
@johnmo and @benson Thanks! I was aware there was a p...
By MarcT , 2 days ago
-
RE: Is your heat pump insured?
My insurer just asks the question: "Is your home heated...
By AndrewJ , 3 days ago
-
RE: Say hello and introduce yourself
@cathoderay Ah yes, that’s the name! The Heat Pimp, It’...
By Toodles , 3 days ago
-
By the way, I also think our industry need to get on bo...
By ASHP-BOBBA , 5 days ago