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!
Things do seem to be quite a bit quicker today.
Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.
2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.
@Morgan by the logs and performance data, PHP processing has been improved up by 338%... still more things to learn about PHP and DB optimisation though. Today's lesson for me will be in MySQL optimisation which should remove that 1-3 second lag on page load ups.
🔥 Britain’s Heat Pump Shitshow
How Installing a Heating System Became a National Nervous Breakdown
Free UK shipping.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
New to heat pumps?
Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Posted by: @toodles@editor That is quite an improvement in COP!😉 Toodles.
How dare you suggest it wasn't much cop beforehand 🤡
105 m2 bungalow in South East England
Mitsubishi Ecodan 8.5 kW air source heat pump
18 x 360W solar panels
1 x 6 kW GroWatt battery and SPH5000 inverter
1 x Myenergi Zappi
1 x VW ID3
Raised beds for home-grown veg and chickens for eggs
"Semper in excretia; sumus solum profundum variat"
Toodles, heats his home with cold draughts and cooks food with magnets.
Posted by: @editor@Morgan by the logs and performance data, PHP processing has been improved up by 338%... still more things to learn about PHP and DB optimisation though. Today's lesson for me will be in MySQL optimisation which should remove that 1-3 second lag on page load ups.
Things certainly feel more snappy today. Great job @editor
Samsung 12kW gen6 ASHP with 50L volumiser and large radiators. 7.2kWp solar (south facing), Tesla PW3 (13.5kW). Net Zero
@old_scientist thank you, and thank you to @Morgan for making me do something I've been putting off.
I have a very fast fibre Internet connection and I have a wait time of less than 1 second between click and load of new pages.
🔥 Britain’s Heat Pump Shitshow
How Installing a Heating System Became a National Nervous Breakdown
Free UK shipping.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
New to heat pumps?
Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Just to keep everyone in the loop, as the site continues to grow we’ve upgraded our security to keep things safe. Some of the new settings are quite “aggressive”, so if you notice anything behaving differently or something stops working, please drop a comment here and let us know.
🔥 Britain’s Heat Pump Shitshow
How Installing a Heating System Became a National Nervous Breakdown
Free UK shipping.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
New to heat pumps?
Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
We've had a slight glitch with our security software for the website and some of you may have been blocked and locked out briefly. We have raised this with the developers, and we'll try to get this resolved ASAP. Apologies if you've been inadvertently locked out today.
🔥 Britain’s Heat Pump Shitshow
How Installing a Heating System Became a National Nervous Breakdown
Free UK shipping.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
New to heat pumps?
Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Heating season is definitely upon us, and things are really starting to warm up on Renewable Heating Hub.
We’re closing in on 6,000 registered members, and this morning alone there were almost 500 people online. A lot of lurkers! Lurkers, please register and post.
It’s brilliant to see so much engagement, but let’s keep it going.
Please get your family, friends, colleagues, neighbours, your postie or that one bloke who’s always moaning about his heating bills to join us and be part of the conversation.
The more voices we have, the stronger and more helpful this community becomes.
🔥 Britain’s Heat Pump Shitshow
How Installing a Heating System Became a National Nervous Breakdown
Free UK shipping.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
New to heat pumps?
Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Just an idea @editor, that QR code you generated for me to use taking scanners to the RHH, how about publishing it in the forum so others may copy and paste it in their emails etc.?
By the way, I have just renewed my ‘Visit a Heat Pump’ poster at my gate and this time, it also incorporates that QR code along with a short suggestion to readers to join RHH with their questions etc. Regards, Toodles.
Toodles, heats his home with cold draughts and cooks food with magnets.
@toodles your sign sounds amazing… you must post a photo.
Happy to share a QR code but no sure many homeowners share you dedication 😂
🔥 Britain’s Heat Pump Shitshow
How Installing a Heating System Became a National Nervous Breakdown
Free UK shipping.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
New to heat pumps?
Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
- 27 Forums
- 2,754 Topics
- 64.8 K Posts
- 1,823 Online
- 7,159 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
Thanks for sharing that. Your objective seems very sen...
By JamesPa , 4 hours ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Very nice. Ours was the opposite, about 10%...
By Papahuhu , 6 hours ago
-
RE: Adding additional Solar Panels to a DC coupled battery system
A couple more points about placing solar panels at low ...
By Transparent , 6 hours ago
-
RE: How Accurate Is My DIY Heat Loss Calculation?
@kilgorexv definitely a larger inverter will help and m...
By AndrewJ , 1 day ago
-
RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 1 day ago
-
RE: Surface mount or bury primaries for heat pump installation?
The installation is almost done! I've written up two ...
By tomasmcguinness , 2 days ago
-
RE: Glass lined Cylinder for private water supply
This has turned into a fascinating little rabbit hole. ...
By Mars , 2 days ago
-
RE: Switch suitable to change between two inverter CT's
Last winter my battery ,32KWh, could run the house com...
By Jancold , 2 days ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Agree with Major. And even if I was very happy with ...
By Batpred , 2 days ago
-
RE: Is the "divide by 2900" rule still valid?
There is another estimator that you could use, a formul...
By Rob of York , 2 days ago
-
RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 5 days ago
-
RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 5 days ago
-
RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 6 days ago
-
RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 6 days ago







