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!
Repiping and Reconfiguring our Heat Pump System Including Removing the Buffer Tank - Heat Pump Retrofix
@jamespa talking of being old, the house where I grew up had a multi zone heating system. Downstairs had radiators, upstairs didn't 😂
I remember scratching my name onto the frost on the inside of my bedroom window. Curiously I don't ever remember feeling cold though 😁
Now we (rightly) get upset if the room doesn't get upto temperature, how times have changed.
Posted by: @scalextrix@jamespa talking of being old, the house where I grew up had a multi zone heating system. Downstairs had radiators, upstairs didn't 😂
I remember scratching my name onto the frost on the inside of my bedroom window. Curiously I don't ever remember feeling cold though 😁
Now we (rightly) get upset if the room doesn't get upto temperature, how times have changed.
And we (or at least some) expect to be able to do 5-4 showers in quick succession every day, and many other (largely luxury) thinks we now take for granted.
And yet people still aren't satisfied and moan about their lot. Really?
4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.
@scalextrix ‘You had a shoe box?’😉
Toodles, heats his home with cold draughts and cooks food with magnets.
Posted by: @scalextrixthings were shit in the "good old days", but we were happy anyway
Yup
Sadly consumerism, the foundation of our economy, depends on making us unhappy and thus buying ever more stuff to keep up with the neighbours or temporarily deal with our unhappiness.
This is of course totally unsustainable, but the lemmings have been 'educated' by the largely shallow self-interested media not to see that and as a result many vote for whichever self-interested individual tells them the lies they want to hear thus sealing their own, and more particularly their childrens' fate.
It's somewhat depressing.
4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.
@jamespa The dormitories at my boarding school (in Exeter) had ice formed on the inside of the windows (single glazed of course) and that ice would sometimes be resident for several days at a time. Meanwhile, at home in Somerset, we had to keep a coal fire burning throughout the summer if we required any hot water as a back of fireplace heat exchanger mechanism was all we had. My Dad eventually installed an immersion heater in the DHW tank in about 1958/9 to alleviate the situation in our ‘shoebox’.😉 Toodles.
Toodles, heats his home with cold draughts and cooks food with magnets.
Day one is done.
The system’s been fully flushed and cleaned, and every lockshield has been swapped out for FRVs. They look fantastic and they’ve already exposed major flaws in our system (two in fact!).
This is shaping up to be an epic project and a huge learning experience. We’ve also filmed the first part of our video and we’re off to a flying start.
Short updates to follow this week before we unleash our content.
New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained
@editor your engineer's attitude is truly horrifying. I suspect he realises that he messed up, but can't bear to face up to it.
Anyway, once The Maestro has sorted it out, you will have dramatically improved performance and demonstrably reduced heating bills. Then, your position will be incontrovertible.
Of course, what you do with that information will be up to you.
Grant Aerona 290 15.5kW, Grant Smart Controller, 2 x 200l cylinders, hot water plate heat exchanger, Single zone open loop system with TRVs for bedrooms & one sunny living room, Weather compensation with set back by room thermostat based load compensation
Day 2 was a beast. All the excess zoning, on/off stats and buffer related piping, plumbing and wiring is gone. Day 3 is about putting everything back to together as an open zone and balancing all our emitters. I'll make sure @heacol gets regular coffee throughout the day to help him power through.
New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained
There's a couple of motorised valves I can see there.
Put them on ebay, and you'll be able to cover the cost of Brendon's coffee for the duration.
How much insulation wall thickness is left, I wonder, after compressing it with nylon cable-ties?
Posted by: @grahamfyour engineer's attitude is truly horrifying. I suspect he realises that he messed up, but can't bear to face up to it.
If it weren't for that original installer, none of us would be here on this forum.
Save energy... recycle electrons!
@editor this is exciting! It will be great to hear how things go.
Grant Aerona 290 15.5kW, Grant Smart Controller, 2 x 200l cylinders, hot water plate heat exchanger, Single zone open loop system with TRVs for bedrooms & one sunny living room, Weather compensation with set back by room thermostat based load compensation
- 26 Forums
- 2,725 Topics
- 63.8 K Posts
- 540 Online
- 7,126 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
Are you exporting the solar energy your panels produce?...
By Toodles , 18 minutes ago
-
RE: Who's your electricity provider and what's your tariff?
Many thanks. Good info
By peterackstraw , 41 minutes ago
-
@editor — it was a not very well implemented so far as ...
By cathodeRay , 1 hour ago
-
RE: Microgeneration Certification Scheme (MCS)
@jamespa A cynical view but, I fear that it is a fair ...
By Toodles , 1 hour ago
-
RE: Jokes and fun posts about heat pumps and renewables
... except that the legal notice (part of which was rep...
By JamesPa , 2 hours ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Have either quote provided room by room heat loss calcu...
By Old_Scientist , 22 hours ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@old_scientist if you are going DIY then you may wan...
By Papahuhu , 2 days ago
-
RE: Indevolt Batteries UK Support & Info Thread
After a short while that was followed by the 'power war...
By JamesPa , 2 days ago
-
RE: Samsung heat pump - data cable issue
That's well done. Cable is the correct type (LIYCY = 2x...
By bobflux , 3 days ago
-
RE: Electricity price predictions
I agree, we will find out at the next budget whether th...
By Old_Scientist , 3 days ago
-
RE: Missing flow temperature in Heat Geek proposal
@editor I went through HG website, so should be ok for ...
By sttpd1917 , 3 days ago
-
RE: Air to air bus grant installer anywhere
The through wall two hole ones have their place (listed...
By EtchedPixels , 3 days ago
-
I hope it goes ok, Hon can be hard to set up IF the sof...
By Graham Hendra , 3 days ago
-
@clockworks Hi, So there is a big difference between st...
By ASHP-BOBBA , 3 days ago
-
@editor wellvery comprehensive answer. I will get all i...
By Keithb , 3 days ago








