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Octopus Cosy 6 installation (fan boy video)

 
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Air Source Heat Pumps (ASHPs)
Last Post by wreckguru 1 year ago
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Majordennisbloodnok
 Majordennisbloodnok
(@majordennisbloodnok)
Famed Member Moderator
Joined: 4 years ago
Posts: 1765
29/10/2024 10:59 am  

For the majority of the general public in the UK, heat pumps represent a big change. Despite the fact the technology's been around for quite a while, they feel like something "new-fangled", and generally speaking people don't like change. The Cosy 6 looks different even to the eyes of people who're already used to living with a heat pump, so there's a huge amount of subjective evaluation going on and that's entirely natural.

So in taking a look at this video and the product it's discussing, we've an awful lot of unknowns centring around two basic questions:

  • How well does it work? All the technicalities and objective data to understand how effectively it performs its primary task
  • Could I live with it? All the subjective questions around aesthetics, perceived acoustics, acceptability to home occupants and close neighbours, judgements about sustainability of manufacture and operation and so forth.

Human nature being what it is, plenty of people's interpretations of the objective data will be biased by their subjective opinions - not everyone, of course, but many and often without realising it. That's why, I think, @wreckguru's review will be particularly well received here since the insights will help cut through preconceptions and uncover more important questions to ask at the same time.

That's not an attempt to put you under pressure, btw @wreckguru; we're still only looking forward to a plain honest summary of your installation as you see it. However, I suspect it'll be devoured rather more readily and by far more people than anything I could write about my (yet another) Ecodan.


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"


   
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 Judith
(@judith)
Prominent Member Member
Joined: 2 years ago
Posts: 521
29/10/2024 9:52 pm  

Plastic is a wonderful material used in the right products. I believe that I’ve read that plastic buckets have saved countless lives in Africa and other developing countries since they allow water to be carried cleanly. Plastic is easily sterilised using bleach for example whereas metal or sodden buckets can’t be. It’s just single use plastic for trivial items (plastic straws, carrier bags etc) which are not recycled which gives it a poor image environmentally. 

I’m not sure what percentage of steel is made by green processes rather than the traditional coking coal and I can’t find the right reference. This article says 70% by the established process which emits large levels of carbon https://foresightmedia.com/historie/swp229602-ae7KOqYq-e7d68  

But if a product looks ugly it often doesn’t catch on unless it becomes very fashionable. I couldn’t believe Crocs (an ugly plastic sandal) were worn by the beautiful people with designer dresses until I saw it.


2kW + Growatt & 4kW +Sunnyboy PV on south-facing roof Solar thermal. 9.5kWh Givenergy battery with AC3. MVHR. Vaillant 7kW ASHP (very pleased with SCOP >4) open system operating on WC


   
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 Judith
(@judith)
Prominent Member Member
Joined: 2 years ago
Posts: 521
29/10/2024 11:05 pm  

This is a better article to understand the carbon cost of steel https://www.sustainabilitybynumbers.com/p/green-steel-goodall?utm_source=publication-search  


2kW + Growatt & 4kW +Sunnyboy PV on south-facing roof Solar thermal. 9.5kWh Givenergy battery with AC3. MVHR. Vaillant 7kW ASHP (very pleased with SCOP >4) open system operating on WC


   
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 wreckguru
(@wreckguru)
Eminent Member Contributor
Joined: 2 years ago
Posts: 29
30/10/2024 10:37 am  

@lucia how do I start the article?  I see there is a list of articles but no "create" or + button for me (I might be looking in the wrong place!).



   
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Majordennisbloodnok
 Majordennisbloodnok
(@majordennisbloodnok)
Famed Member Moderator
Joined: 4 years ago
Posts: 1765
30/10/2024 10:48 am  

The simplest, @wreckguru, is to write the article as a separate document and pass it on to @editor. That way he and you can discuss the most appropriate home for it, which might be wider than just the forum itself.


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"


   
ReplyQuote
 wreckguru
(@wreckguru)
Eminent Member Contributor
Joined: 2 years ago
Posts: 29
30/10/2024 11:44 am  

gotcha, ta.

I will do that - it won't be ready until my snags are done - which allegedly is tomorrow!

 

Posted by: @majordennisbloodnok
↑

The simplest, @wreckguru, is to write the article as a separate document and pass it on to @editor. That way he and you can discuss the most appropriate home for it, which might be wider than just the forum itself.

 



   
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Majordennisbloodnok
 Majordennisbloodnok
(@majordennisbloodnok)
Famed Member Moderator
Joined: 4 years ago
Posts: 1765
30/10/2024 12:01 pm  

Not a problem, @wreckguru, and no need to rush other than plenty of people here eager to hear your experiences.

If you want some ideas on how others have written their articles, take a look at ASHPs – Renewable Heating Hub. I have no doubt yours will be a very welcome addition to the library.


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"


   
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 Marvinator80
(@marvinator80)
Reputable Member Member
Joined: 3 years ago
Posts: 201
31/10/2024 11:09 am  

That is beyond belief. It’s looks like he has put a council bin outside his house! Neighbours must be fuming. 



   
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Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 4 years ago
Posts: 2727
31/10/2024 11:17 am  

@marvinator80 It could also be confused with a utility company’s connections cabinet! But as mentioned before, an open invitation for… ahem… waste material. (Ours is safely tucked ‘round the back’ M’lud) Toodles.


Toodles, heats his home with cold draughts and cooks food with magnets.


   
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 wreckguru
(@wreckguru)
Eminent Member Contributor
Joined: 2 years ago
Posts: 29
31/10/2024 11:20 am  

@marvinator80 the fanboi's sighting is a bit odd, but I doubt his neighbours care.  It will likely be full of fag ends and plastic by spring.  Mine in in the back garden.  My pipe run is also shorter - from pump to diverter it's about 16" rather than 16m, lol.



   
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Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 4 years ago
Posts: 2727
31/10/2024 11:34 am  

@wreckguru In one of his presentations where he is considering the siting of his pump, he dismisses his back garden completely as this would clutter the space and he needs the whole garden space for his offspring to play!😵‍💫 Regards, Toodles.


Toodles, heats his home with cold draughts and cooks food with magnets.


   
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Majordennisbloodnok
 Majordennisbloodnok
(@majordennisbloodnok)
Famed Member Moderator
Joined: 4 years ago
Posts: 1765
31/10/2024 12:15 pm  

Posted by: @toodles
↑

…

But as mentioned before, an open invitation for… ahem… waste material.
…

Given that’s an exit vent, not an intake, that could end up with some hugely amusing results.

 


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"


   
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