Forums

Forums
Renewable Heating
Air Source Heat Pum...
Aira Heat Pump: Sty...
 
Notifications
Clear all

Aira Heat Pump: Stylish Scandinavian Heating

 
Page 7 / 7
Air Source Heat Pumps (ASHPs)
Last Post by Johnmo 2 days ago
80 Posts
13 Users
33 Reactions
4,058 Views
RSS
 IvanOpinion
(@ivanopinion)
Estimable Member Member
487 kWhs
Joined: 3 months ago
Posts: 44
30/06/2024 10:05 am  

Posted by: @johnmo
↑

Some info on buffers
Thanks, v helpful. They also have this other page covering it slightly differently: https://www.kensaheatpumps.com/installer/tech-focus-part-2/
 

This post was modified 2 days ago by Mars

   
ReplyQuote
 IvanOpinion
(@ivanopinion)
Estimable Member Member
487 kWhs
Joined: 3 months ago
Posts: 44
30/06/2024 10:10 am  

Posted by: @johnmo
↑
If you don't mind me asking, are those prices after the grant? .... Assume you need radiators also?
Yes, £6500 with Aira after grant and £10,500 with Heat Geek. 6 or 7 new radiators with both. Self install is not something I'd be comfortable with doing.
 

This post was modified 2 days ago by Mars

   
ReplyQuote
 Johnmo
(@johnmo)
Eminent Member Member
168 kWhs
Joined: 1 year ago
Posts: 19
30/06/2024 10:59 am  

Have you tried Grant? They use local plumbers to do the work and the design and commissioning is done by people that know what they are doing.there nothing magically about R290, I would be quite comfortable going R32. Design of system is the important bit.

This post was modified 2 days ago by Mars

   
ReplyQuote



 IvanOpinion
(@ivanopinion)
Estimable Member Member
487 kWhs
Joined: 3 months ago
Posts: 44
30/06/2024 1:27 pm  

Posted by: @johnmo
↑

Have you tried Grant? They use local plumbers to do the work and the design and commissioning is done by people that know what they are doing.there nothing magically about R290, I would be quite comfortable going R32. Design of system is the important bit.
I take it that Grant don't do R290? My concern about R32 is that it has 200 times the global warming potential.
 

This post was modified 2 days ago by Mars

   
ReplyQuote
Toodles
 Toodles
(@toodles)
Famed Member Contributor
6070 kWhs
Joined: 2 years ago
Posts: 943
30/06/2024 1:50 pm  

@ivanopinion I have wondered about this business of global warming potential of the various gases used. I think there is only a potential of releasing any of the gas into the atmosphere if there were a leak and that during normal use, no gas should be released. The actual quantity of gas used is, I am given to understand, relatively small. I’m also told that the gas is extracted safely at the end of life for the pump. Of course, I may be living in cloud cuckoo land and I have it completely wrong? Regards, Toodles.

This post was modified 2 days ago by Mars

Toodles, 76 years young and hoping to see 100 and make some ROI on my renewable energy investment!


   
Derek M reacted
ReplyQuote
 IvanOpinion
(@ivanopinion)
Estimable Member Member
487 kWhs
Joined: 3 months ago
Posts: 44
30/06/2024 1:59 pm  

@toodles I was assuming the same thing. So, it might not be an issue. I'm not sure how often the refrigerant leaks.

This post was modified 2 days ago by Mars

   
ReplyQuote
Toodles
 Toodles
(@toodles)
Famed Member Contributor
6070 kWhs
Joined: 2 years ago
Posts: 943
30/06/2024 2:18 pm  

@ivanopinion I heard of a batch of Daikin heat pumps that left the factory short measured on R32, but, that was a case of underfilling rather than leakage I believe. Mind you, I do think twice before I light up the butane powered barbecue these days - so I suppose this is due to heightened awareness. 🫘😉. Regards Toodles.

This post was modified 2 days ago by Mars

Toodles, 76 years young and hoping to see 100 and make some ROI on my renewable energy investment!


   
ReplyQuote
 Johnmo
(@johnmo)
Eminent Member Member
168 kWhs
Joined: 1 year ago
Posts: 19
30/06/2024 2:33 pm  

Posted by: @ivanopinion
↑

I take it that Grant don't do R290? My concern about R32 is that it has 200 times the global warming potential.

Grant not looked at there current line up for a while so don't know.
You need to have a leak for the global warming effect to take place. How many fridges leak their gas away in the 20 years, they sit in a kitchen? A monobloc heat pump should be no different it's just a little bigger.
R290 is basically propane, so you have restrictions on location.
SCoP CoP are very similar R290 or R32, you can heat to 70 degrees with R290 and around 60 with R32. Do you need the additional 10 degs, most likely not. Good chance your paying an additional £1 to £1.5k for R290 over R32, no idea why as the components used to make the heat pump are almost identical.

This post was modified 2 days ago by Mars

   
ReplyQuote
Page 7 / 7
Forum Jump:
  Previous Topic
Next Topic  
Related Topics
Topic Tags:  Aira (1) , heat pumps (6) ,



Share:

Join Us!

Latest Posts

Heat Pump T-Shirts

Delta T Sounds Greek to Me
x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
Shield Security →