Non-motoring > The US and oil.... Computing Issues
Thread Author: No FM2R Replies: 57
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 Sun 25 Oct 20 10:27 
 The US and oil.... - Falkirk Bairn
Air Heat Pumps can work well when there temperature difference - heat extract from outside air heats the inside.

Unfortunately when the external air is approaching freezing point you cannot extract heat from the cold air.

Ground heat exchangers can still extract heat from the ground even when the top soil is frozen. The problem is every garden would need to be excavated & back filled - not an easy or cheap task. Then there are huge numbers of people living in flats etc with no gardens.
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 The US and oil....  No FM2R 24 Oct 20 17:47
 The US and oil....  sooty123 24 Oct 20 18:30
 The US and oil....  Zero 24 Oct 20 19:56
 The US and oil....  sooty123 24 Oct 20 20:18
 The US and oil....  Terry 25 Oct 20 01:56
 The US and oil....  henry k 25 Oct 20 01:36
 The US and oil....  Falkirk Bairn 25 Oct 20 06:55
 The US and oil....  Zero 25 Oct 20 07:35
 The US and oil....  sooty123 25 Oct 20 07:45
 The US and oil....  Bromptonaut 25 Oct 20 08:44
 The US and oil....  sooty123 25 Oct 20 09:08
 The US and oil....  Bromptonaut 25 Oct 20 09:40
 The US and oil....  sooty123 25 Oct 20 09:51
 The US and oil....  sherlock47 25 Oct 20 09:25
 The US and oil....  sooty123 25 Oct 20 09:27
 The US and oil....  sherlock47 25 Oct 20 09:35
 The US and oil....  Falkirk Bairn 25 Oct 20 10:27
 The US and oil....  Terry 25 Oct 20 11:27
 The US and oil....  sooty123 25 Oct 20 11:38
 The US and oil....  Zero 25 Oct 20 11:46
 The US and oil....  sooty123 25 Oct 20 12:03
 The US and oil....  Zero 25 Oct 20 13:16
 The US and oil....  No FM2R 25 Oct 20 13:27
 The US and oil....  Zero 25 Oct 20 13:33
 The US and oil....  Bromptonaut 25 Oct 20 15:10
  
 The US and oil....  Zero 25 Oct 20 19:17
 The US and oil....  Bromptonaut 25 Oct 20 19:36
  
 The US and oil....  Zero 25 Oct 20 13:44
 The US and oil....  sooty123 25 Oct 20 13:54
 The US and oil....  Zero 25 Oct 20 14:16
  
 The US and oil....  sooty123 25 Oct 20 14:45
  
 The US and oil....  smokie 25 Oct 20 14:29
  
 The US and oil....  sooty123 25 Oct 20 14:43
 The US and oil....  CGNorwich 25 Oct 20 16:08
 The US and oil....  No FM2R 25 Oct 20 16:37
 The US and oil....  CGNorwich 25 Oct 20 19:34
 The US and oil....  No FM2R 25 Oct 20 20:33
 The US and oil....  Bromptonaut 25 Oct 20 20:42
 The US and oil....  bathtub tom 25 Oct 20 22:53
 The US and oil....  CGNorwich 26 Oct 20 10:59
 The US and oil....  Zero 26 Oct 20 11:07
 The US and oil....  CGNorwich 26 Oct 20 11:10
 The US and oil....  henry k 26 Oct 20 14:18
 The US and oil....  bathtub tom 26 Oct 20 14:50
 The US and oil....  henry k 27 Oct 20 23:50
 The US and oil....  CGNorwich 26 Oct 20 19:03
 The US and oil....  No FM2R 26 Oct 20 19:08
 The US and oil....  Kevin 26 Oct 20 19:57
 The US and oil....  henry k 26 Oct 20 20:50
  
 The US and oil....  No FM2R 25 Oct 20 11:50
 The US and oil....  henry k 25 Oct 20 11:59
 The US and oil....  Dog 25 Oct 20 13:43
 The US and oil....  Terry 25 Oct 20 18:11
 The US and oil....  zippy 25 Oct 20 18:31
 The US and oil....  smokie 25 Oct 20 18:54
 The US and oil....  Falkirk Bairn 25 Oct 20 20:18
 The US and oil....  Terry 26 Oct 20 00:23
 The US and oil....  No FM2R 26 Oct 20 00:33
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