3 October 2011

• 11:05 11:05, 3 October 2011 diff hist +160‎ m Air source heat pump ‎ →‎Advantages

7 September 2011

• 16:58 16:58, 7 September 2011 diff hist +298‎ m Air source heat pump ‎ →‎Conclusions

15 July 2011

• 16:53 16:53, 15 July 2011 diff hist +495‎ m Heat pump ‎ →‎Air-source heat pumps

18 May 2011

• 09:09 09:09, 18 May 2011 diff hist +31‎ m Heat pump ‎ →‎External links
• 09:08 09:08, 18 May 2011 diff hist +271‎ Heat pump ‎ →‎External links

26 January 2011

• 13:04 13:04, 26 January 2011 diff hist +82‎ m Air source heat pump ‎ →‎Disadvantages
• 13:01 13:01, 26 January 2011 diff hist −104‎ m Air source heat pump ‎ →‎References
• 13:01 13:01, 26 January 2011 diff hist −3‎ m Air source heat pump ‎ →‎References
• 12:59 12:59, 26 January 2011 diff hist +289‎ m Air source heat pump ‎No edit summary
• 12:48 12:48, 26 January 2011 diff hist +441‎ m Heating oil ‎ →‎England, Scotland and Wales

22 December 2010

• 14:04 14:04, 22 December 2010 diff hist +575‎ Air source heat pump ‎ →‎Efficiency: Effect of design intent
• 13:54 13:54, 22 December 2010 diff hist +199‎ m Air source heat pump ‎ →‎External links: new links to additional data source

18 November 2010

• 17:49 17:49, 18 November 2010 diff hist +96‎ m Heat pump ‎No edit summary