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Hot and bothered about heat pumps

by LiveModern Webmaster last modified Apr 28, 2016 01:00 AM
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Average Rating: 1 2 3 4 5 ( 0 votes)
by Lloyd Alter last modified Apr 26, 2016

How do these things actually work? We try to explain.




 

 

How do these things actually work? We try to explain.

 

 

 
 
 

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