![](http://www.alamy.com/thumbs/6/0E25F1F1-8C33-453D-B10D-3BD33C0A6314/DJ4HW4.jpg)
Man adjusting domestic hot water temperature to economy setting on a gas boiler.
Size: 5205px × 3744px
Photo credit: © Stuart Aylmer / Alamy / Afripics
License: Licensed
Model Released: Yes
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