Share 'Not That Kind of Blanket!'

The owners of a home in the Phoenix, Arizona, area heard that you could reduce a gas water heater’s energy consumption by wrapping it in a blanket.  So they took a blanket off the shelf and wrapped it around the tank, including the combustion air ports at the bottom and the vent at the top (see photo).  I explained to the owners about the danger of fire because the combustible blanket was cov…