You'll note the guy lives in California -- which means that during the WINTER it's only 50 or 60 (I'm guessing here).
I know they have the 'ocean effect' big time, and that's why everyone wants to live there. You don't need much in the way of heating/cooling.
Texas also has a milder winter, but it probably gets colder (at night, during the winter) here, and it certainly gets hotter during the summer.
Matthew