Last summer, Barbara Ennis replaced her 60-year-old boiler with a "super efficient boiler and hot water on demand called Smart H20 heater." She also purchased a new thermostat with auto control, and reports she is saving "lots of money. The difference in how the boiler heats up my radiators is unbelievable and wonderful. The hot water never runs out, ever! I saved about $100 a month last winter already! My clothes dryer is also natural gas."
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