Is a Gradient combi unit actually cheaper to run?

Gradient states that homeowners in Alberta typically save 500 to 900 dollars a year on utility bills compared with traditional or electric heating systems, and rates the syncFURNACE at 95 percent efficiency for both space and water heating. Their reasoning is that one appliance doing two jobs avoids the standing loss of keeping a tank of water hot around the clock. Those are the manufacturer’s figures. Your actual saving depends on your house, your current equipment and how you use hot water.