Water Heater A water heater may be bolted to the residential structure with straps (see Figure 127, page 92). For gas water heaters below 100,000 BTUH, use flexible pipe to attach the water heater to the gas piping. Furnace A furnace may be bolted to the residential structure with straps...
spraying them on the back side with Great Stuff foam in a can, pressing them against the metal, and bracing them until the foam cures. The areas around the polyiso board could be filled with Great Stuff. It seems like this method might also provide a way of keeping water vapor from get...