Rheem Integrity is a compact, continuous flow gas water heater with optional temperature controllers and excellent for use where space is at a premium. It doesn't store water - instead it heats water as it passes through the unit, meaning it will virtually never run out of hot water. Rheem Integrity incorporates Q function, which smoothes out cold pockets and enhances temperature control during frequent use. With Flame Safe™, Rheem Integrity offers superior built-in safety. Consumer protection is further enhanced with built in diagnostics and operation display status even without controllers. Rheem offers an optional recess box to enable the Integrity to be fitted into a wall cavity, or use a pipe skirt to neatly cover the connections.