Water heater, particularly a water-flow heater and method for the manufacture of the back wall of a water heater, particularly water-flow heater

摘要

The hot water appliance has a rear wall with at least one spacer (12, 14) to support the rear wall against an assembly wall (20) at a preset spacing. It also has at least one device (28, 30) for continuously checking the preset spacing, which may vary at different points if the wall to which the appliance is being fitted is uneven.