Bosch GWH 715 ES Installation Instructions Manual page 49
Temperature modulated with electronic ignition suitable for heating potable water only - not approved for space heating purposes (intended for variable flow applications)
Indoor model temperature modulated with electronic ignition suitable for heating potable water only - not approved for space heating purposes (intended for variable flow applications) (60 pages)
Flow modulated with standing pilot suitable for heating potable water only - not approved for space heating purposes (intended for variable flow applications with steady cold water inlet temperatures) (28 pages)