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Water heaters (Qtpmhkw)

Vehicles and equipment (Q)
    Equipment (Qt)
         Use For: Apparatus; Devices
         Related Term (Associative): Control devices (Dcj); Communication devices (Dsg); Testing equipment (Gu); Structural parts (Pbp); Building materials (Rbm)
        Equipment by end use (Qtp)
             Related Term (Associative): Types of machines (Qtbmb)
            Heating, cooling and ventilation equipment (Qtpm)
                 Related Term (Associative): Environmental control (Fcd); Environmental and sanitary systems in buildings (Pbpv)
                Heating equipment (Qtpmh)
                    Heaters (Qtpmhk)
                        Water heaters (Qtpmhkw)