[Class : 11] Apparatus For Heating, Steam Generating, Refrigerating, Chilling, Drying, Ventilating, Water Supply And Sanitary Purposes: Boilers (Other Than Parts Of Machines); Water Control Valves; Pressure Relief Valves For Gas And Water Pipes; Steam Valves; Thermostatic Valves As Parts Of Heating Installations; Air Valves For Steam Heating Installations; Valves As Part Of Radiators; Automatic Temperature Regulators; Regulating Apparatus For Gas Pipe Installations; Safety Accessories For Gas Pipes, Namely, Flashback Arrestors And Reverse Flow Check Valves; Heating Systems For Residential And Commercial Buildings Comprised Of Biomass Burners, Boilers, Valves, Pipes, Manifolds, Solar Panels, Control Panels, Switches And Electrical Wire, All Sold As A Unit.