Pressure regulators for water installations; Sink drainer system comprised of a drain tray, sink mount, kick stand and rod; Automatically operated electric lighting apparatus for use with animal feeders; Air humidifying apparatus; Forage drying apparatus; Portable electric heaters; Heating apparatus for defrosting vehicle windows; Plate warmers; Heating systems for residential and commercial buildings comprised of boilers, valves, pipes, manifolds, solar panels, control panel, switches and el...