[ Climate control systems consisting of digital thermostats, ] air conditioning control devices, heating control devices, ventilation control devices and electric control devices, all of the foregoing for heating and energy management and sold as components of heating boilers, water heaters, air conditioning installations, heating installations, furnaces, hot water tanks, hot water boilers, solar heat collection panels; Heating boilers for residential and commercial use; water heaters for residential and commercial use; Heating systems for residential and commercial buildings comprised of boilers, valves, pipes, manifolds, solar panels, control panel, switches and electrical wire, all sold as a unit; Furnaces, water heaters, hot water tanks, hot water boilers, heating boilers, all of the foregoing for use in residential and commercial buildings [ ; Solar heat collection panels ]