11 Natural gas and commercial, industrial and residential gas appliances, namely, furnaces, stoves, ovens, burners, dryers, barbeques, fireplace inserts comprising burners, artificial logs and embers, decorative and protective facing, boilers, carbon dioxide steam generators, clothes dryers, electric coffee makers for domestic and commercial use, and deep fat fryers, electric food and dish warmers, electric fireplace and space heaters, water heaters, electric hot plates and griddles, humidifiers, incinerators, ranges, smoke houses, electric toasters and gas lights; accessories for gas fired appliances and equipment, namely, automatic burner ignition and safety shut-off devices, combination controls for gas appliances, connectors, drip tubes, draft hoods, petroleum gas hose, couplings, pressure regulators, quick-disconnect devices, thermostats and valves; electric refrigerators, electric freezers, electric dryers, air cleaners, electronic air filters, dehumidifiers; microwave ovens, electronic ranges and cook tops, electric ovens, refrigerators, outdoor gas barbecues, pool and hot tub heaters, furnaces, space heaters, air cleaners, washers and dryers, heating units, water heater rental units, hot water heaters, furnaces and air conditioning units; and equipment and supplies for use in the production, generation, co-generation, distribution, transportation, transmission, storage, treatment, management, conservation, research and development and consumption of energy and water resources, namely, hot water heaters, furnaces, air conditioning units and pipes, pipelines, stations, compressors, lines, fittings, filters, valves, regulators, meters, gauges, tanks, caverns, motors, pumps and facilities, all relating to hot water heaters, furnaces and air conditioning units