Electrostatic air filters; refrigeration units; fluid, air and water heaters, and chillers for domestic, commercial and industrial use; air delivery and handling units for cooling, heating and ventilating domestic, commercial and industrial buildings and for use in commercial process applications; air induction units, filters, humidifiers, ventilators, diffusers, blenders and convectors; terminal air units; variable air volume units; refrigerant condensers, evaporators, compressors and absorbers; condensing units included in Class 11; fan-coil units, fans and blowers; furnaces; air conditioners; and heat pumps; heat exchangers for use in heat transfer for industrial and commercial use; parts for all the aforesaid goods included in class 11; and all other goods included in class 11

Air heating, air cooling, air conditioning and ventilating apparatus included in this class, including heating coils and cooling coils,

Installation of solar energy systems

Installation of solar energy systems

Audio cassette driver training used as a suppliment to qualified instruction being services included in Class No. 41

Refrigeration units; absorption refrigeration units; compression refrigeration units; fluid, air, and water heaters and coolers; air filters, humidifiers, ventilators and distributors; refrigerant apparatus being evaporators and absorbers; burners; shell and tube, fin and tube, and plate and fin heat exchangers not being parts of machines and all other heat exchangers in this class; air delivery, handling and induction units in this class; refrigerant condensers and compressors in this class; fans, blowers, boilers, furnaces, heat pumps and incinerators in this class; and parts thereof