HEATSTACK

WATER HEATERS; HEAT PUMP WATER HEATERS; ENERGY RECOVERY VENTILATORS; HEAT EXCHANGE EQUIPMENT, namely, NANOMATERIAL AND POLYMER MEMBRANES; AIR CONDITIONING APPARATUS AND INSTALLATIONS; HEATING INSTALLATIONS AND HEAT PUMPS; AIR CONDITIONING MODULAR REFRIGERATION UNITS; AIR CONDITIONING SYSTEMS CONSISTING PRIMARILY OF CHILLERS, EVAPORATORS, HEAT EXCHANGERS, MOTOR AND COMPRESSOR UNITS, CONTROL SYSTEMS FOR AIR CONDITIONING AND HEATING UNITS, AND AUTOMATIC TEMPERATURE REGULATORS FOR HEATING AND AIR CONDITIONING SYSTEMS