Air conditioners (AC) have become an integral part of the life. People are getting more and more used to living in the airconditioned rooms. Every year millions of new AC units are sold in the world. Air conditioner usage has following drawbacks. Use of air conditioners increases day and night external temperatures Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and halons used in airconditioners destroy the earth's protective ozone layer, which shields the earth from harmful ultraviolet (UV-B) rays generated from the sun. The project is aimed to study • Method to reduce the external temperature of the AC unit • Impact of temperature reduction on the current consumption Proposed study aims at usage of AC drain water and Aloe Vera plants on the external unit of air conditioners. AC Drain Water - Air conditioners drain water when they run. Many studies have been taken up to see if the same can be made potable. But we intend to see if this water can be used to reduce the temperature near the external unit which can improve the efficiency of the AC and also have a positive impact on the environment.