A. R. Engineering Works manufactures Drop and Film Condensation Apparatus. A. R. Engineering Works also manufactures condensing unit, laboratory condensing unit, experimental condensing unit, motorized gyroscope, absorption refrigeration chiller, air conditioning [1 ton], air water heat pump, drop and film condensation apparatus etc. The Drop and Film Condensation Apparatus is to determine and compare surface heat transfer co-efficient for Drop wise condensation and Film wise condensation. The Condensation in Drop and Film Condensation Apparatus occurs in one of two ways namely, film condensation and drop wise condensation.