Specifications: Cooling Rate (BTU/hr): 8000 /12000 BTU Recommended Coverage Area: 350 / 550 sq/ft Voltage: 115V/ 230V Fan Speeds: Low, Med, High, Auto Timer Setting: Up to 24 hours Temp Range: 61°F - 88°F Recommended Window Width: 26" - 36" Recommended Window Height: 16'' Overall Dimensions: 19.76" x24.02" x15.16" (W x D x H) Package Includes: 1 x Air Conditioner 1 x Remote Control 1 x Installation Kit 1 x Manual Warm Notice: 1. Window requirement: windows width: 26" - 36"; window height: 16" 2. Besides of considering the SQ.FT of the room, we also need to take these factors into consideration: environmental temperature, ceiling height, insulation, or related to the environment mentioned