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You can either go for a 1 ton AC or a 1.5 ton AC depending upon the amount of light that enters the room, area and direction of windows, the floor on which your room is situated, number of people occupying the room and the number of lights.
The size of your house and the quality of the insulation are important factors for selecting the proper sized central air conditioning system for your home. A rough estimate puts the required BTU at 1 ton of capacity for every 400 square feet of living space. For example, a 2,000-square-foot house would require a 5-ton air conditioning system. An HVAC contractor can properly evaluate your homeâs needs. Another factor in the price of a central air conditioning system is its energy efficiency rating.