Nathan's bedroom has a width of 13 feet,a height of 9 feet,and a length of 14 feet.The level of insulation,i,is 10 and the exposure,e,is 18 because the outside wall faces south.For this room,Nathan should purchase an air conditioner with a BTU rating of about 5,000 BTUs.

Question

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The BTU rating for a room is calculated using the formula BTU = (Width x Height x Length) x (Insulation + Exposure). For Nathan's room, this calculation is (13 x 9 x 14) x (10 + 18) = 4,928 BTUs. Therefore, Nathan should purchase an air conditioner with a BTU rating of about 5,000 BTUs.

Nathan's Bedroom Has a Width of 13 Feet,a Height of 9