As a "rule of thumb", room sizes between 300 to 450 sq. ft. can be cooled by portable units ranging from 8000 to 10,000 Btu while room sizes between 350 to 550 square. ft. can be best content with units globe 12,000 to 16,000 Btu range. As mentioned earlier, as well as to room size, additional heating factors in the area need end up being taken into mind. These factors include are usually not in order to direct sunlight entering room, excessive window exposure, skylighting, poor insulation,…
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