the more powerful the AC. BTU is the standard measuring unit and as per standards, for every square foot of a room, one will need 20 BTU/hr. Imagine BTUs as tiny heat warriors. You need enough ...

choose a unit that delivers 20 BTUs per square foot of living space. So, a 200-square-foot room needs at least a 4,000-BTU air conditioner. Those sensitive to noise should consider units with a ...