Reply To: Save Money on your Air Conditioner

If the AC has more BTU’s than necessary for the room (i.e. a small room with a powerful AC), will that use more energy than necessary?

Or when you set the temperature on a powerful AC, it will use the same amount of energy (i.e. electric power) that an equivalent smaller AC would use?

Yes, it will use electricity less efficiently.

It will also:

-cool off the room too fast, which may make the room too cold.

-cool the air so quickly that you won’t get the dehumidification that an appropriate sized unit would give.

-cool the room unevenly.