Roll portable air conditioner among rooms
Dear Jim: We are empty-nesters now. Is it wise to move a portable air conditioner among rooms instead of running our central air as much to cool the entire house? - Kari K. Dear Kari: Using a portable or air conditioner is a good idea especially when two of you are going to be in the same room for an extended time. This also is effective with central air-conditioning. Even though the cooling efficiency of a newer central heat pump is generally higher than that of a portable model, using portable one can save money overall. Run the portable unit to cool just a few frequently used rooms ...