When the mercury really starts to climb like it has this summer, it’s nice to be able to retreat into your air conditioned ...

Use the same maintenance steps we show here. If your furnace looks different from the one shown or you have a heat pump, use ...

After removing all the hardware, raise the lower sash and lift the air conditioner out of the window and set it onto a thick blanket spread on the floor. #2: Clean off caked-on debris and dirt.