(Some so-called ductless air conditioners are actually heat pumps.) They tend to cost a little more than AC-only units but less than the combined cost of a new heating and cooling system.

Looking to beat the heat without breaking the bank? Here are the top portable air conditioners, tested by CNET's experts. Laboratory Technical Project Manager Gianmarco Chumbe has been part of the ...

Among the best air conditioners, portable units come with slightly ... Still, I think the cost is worth it for such a versatile heating and cooling option. If you already have a portable power ...

With one distribution system and one blower motor, we could now condition the air year-round, providing heat and humidity in the cold winter months and cooling and dehumidification in the warm summer ...