We prefer the strong, fashionable type in our air conditioners and heaters, of course. This one has14,000 BTUs, and is strong enough to cool or heat up to 500 square feet. Control your indoor humidity level with our innovative dehumidification function. It mixes cool dry air, with the warm air to keep you comfortable and prevent overcooling. It can even save you money. Enjoy every bit of cool air with our oscillating air vent technology. It circulates your cool air more efficiently, so no hot spot will be left untouched. Heat Pump technology enables this unit to provide 12,000 BTU of heating capacity - up to 3 times more heat than some plug-in electric heaters!