Commercial-grade quality and construction are standard on all Kuhl air conditioner units. The new line of Kuhl Room Air Conditioner units now offers Precision Inverter Technology. This technology allows the compressor to constantly adjust to your room's needs saving you up to 35% on energy costs. Kuhl units also include integrated WiFi that works with your smartphone as well as compatibility with Amazon Alexa and Google Home. Constructed of the highest quality materials and components, Kuhl delivers dependable operation in some of the harshest environments. Its fully enclosed fan motor seals out dirt. Kuhl air conditioner motors operate at a lower temperature than standard grade motors, preventing overheating. Aluminum end plates prevent rusting and easy grip handles make installation and maintenance quick and easy. But commercial grade construction does not mean that this unit cannot be installed in your home. The Friedrich KEVS16B33A will plug into a 230-volt outlet and keep you and your loved ones comfortable! Friedrich Air Conditioners operate with outdoor temperatures between 60°F and 115°F.