Wall hanging ACs are highly sought after, with leading manufacturers like LG, Samsung, Daikin, Mitsubishi, and Fujitsu dominating the market. Prominent distribution channels like Home Depot and Lowe’s offer ample product availability and customer support. Professional installation services ensure optimal performance and safety, while maintenance and repair providers guarantee longevity and efficiency. Industry organizations such as ASHRAE and DOE set standards and provide guidance, while online resources like Energy Star and ENERGY.GOV offer valuable information and ratings to assist consumers in making informed decisions.