AC manufacturers
For room air conditioners, prefer manufacturers that have adhered to the EnergyStar rating program. That means that they are manufacturing room AC units with higher EER.
See: Energy Star List for AC Manufacturers
There isn’t such a list for other types of air conditioners, but you can still use Energy Star/SEER ratings.
The most important AC manufacturers are well known multinationals:
Amana, Bryant, Carrier, Coleman, Daikin, Danfoss, Fujitsu, Goodman, Hayward, Heil-Hvac, Honeywell, Lennox, Nordyne, Rheem, Ruud, Sanyo, Sears, Trane, WaterFurnace, York...
Contractors and service professional
To select AC contractors and AC service professionals, see: AC contractors and Professional Service Technicians.
See also:
Basics on Air Conditioning
Alternatives to air conditioners
Types of air conditioning
High-rated Air Conditioners
Ductless air conditioners
Room air conditioners
Portable Air Conditioners
Lowering AC bills
AC failures and improper operation
Maintenance
AC filters
Refrigerant charge
Outdoor Coils Cleaning
Indoor Coils Cleaning
Blower Cleaning
Room air conditioner maintenance
Sizing Air Conditioning
AC installation
Air conditioners vs. Heat pumps
