ClimateMaster is the worldâs largest and most progressive manufacturer of water source and geothermal heat pump systems for residential and commercial markets. We are committed to innovation and dedicated to environmentally clean, economically sound, and superbly comfortable home and business environments. Each ClimateMaster product is produced in our state-of-the-art facility utilizing quality management systems. We strive for the highest product quality and service after the sale to give you peace of mind.