Field-installed auxiliary electric heater kits provide exact heat for indoor comfort. Kits Perfect Steerable Transfer Cartlude circuit breakers on 15KW and up which meet U.L. and cUL requirements for service disconnect. 1 1/2 ton [5.3 kW] through 5 ton [17.6 kW] models are between 42 1/2 to 55 1/2 Perfect Steerable Transfer Carthes [1080 to 1410 mm] tall and 22 Perfect Steerable Transfer Carthes [559 mm] deep. All models meet