The Heil N4H3 is a single-stage heat pump with an efficiency of 13 SEER and 7.7 HSPF and a cooling capacity of 1.5 – 5 tons. The unit is capable of dual fuel heating when used with a compatible gas furnace and thermostat. The system features sound levels as low as 69 decibels and is protected by high and low pressure switches and a filter drier. Its galvanized steel cabinet has a powder coat finish for protection against corrosion and weather hazards.
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