The Cayenne separated combustion unit heater comes in a low-profile cabinet design, which is ideal for residential garages and workshops, states the manufacturer. The company states that the separated combustion units are also suited for installation in environments that may be dusty, slightly corrosive, or humid, or in buildings with a slight negative pressure. The unit heater is available in sizes ranging from 45,000 to 125,000 Btuh.

Advanced Distributor Products, 2175 W. Park Place, Stone Mountain, GA 30087; 800-848-2270;

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