2900 Selma Highway, Montgomery AL 36108 USA
PH: +1.334.386.5400 (option 2) FAX: +1.334.386.5450 WEB: www.hartzell.aero
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MM10001
Dated 1/1/08
Rev L dated 5/21/15
2. INTRODUCTION:
Aircraft combustion heaters manufactured by Hartzell Engine Technologies LLC are designed
primarily to provide heat to the passengers and crew during ground and/or flight. Additional uses are
de-icing and engine preheating. Heat output generally is from 15,000 to 70,000 BTU.
Heaters are FAA TSO-C20 approved and are designed to use the aircraft fuel (aviation gas or jet) in
both pressurized and non-pressurized aircraft. Both 12 and 24 volt applications are available.
Designated models are CD15K, CD25K, CD35K, CD45K, CD50K, CD55K & CD70K, with a p/n
ending in “-1”.