scope:

This standard covers the heating capacity (expressed in British Thermal Units per hour, Btuh) and general application characteristics for heaters with various capacities and operating characteristics. It covers vehicular compartment heaters, engine coolant heaters, space heaters (blower and nonblower types), (fuel and all-electric types), and portable duct-type heaters. These models comprise essentially the complete Standard Family of Military Heaters to satisfy the various requirements. Data sheets of operating and physical characteristics as presently established are presented for each heater. Information is also included on units currently under development which will be added to the Standard Family as they become available.

When available, a National Stock Number is given for each heater listed herein, and it should be used for referencing a particular model. Reference to models without National Stock Numbers should be made by the nomenclature listed. When it has been determined that a special nonfamily item is required, the requirement for the special item with supporting documentation should be processed in accordance with procedures contained in AR 700-115.