MIL-H-3177 Revision C, February 6, 1976
HEATERS, COOLANT, ENGINE:MULTIFUEL-BURNING, 24V DC
Includes all amendments and changes through Interim Notice 1, September 30, 1998
Additional Comments: INACTIVE FOR NEW DESIGN AFTER 09/30/98
This specification covers 24-volt direct-current, multifuel-burning, forced-draft, engine-coolant heaters.
The coolant heaters shall be of the following nominal capacities, as specified (see 6.2):
Capacity A - 15,000 Btu per hour. Capacity B - 30,000 Btu per hour. Capacity C - 60,000 Btu per hour.