TM 9-4520-257-12&P 0002 00
Likenesses Of The H-45 Type I and Type II Characteristics, Capabilities, And Features
CAPABILITIES AND FEATURES
Operate without the use of electrical power.
Produce between 20,000 and 45,000 BTU/hr.
Have an operator instruction plate mounted on
heater body base; however, the instruction plate
only applies when using the heater in the liquid
Type I Solid Fuel
Operates with either wood or coal.
Type II Liquid Fuel
Operates with a variety of liquid fuels: JP-8; DF-A,
DF-1, or DF-2; JP-5; kerosene; Jet A-1; Jet A;
gasoline (emergency only); JP-4 (emergency
Uses 5-gallon fuel can. (Not provided.)
Has a fuel shut-off valve.
Major Components Of The H-45 Type I (Solid Fuel) Heater
Heater assembly. The H-45 Type I (Solid Fuel) Heater consists of a heater body base (1) and a top
heater shell (2). The heater body base (1) serves as a base for the assembled heater and houses the
grates (3) during operation. Two heater body base doors (4) are cut into the heater body base (1) at
opposite positions to allow air for combustion. Three evenly spaced bolt and wing nut assemblies (5) are
welded to the heater body base (1). Three evenly spaced brackets (6) are welded to the top heater shell.
The three bolt and wing nut assemblies (5) secure the top heater shell (2) to the heater body base (1)
when the bolts are slid into the brackets (6) and the wing nuts are tightened. During the operation of the
H-45 Type I (Solid Fuel) Heater, the top heater shell (2) is placed onto the heater body base (1) and
secured. The top heater shell (2) has one internally flanged, 9-inch (22.86-centimeter (cm)) circular cutout
(7) to accommodate the lid (8), and one externally flanged 4-inch (10.16-cm) cutout (9) that serves as
mounting for the stack pipe sections (10).
Grates and adapter ring. Two grates (3) that hold solid fuel are held together by a cotter pin and
supported by an adapter ring (11) that mounts on the heater body base (1).
Exhaust system. The exhaust system consists of six stack-pipe sections (10) connected end to end,
leading from the 4-inch (10.16-cm) externally flanged circular cutout (9) on the top heater shell (2) through
the tent roof (12). A flue damper (13) controls airflow, while a spark arrester (14) provides fire safety. The
stack pipe is topped by a stack cap assembly (15), to which three wire ropes and guy lines (16) are
attached to provide stability.