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IMPORTANT: Read and understand this manual before assembling, starting or servicing
heater. Improper use of heater can cause serious injury. Keep this manual for future reference.
Heater Sizes: 20 and 30 KW
Models: GK20 and GK30
PORTABLE FORCED AIR HEATERS
OWNER’S MANUAL
TABLE OF CONTENTS
SAFETY INFORMATION ............................................................ 2
PRODUCT IDENTIFICATION ..................................................... 3
UNPACKING ............................................................................... 3
ASSEMBLY ................................................................................. 3
FUELS......................................................................................... 4
VENTILATION ............................................................................. 4
THEORY OF OPERATION ......................................................... 4
OPERATION ............................................................................... 5
STORING, TRANSPORTING, OR SHIPPING............................ 5
PREVENTATIVE MAINTENANCE SCHEDULE ......................... 6
TROUBLESHOOTING ................................................................ 6
SERVICE PROCEDURES .......................................................... 8
WIRING DIAGRAM ................................................................... 14
SPECIFICATIONS .................................................................... 15
ACCESSORIES ........................................................................ 15
ILLUSTRATED PARTS AND PARTS LIST................................ 16
WHEELS AND HANDLES ........................................................ 20
EC CONFORMITY DECLARATION.......................................... 21