PORTABLEFORCEDAIR HEATEROWNER’S MANUALIMPORTANT: Read and understand this manual before assembling, starting,or servicing heater. Improper use of heater can cause serious injury. Keepthis manual for future reference.ARL LOGO G 004®Heater Sizes:35,000, 50,000, and 55,000 Btu/HrH.S.I. Series