Save this manual for future reference.For more information, visit www.desatech.com30/35/40,000BTU/HRPROPANE CONSTRUCTION FORCED AIR HEATEROWNER'S MANUALIMPORTANT: Read and understand this manual beforeassembling, starting or servicing heater. Improper useof heater can cause serious injury. Keep this manual forfuture reference.GENERAL HAZARD WARNING:Failure to comply with the precautions and instructionsprovided with this heater, can result in death, seriousbodily injury and property loss or damage from hazardsof fire, explosion, burn, asphyxiation, carbon monoxidepoisoning and/or electrical shock.Only persons who can understand and follow the in-structions should use or service this heater.If you need assistance or heater information such as an in-structions manual, labels, etc. contact the manufacturer.TABLE OF CONTENTSSafety Information ............................................... 2Unpacking ........................................................... 3Product Identification ........................................... 3Theory of Operation ............................................ 3Assembly ............................................................. 4Propane Supply ................................................... 4Installation ........................................................... 5Ventilation ........................................................... 5Operation ............................................................ 6Storage ................................................................ 6Maintenance ........................................................ 7Service Procedures ............................................. 7Specifications ..................................................... 9Troubleshooting ................................................. 10Accessories ........................................................11Technical Service ...............................................11Replacement Parts .............................................11Illustrated Parts Breakdown and Parts List ....... 12Warranty and Repair Service ..............Back Cover