www.desatech.com 111044-01JSAFETy INFORMATIONTAbLE OF CONTENTSSafety Information ............................................... Local Codes......................................................... 4Product Information ............................................. 4Product Features ................................................. 5Unpacking............................................................ 5Assembly ............................................................. 5Air For Combustion and Ventilation ..................... 6Installation ........................................................... 8Operating Fireplace ........................................... 18Inspecting Burner .............................................. 0Cleaning and Maintenance ................................ 0Troubleshooting ................................................. Specifications .................................................... 6Service Hints ..................................................... 6Technical Service............................................... 6Replacement Parts ............................................ 6Accessories ....................................................... 7Illustrated Parts Breakdown and Parts List........ 8Parts Centrals .................................................... 30Warranty Information ...........................Back CoverWARNING: Improper in-stallation, adjustment, al-teration, service or main-tenance can cause in-jury or property damage.Refer to this manual forcorrect installation andoperational procedures.For assistance or addi-tional information con-sult a qualified installer,service agency or the gassupplier.WARNING: This is anunvented gas-fired heat-er. It uses air (oxygen)from the room in whichit is installed. Provisionsfor adequate combustionand ventilation air mustbe provided. Refer to Airfor Combustion and Ven-tilation section on page 6of this manual.This appliance may be in-stalled in an aftermarket,*permanently located,manufactured (mobile)home, where not prohib-ited by local codes.This appliance is only foruse with the type of gasindicated on the ratingplate. This appliance isnot convertible for usewith other gases.* Aftermarket: Completion of sale, not forpurpose of resale, from the manufacturerState of Massachusetts: The installationmust be made by a licensed plumber orgas fitter in the Commonwealth of Mas-sachusetts.Sellers of unvented propane or naturalgas-fired supplemental room heaters shallprovide to each purchaser a copy of 527CMR 30 upon sale of the unit.Vent-free gas products are prohibited forbedroom and bathroom installation in theCommonwealth of Massachusetts.