22103427UNVENTED PROPANE GAS LOG HEATERNote: Use only original replacement parts.This will protect your warranty coverage forparts replaced under warranty.Parts Under WarrantyContact authorized dealers of this product.If they can’t supply original replacementpart(s), call DESA International’s Techni-cal Service Department at 1-800-323-5190.When calling DESA International, haveready• your name• your address• model number of your heater• how heater was malfunctioning• type of gas used (propane or natural gas)• purchase dateUsually, we will ask you to return the defec-tive part to the factory.Parts Not Under WarrantyContact authorized dealers of this product.If they can’t supply original replacementpart(s), call DESA International’s PartsDepartment at 1-800-972-7879 for referralinformation.When calling DESA International, haveready• model number of your heater• the replacement part numberREPLACEMENTPARTS18" Thermostat- 24" Thermostat- 30" Thermostat-Controlled Controlled ControlledBtu (Variable) 16,000/26,000 20,000/33,000 21,500/36,000Type Gas Propane Only Propane Only Propane OnlyIgnition Piezo Piezo PiezoManifold Pressure 7.9" W.C. 7.9" W.C. 7.9" W.C.Inlet GasPressure (in. of water)Maximum 14" 14" 14"Minimum* 11" 11" 11"* For purpose of input adjustmentShipping Weight 26 lbs. 30 lbs. 34 lbs.SPECIFICATIONS18" Variable 24" Variable 30" VariableManually- Manually- Manually-Controlled Controlled ControlledBtu (Variable) 16,000/26,000 20,000/33,000 21,500/36,000Type Gas Propane Only Propane Only Propane OnlyIgnition Piezo Piezo PiezoManifold Pressure 7.9" W.C. 7.9" W.C. 7.9" W.C.Inlet GasPressure (in. of water)Maximum 14" 14" 14"Minimum* 11" 11" 11"* For purpose of input adjustmentShipping Weight 26 lbs. 30 lbs. 34 lbs.TECHNICALSERVICEYou may have further questions about in-stallation, operation, or troubleshooting.If so, contact DESA International’s Techni-cal Service Department at1-800-DESA LOG (1-800-337-2564).When gas pressure is too low• pilot will not stay lit• burners will have delayed ignition• heater will not produce specified heat• propane/LP gas supply may be lowWhen gas quality is bad• pilot will not stay lit• burners will produce flames and soot• heater will backfire when litYou may feel your gas pressure is too low orgas quality is bad. If so, contact your localpropane/LP gas supplier.SERVICE HINTS