www.desatech.com119169-01E 23SPECIFICATIONSNY108• 10,000/20,000 Btu/Hr (Variable)• Natural Only• Piezo Ignition• Pressure Regulator Setting: 3" W.C.• Inlet Gas Pressure (in. of water):Maximum - 10.5", Minimum - 4"NY109• 10,000/20,000 Btu/Hr (Variable)• Propane/LP Only• Piezo Ignition• Pressure Regulator Setting: 8" W.C.• Inlet Gas Pressure (in. of water):Maximum - 14", Minimum - 11"SERVICE HINTSWhen Gas Pressure Is Too Low• pilot will not stay lit• burner will have delayed ignition• heater will not produce specified heat• propane/LP gas supply may be lowYou may feel your gas pressure is too low. Ifso, contact your local natural or propane/LPgas supplier.TECHNICAL SERVICEYou may have further questions about instal-lation, operation or troubleshooting. If so,contact DESA Heating Products’ TechnicalService Department at 1-866-672-6040.When calling please have your model andserial numbers of your heater ready.You can also visit DESA Heating Products’ tech-nical service web site at www.desatech.com.REPLACEMENT PARTSNote: Use only original replacement parts.This will protect your warranty coverage forparts replaced under warranty.PARTS UNDER WARRANTYContact authorized dealers of this product. Ifthey can’t supply original replacement part(s),call DESA Heating Products’ Technical Ser-vice Department at 1-866-672-6040.When calling DESA Heating Products, haveready• your name• your address• model and serial numbers of your heater• how heater was malfunctioning• type of gas used (propane/LP or naturalgas)• purchase dateUsually, we will ask you to return the part tothe factory.PARTS NOT UNDER WARRANTYContact authorized dealers of this product.If they can’t supply original replacementpart(s), either contact your nearest PartsCentral (see page 27) or call DESA Heat-ing Products at 1-866-672-6040 for referralinformation.When calling DESA Heating Products, haveready• model number of your heater• the replacement part numberSERVICE PUBLICATIONSYou can purchase a service manual fromthe address listed on the back page of thismanual. Send a check for $5.00 payable toDESA Heating Products.