107884For more information, visit www.desatech.comFor more information, visit www.desatech.com24SPECIFICATIONSSPECIFICATIONSREPLACEMENT PARTSSERVICE HINTSTECHNICAL SERVICESERVICE PUBLICATIONSWMN20GN30, GN30T GWN20GWN30T GWN20TBtu (Variable) 15,000/30,000 10,000/20,000Type Gas Natural Only Natural OnlyIgnition Piezo PiezoPressure Regulator Setting 3" W.C. 3" W.C.Inlet Gas Pressure (in. of water)Maximum 10.5" 10.5"Minimum 4" 4"Dimensions, Inches (H x W x D)Heater 24 1/ 4 x 25 3/ 4 x 7 24 1/ 4 x 18 1/ 4 x 7Carton 26 3/ 8 x 28 1/ 8 x 10 26 3/ 8 x 20 7/ 8 x 10Weight (pounds)Heater 28 20Shipping 33 25WMP20GP30, GP30T GWP20GWP30T GWP20TBtu (Variable) 15,000/30,000 10,000/20,000Type Gas Propane/LP Only Propane/LP OnlyIgnition Piezo PiezoPressure Regulator Setting 8" W.C. 8" W.C.Inlet Gas Pressure (in. of water)Maximum 14" 14"Minimum 11" 11"Dimensions, Inches (H x W x D)Heater (Includes knobs & grill) 24 1/ 4 x 25 3/ 4 x 7 24 1/ 4 x 18 1/ 4 x 7Carton 26 3/ 8 x 28 1/ 8 x 10 26 3/ 8 x 20 7/ 8 x 10Weight (pounds)Heater 28 20Shipping 33 25REPLACEMENTPARTSNote: Use only original replacement parts. Thiswill protect your warranty coverage for partsreplaced under warranty.PARTS UNDER WARRANTYContact authorized dealers of this product. If theycan’t supply original replacement part(s), callDESA International’s Technical Service Depart-ment at 1-866-672-6040.When calling DESA International, have ready• your name• your address• model and serial numbers of your heater• how heater was malfunctioning• type of gas used (propane/LP or natural gas)• purchase dateUsually, we will ask you to return the part to thefactory.PARTS NOT UNDER WARRANTYContact authorized dealers of this product. If theycan’t supply original replacement part(s), eithercontact your nearest Parts Central (see page 27) orcall DESA International at 1-866-672-6040 forreferral information.When calling DESA International, have ready• model number of your heater• the replacement part numberTECHNICAL SERVICEYou may have further questions about installation, operation, ortroubleshooting. If so, contact DESA International’s TechnicalService Department at 1-866-672-6040. When calling please haveyour model and serial numbers of your heater ready.You can also visit DESA International’s technical service web siteat www.desatech.com.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. If so, contact your localnatural or propane/LP gas supplier. SERVICE PUBLICATIONSYou can purchase a service manual from the address listed on theback page of this manual. Send a check for $5.00 payable to DESAInternational.