6W415-0788 / B / 11.03.104.1AThe installation must conform with local codes or, inabsence of local codes, the National Gas and PropaneInstallation Code CSA B149.1 in Canada, or the NationalFuel Gas Code, ANSI Z223.1 / NFPA 54 in the UnitedStates. Suitable for mobile home installation if installed inaccordance with the current standard CAN/CSA Z240MHSeries, for gas equipped mobile homes, in Canada orANSI Z223.1 and NFPA 54 in the United States.As long as the required clearance to combustibles ismaintained, the most desirable and beneficial location for an appliance is in the center of a building, therebyallowing the most efficient use of the heat created. The location of windows, doors and the traffic flow in theroom where the appliance is to be located should be considered. If possible, you should choose a locationwhere the vent will pass through the house without cutting a floor or roof joist.If the appliance is installed directly on carpeting, vinyl tile or other combustible material other than woodflooring, the appliance shall be installed on a metal or wood panel extending the full width and depth.Some appliances have optional fans or blowers. If an optional fan or blower is installed, the junction box mustbe electrically connected and grounded in accordance with local codes, use the current CSA C22.1 CanadianElectrical Code in Canada or the ANSI/NFPA 70 National Electrical code in the United States.We suggest that our gashearth products be installedand serviced by professionalswho are certified in the U.S.by the National FireplaceInstitute® (NFI) as NFI GasSpecialistswww.nficertified.orgWhen the appliance is installed directly on carpeting, vinyl tile or other combustible material other than woodflooring, the appliance shall be installed on a metal or wood panel extending the full width and depth.The appliance, when installed with a blower, must be electrically connected and grounded in accordance withlocal codes. In the absence of local codes, use the current CSA C22.1 Canadian Electrical Code in Canada orthe ANSI/NFPA 70-1996 National Electrical Code in the United States. The blower power cord must be con-nected into a properly grounded receptacle. The grounding prong must not be removed from the cord plug.2.3 GENERAL INFORMATIONFOR YOUR SATISFACTION, THIS APPLIANCE HAS BEEN TEST-FIRED TO ASSURE ITS OPERATIONAND QUALITY!GDS60 GS60NG LP NG LPAltitude (FT) 0-4,500 0-4500 0-4500 0-4500Max. Input (BTU/HR) 35,000 (Top vent)21, 000 (Rear vent)31,500 (Top vent)21,000 (Rear vent)35, 000 31,500Max. Output (BTU/HR) 27,300 24,570 27,300 24,570Max. Steady StateEfficiency (w/the fan on)78% 78% 78% 78%Max. A.F.U.E. 72% 71% 72% 71%Min. Inlet Gas SupplyPressure4.5" Water Column 11" Water Column 4.5" Water Column 11" Water ColumnMax. Inlet Gas SupplyPressure7" Water Column 13" Water Column 7" Water Column 13" Water ColumnManifold Pressure (Un-der Flow Conditions)3.5" Water Column 10" Water Column 3.5" Water Column 10" Water Column