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• We recommend you use flues classified as prefabricated or masonry all-fuel chimney or type-B vent. See Vent Types,page 10. • If using old vent, check vent for soot, creosote, and loose particles. If vent is damaged, repair or replace it before using heater. • Extend the vertical section of vent pipe at least three feet above roof penetration. • Extend the vertical section of vent pipe at least two feet above the highest point of any roof within ten feet. • The horizontal run of vent pipe should rise at least 1/4 inch for each foot of run. • Support the vent pipe at least every five feet along its length. Do not use combustible materials to support vent pipe. • Never extend vent pipe horizontally through outside wall and terminate. You must connect a vertical run of vent pipe to the horizontal run. The vertical run must be at least 25% longer than the horizontal run. • Install vent or chimney cap that is approved for use with vented gas room heaters. • Do not use vent pipe smaller in diameter than that of the heater draft hood outlet. • Do not use dampers in the vent pipes. • Vertical height of vent must be greater than five feet above vent connection at draft hood. 8 INSTALLING HEATER Continued VENTING HEATER (continued) WARNING Do not vent heater in any of the following ways (see Figure 4). Heater must be vented to the outdoors. Never vent heater to another room or inside a building. The vertical section of vent pipe must extend at least two feet above the highest point of any roof within ten feet. Never extend vent pipe horizontally through outside wall and terminate. You must connect a vertical run of vent pipe to the horizontal run. The vertical run must be at least 25% longer than the horizontal run. ........ Never extend vent pipe horizontally through a chimney or flue. You must connect a vertical run of vent pipe to the horizontal run. The vertical run must be at least 25% longer or five feet minimum than the horizontal run. .......... Less than 5' between elbows Vertical run of pipe must be at least five feet from elbow to elbow. Figure 4 - Improper Venting Systems Continued 9 INSTALLING HEATER Continued VENTING HEATER (continued) Proper Size Vent To safely vent heater, the vent connector pipe must be the same diameter as the draft hood outlet on the rear of the heater. Pipe that is too small can cause flue gas to spill from the heater. Fasten vent connector to the draft hood outlet with a sheet metal screw. Vent Types Prefabricated or Masonry All-Fuel Chimney -This is a masonry chimney or a residential-type prefabricated chimney. Only use prefabricated chimneys listed by Underwriters Laboratories (UL), Inc. Type-B Vent -These vents are made of noncombustible, corrosion resistant material. They are certified by a nationally recognized testing agency. Type-B vents are double-walled pipe. Clearances to combustible construction must be in accordance with the listing of the particular type-B vent. Type-B vents are currently listed as B-1, B-1 1/2, and B-2. The illustrations below show both vent types. The illustration shows typical construction of each type of venting system. Minimum clearances and lengths are added to the illustrations. Terminate at least 5' above draft hood. If vent extends over 5' above roof, support with guy wires or braces. Figure 5 - Typical Construction of Venting Systems 5' Min. 6" Min. Heater Vent Connector Lock Joints Vertical Vent 53" Min. Maintain Listed Clearance of Vent Lock Joints Position Firestop Support Laterals Lock Joints Support If Necessary Maintain Listed Clearance of Vent Vent Cap Must Be At Least 2 Feet Above Highest Point Within 10 Feet. Seal Around Collar and Flashing Type-B VentPrefabricated or Masonry All-Fuel Chimney Heater 10 INSTALLING HEATER Continued CONNECTING TO GAS SUPPLY WARNING A qualified service person must connect heater to gas supply. Follow all local codes. CAUTION Never connect heater directly to the propane supply. This heater requires an external regulator (not supplied). Install the external regulator between the heater and propane supply. The installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incoming gas pressure, heater regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure 6. Pointing the vent down protects it from freezing rain or sleet. BULK PROPANE TANK VENT External Regulator Vent Pointing Down Figure 6 - External Regulator with Vent Pointing Down CAUTION Use only new, black iron or steel pipe. Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe that is 1/2" in diameter or greater to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur. The gas supply line to your heater must be 1/2 inch in diameter or larger. If the supply line branches to serve two or mo...

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