Download Raypak 1001 Boiler User Manual
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SECTION J-1 Natural Draft Vertical Venting Without Add-on Condensing Heat Exchanger (Category I) Figure J-1 NATURAL DRAFT VERTICAL VENT WITHOUT ADD-ON CONDENSING HEAT EXCHANGER* NOTE: *Rear venting is recommended to minimize interference with water piping **Vent lengths are based on a lateral length of 2 feet. Refer to the latest edition of the National Fuel Gas Code for further details. (ANSI Z223.1), or in Canada the latest edition of CAN/CGA-B149.1 and B149.2. 31