WebNov 18, 2024 · UL 1738 is a standard that does include specific testing and marking requirements for flue gas venting products, including PVC.” UL 1738 standard requirements For peace of mind, choose UL 1738 … WebThis flue merges the exhaust of both the hot water heater and the old furnace. With the new furnace however, I need to switch to 2" PVC and I am unable to connect this to the metal exhaust as the condensate created by the higher efficiency furnace is corrosive and will cause the exhaust flue to rust and create a carbon monoxide hazard.
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WebThe rules are found in various NFPA standards and in the IRC (International Residential Code.) This article is general in nature but for those who want to drill down into the details, most of the information can be found in IRC chapters 10, 13, 18 and 24. ... Multiple gas or oil furnaces or boilers, as well as hot water heaters, can be vented ... WebMar 4, 2016 · Exhaust pipe leaks are a serious cause for concern, since they can indicate a much greater issue. If you suspect that your furnace has an exhaust pipe leak, call your … iphone ctia
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See the National Fuel Gas Code, Chapter 24, Fuel Gas, that includes discussion of venting requirements in Section G2427 p. 360, Venting of Equipment (cited at the end of this page). … See more Above: Gas water heater direct vent clearance distances, adapted from AO Smith's Gas Water Heater's Owners Manual for Gas Models FSPH-75 270 series, cited at … See more See Chapter 7 beginning at page 152 and also see "Combustion Spillage" beginning on p. 160 in this example code:B149.1HB-00 Natural Gas and … See more WebAppliance operating flue temperatures vary from appliance to appliance. An appliance flue gas temperature rise could be between 15F and 30F above the entering water tempera-ture. This will determine what flue material is needed. Stainless Steel oiler ontrols: Maximum Operating Water Temperature = 190°F Maximum High Limit Setting = 200°F WebAir exhaust and intake openings that terminate outdoors should be protected with corrosion-resistant screens, louvers, or grills having a minimum opening size of ¼ inch (6 millimeters) and a maximum opening size of ½ inch (13 millimeters), in any direction. Openings should be protected against local weather conditions. iphone csn number