Multiple gas or oil furnaces or boilers, as well as hot rewards bestwestern co uk water heaters, can be vented into one flue.
How about hooking up a woodstove into an existing masonry fireplace flue?
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.
As a general rule, dont mix natural draft appliances and fan assisted appliances on the same flue.The rules are found in various.And even though the question always comes across as how many on one chimney?Appliances include fireplaces, woodstoves, furnaces, boilers, pellet stoves, hot water heaters, etc.The connectors for the appliances have to be offset.In other words, only one appliance per flue, period.The liner for the woodstove has to be properly sized, which generally means the same size as the collar-size coming from the appliance.Both or all appliances have to be on the same floor.Lets make sure to discuss how many on one flue?(A flue is not the same as a damper either; a damper is something that can block the flue.).IRC M1801.12 pDF Here ) Multiple solid fuel prohibited.Theyre all individual appliances.The smaller of the two connectors go into the flue above the larger one (usually meaning the hot water heater).Solid fuel includes coal or corn or cherry pits, but for most of us that means cord wood or pellets.Make sure the chimney is clear of combustible materials before inserting the smaller liner.They cant come into the flue at the same height, and especially never directly across from each other.If venting two or more appliances on the same flue, you have to know the flue can handle it, as determined but the BTU input and other factors.This rule is more complicated than this, but if this is your case, be sure you refer to the manufacturers instructions.
Every solid fuel applance cheap birthday gifts for kids gets ITS OWN vent!
The nfpa 54 (Gas) and the nfpa 31 (Oil) show diagrams in great detail, and cover sizing the connectors as well (connectors are the smoke pipes that carry the fumes from the appliance to the chimney flue.) Read another helpful article by the American Society.
A solid-fuel-burning appliance or fireplace shall not connect to a chimney passageway venting another appliance.
Gas fireplaces are factory-built systems.