TW2000
The National Standard of Canada, Installation Code for
Two or more appliances shall not be connected to the same chimney flue unless:
a.The appliances are located on the same story;
b.A negative pressure is maintained at the flue collar of each appliance;
c.Each appliance is provided with a means to control the rate of flow of air or flue gases through the appliance combustion and heat exchanger chambers. Where limitations on flue pressure (draft) are contained in the manufacturer’s instructions, such means shall be capable of maintaining at the flue collar, the pressure specified by the appliance manufacture; NOTE: For the purpose of this Clause, draft controls include ash pit air control dampers, dampers or draft slides wherever located, over fire and flue key pipe dampers, and check draft controls located on or in the flue pipe.
d.The flue pipes of the appliances are connected to a manifold as close to the chimney as practicable or directly to the chimney in the following order:
(i)If only solid fuel is used, the flue pipe from the smallest appliance shall be on top (downstream);
(ii)If different fuels are used as permitted in Clause 5.2.7, the oil flue pipe shall be on top (downstream); and the solid fuel flue pipe on the bottom (upstream); and
e.The chimney flue is capable of venting the flue gas by natural draft when all appliances not interlocked to prevent simultaneous firing are firing at their maximum rate at the same time.
WARNING: If this setting is exceeded it could cause a solid fuel fire to burn out of control.
When installing a
TW2000 | 14 | 10/6/05 |
