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Multiple Flues in Chimney

E

Eric Roberts

Member
Joined
Sep 17, 2012
Messages
2
This is my first post so i hope that i am in the right forum. My project is in Mountain View, CA and I am trying to find any codes that may apply to my question.I will have a chase that serves as a termination for both a a Direct Vent Fireplace and and my environmental air duct that is serving a range/oven. I am thinking if i include a divider plate to create 3' of seperation per cmc 504.5, i should be able to have multiple termination caps in the same chase. I am not proposing to share or connect either duct system with any other flue serving the other appliance. And both will maintin the manuf. rec'd clearances to combustibles. Both the venting for the Direct Vent Fireplace is through a manuf. approved vent system to a termination cap (Simpson Dura-Vent) The exhaust vent from the range/oven is also through its own seperate vent system to a termination cap. And, i understand that i would not want to intake exhaust from the environmental air duct. I can maintain the 3' clearance from openings into buildings mentioned at CMC 504.5. Is there anything preventing me from including both metal ducts in a shaft if i can maintain clearances to combustibles. FYI, this is for a project that is not built yet, and still needs to go through the city's plan review process. Trying to 'hide' the mushroom terminations in a shaft 'false chimney' Any input is greatly appreciated Thanks for your time

View attachment 1709

Z Chimney Question.pdf

Z Chimney Question.pdf
 
Eric Roberts said:
This is my first post so i hope that i am in the right forum. My project is in Mountain View, CA and I am trying to find any codes that may apply to my question.

... I can maintain the 3' clearance from openings into buildings mentioned at CMC 504.5....
Click to expand...
Don't have a copy of that code. Does it really classify a chimney flue as an opening to be separated from an environmental exhaust vent?

Bill
 
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