Required clearance, between multiple flues.

Discussion in 'HVAC Heating & Cooling' started by lahabra, May 14, 2009.

  1. lahabra

    lahabra New Member

    Joined:
    Dec 21, 2007
    Location:
    California
    Required clearance, between multiple flues.

    Is it “ok†to vent a water heater and 2 gas Furnaces through a roof side by side? The vents would be Spaced about 3’ apart from each other? One would be gravity and the second would be Induced type “Bâ€, and the third would be Induced “PVCâ€.
     
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    Each manufacturer will have very specific directions in their installation manual about proximity of air intake to other (and their own) exhaust plus a relationship to operable windows and other obstructions. You need to consult those manuals for specific instructions.
     
  3. Sponsor

    Sponsor Paid Advertisement

     
  4. lahabra

    lahabra New Member

    Joined:
    Dec 21, 2007
    Location:
    California
    Yes the instructions are quite specific. It says: “Must be vented in accordance with ANSI Z223.1â€
     
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    Most I've dealt with have numerous pictures and drawings in the installation manual (not in the owner's manual) describing the do's and don'ts. Haven't tried searching for that spec...it might be on-line.
     
Similar Threads: Required clearance
Forum Title Date
HVAC Heating & Cooling Are dampers required at each ceiling diffuser? Apr 24, 2015
HVAC Heating & Cooling Freon Filling steps required?? May 24, 2011
HVAC Heating & Cooling HERS Test required when replacing furnace? Jan 28, 2010
HVAC Heating & Cooling Required Central Air Tonnage? Jul 14, 2009
HVAC Heating & Cooling Direct vent clearance to outside corner Feb 17, 2015

Share This Page