CO Dangers, Dr. D. Penney



Furnace Dangers:


CO "Leakage" into the Breathing Space:

  • Cracked, leaking heat exchanger
  • Hole in flue pipe; incorrect joining of pipes
  • Leaking chimney
    - Disconnection
    - Construction holes
    - Rust-through (leaking)
  • Plugging of flue pipe / chimney
    - Bird's nest, leaves
    - Construction materials
    - Plastic / tarp (in roof repair)
    - Soot, creosote, tar
    - Spalling of chimney interior
    - Closure during construction of building next door
  • Back-drafting (ie. draft inadequate)
    - Wind
    - Too low chimney
    - Cold chimney
    - Too tight construction
    - Geography, roof peak/edge
    - Other devices generating negative pressure (eg. fans)
    - Stack effect
    - No scuttle
  • Blow-back - clogged combustion chamber (soot, etc.)
  • Re-uptake of exhaust gases (chimney to fresh air intake)
  • Over-firing (inadequate amounts of oxygen)
  • Poor installation / maintenance
  • Unvented combustion devices
    - Kitchen ranges / stoves
    - Sterno heating food
    - Gas logs (some)
    - Devices not designed for indoor use (generators, concrete saws, etc.)
  • Auto exhaust from garage
  • Explosives products
  • Mine gases
  • Fire

  • ...... last changed 05/07/03


    Back to Furnace Index