What is "pyrolysis"? - The chemical alteration of wood as a result of the application of
heat
Perfect combustion results in: - Only Co2 and water vapor
Creosote formation: - Tar fog or droplets of liquids condense in the venting system
Residence time - length of time smoke remains in the chimne...
CSIA Certification Exam With Correct Answers Graded A+
Draft is measured by... - inches in water column
Definition of Draft - Difference of pressure INSIDE and OUTSIDE the venting system
Easiest solution to "back puffing" stove? - Give it more air
What has the greatest effect on FLOW? - Size of venting system passageway
A masonry chimney is required by what to have a cleanout if the flue previously vented a solid or
liquid fuel appliance? - NFPA 54 (National Fuel Gas Code)
High efficiency gas + oil appliances generate a lot of____ which can____ - water vapor,
deteriorate a chimney quickly
Info on use and installation of gas appliance draft hoods can be found where? - National
Fuel Gas Code
Category II, III, and IV appliance venting requirements can be found... - in the
installation instructions
Glazed creosote results from 3 things... - slow smoldering fire,
too many elbows,
improperly sized vent
,What is "pyrolysis"? - The chemical alteration of wood as a result of the application of
heat
Perfect combustion results in: - Only Co2 and water vapor
Creosote formation: - Tar fog or droplets of liquids condense in the venting system
Residence time - length of time smoke remains in the chimney
Magnetic thermometers only display about __% of actual flue temp - 50%
Creosote should be removed because... - Fire risk,
corrosive to steel, connectors, and mortar
Why should flashing be embedded in mortar? - prevent leaks
Baffle location and purpose? - Located between the firebox and flue collar.
Purpose is to complete better combustion
What does the barometric draft regulator do? - Prevents excessive draft
Smoke chamber height SHALL NOT be greater than the ______ ______ of the fireplace fire
chamber. - Inside width
Combustion needs... - Heat, Oxygen, and Fuel
, Nominal dimensions can vary by how much? - Nominal dimensions vary by 1/2"
What is combustion? - The rapid oxidation of fuel producing heat and light.
Parging the smoke chamber improves FLOW by... - Reducing turbulence, and eliminating
corbeling
Connector dampers should not block greater than ___% of the connector when closed. -
80%
Heat reclaimer / extractor - Fits inline with connector, and is NOT to be used with wood
burning
What inspection level determines if a wall pass-through is installed properly? - Level 2
Hearth stove should only be connected to... - A properly built masonry fireplace
What problems are created when mortar joints between flue tiles are not smoothed? -
May create turbulence and increased residence time of exhaust.
3 Positive aspects of Cast-in-Place liners - 1. adds structural integrity to chimney
2. resists corrosive deposits
3. able to support any fuel or appliance when sized properly
What never to do to a blocked passage in a chimney? - Never pound from above with a
weight. (Might block so bad opening a wall is necessary to remove buildup)
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