CSIA ACTUAL CERTIFICATION PAPER
2026 QUESTIONS WITH ANSWERS FULL
SOLUTION.
■ Glazed creosote results from 3 things.... Answer: slow smoldering fire,
too many elbows,
improperly sized vent
■ What is "pyrolysis"? Answer: The chemical alteration of wood as a
result of the application of heat
■ Perfect combustion results in:. Answer: Only Co2 and water vapor
■ Creosote formation:. Answer: Tar fog or droplets of liquids condense
in the venting system
■ Residence time. Answer: length of time smoke remains in the chimney
■ Magnetic thermometers only display about __% of actual flue temp.
Answer: 50%
,■ Creosote should be removed because.... Answer: Fire risk,
corrosive to steel, connectors, and mortar
■ Why should flashing be embedded in mortar? Answer: prevent leaks
■ Baffle location and purpose? Answer: Located between the firebox
and flue collar.
Purpose is to complete better combustion
■ What does the barometric draft regulator do? Answer: Prevents
excessive draft
■ Smoke chamber height SHALL NOT be greater than the ______
______ of the fireplace fire chamber.. Answer: Inside width
■ Combustion needs.... Answer: Heat, Oxygen, and Fuel
■ Nominal dimensions can vary by how much? Answer: Nominal
dimensions vary by 1/2"
■ What is combustion? Answer: The rapid oxidation of fuel producing
heat and light.
, ■ Parging the smoke chamber improves FLOW by.... Answer: Reducing
turbulence, and eliminating corbeling
■ Connector dampers should not block greater than ___% of the
connector when closed.. Answer: 80%
■ Heat reclaimer / extractor. Answer: 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? Answer: Level 2
■ Hearth stove should only be connected to.... Answer: A properly built
masonry fireplace
■ What problems are created when mortar joints between flue tiles are
not smoothed? Answer: May create turbulence and increased residence
time of exhaust.
■ 3 Positive aspects of Cast-in-Place liners. Answer: 1. adds structural
integrity to chimney
2. resists corrosive deposits
3. able to support any fuel or appliance when sized properly
2026 QUESTIONS WITH ANSWERS FULL
SOLUTION.
■ Glazed creosote results from 3 things.... Answer: slow smoldering fire,
too many elbows,
improperly sized vent
■ What is "pyrolysis"? Answer: The chemical alteration of wood as a
result of the application of heat
■ Perfect combustion results in:. Answer: Only Co2 and water vapor
■ Creosote formation:. Answer: Tar fog or droplets of liquids condense
in the venting system
■ Residence time. Answer: length of time smoke remains in the chimney
■ Magnetic thermometers only display about __% of actual flue temp.
Answer: 50%
,■ Creosote should be removed because.... Answer: Fire risk,
corrosive to steel, connectors, and mortar
■ Why should flashing be embedded in mortar? Answer: prevent leaks
■ Baffle location and purpose? Answer: Located between the firebox
and flue collar.
Purpose is to complete better combustion
■ What does the barometric draft regulator do? Answer: Prevents
excessive draft
■ Smoke chamber height SHALL NOT be greater than the ______
______ of the fireplace fire chamber.. Answer: Inside width
■ Combustion needs.... Answer: Heat, Oxygen, and Fuel
■ Nominal dimensions can vary by how much? Answer: Nominal
dimensions vary by 1/2"
■ What is combustion? Answer: The rapid oxidation of fuel producing
heat and light.
, ■ Parging the smoke chamber improves FLOW by.... Answer: Reducing
turbulence, and eliminating corbeling
■ Connector dampers should not block greater than ___% of the
connector when closed.. Answer: 80%
■ Heat reclaimer / extractor. Answer: 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? Answer: Level 2
■ Hearth stove should only be connected to.... Answer: A properly built
masonry fireplace
■ What problems are created when mortar joints between flue tiles are
not smoothed? Answer: May create turbulence and increased residence
time of exhaust.
■ 3 Positive aspects of Cast-in-Place liners. Answer: 1. adds structural
integrity to chimney
2. resists corrosive deposits
3. able to support any fuel or appliance when sized properly
