CSIA Certification| Questions and answers | Updated RATED A+ | 2026
Draft is measured by... - (answer)inches in water column
Definition of Draft - (answer)Difference of pressure INSIDE and OUTSIDE the venting system
Easiest solution to "back puffing" stove? - (answer)Give it more air
What has the greatest effect on FLOW? - (answer)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? - (answer)NFPA 54 (National Fuel Gas Code)
High efficiency gas + oil appliances generate a lot of____ which can____ - (answer)water vapor,
deteriorate a chimney quickly
Info on use and installation of gas appliance draft hoods can be found where? - (answer)National Fuel
Gas Code
Category II, III, and IV appliance venting requirements can be found... - (answer)in the installation
instructions
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
, CSIA Certification| Questions and answers | Updated RATED A+ | 2026
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%
Draft is measured by... - (answer)inches in water column
Definition of Draft - (answer)Difference of pressure INSIDE and OUTSIDE the venting system
Easiest solution to "back puffing" stove? - (answer)Give it more air
What has the greatest effect on FLOW? - (answer)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? - (answer)NFPA 54 (National Fuel Gas Code)
High efficiency gas + oil appliances generate a lot of____ which can____ - (answer)water vapor,
deteriorate a chimney quickly
Info on use and installation of gas appliance draft hoods can be found where? - (answer)National Fuel
Gas Code
Category II, III, and IV appliance venting requirements can be found... - (answer)in the installation
instructions
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
, CSIA Certification| Questions and answers | Updated RATED A+ | 2026
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%
