CSIA Cer fica on| Ques ons and answers | Updated
RATED A+ | 2026
Dra is measured by...
inches in water column
Defini on of Dra
Difference of pressure INSIDE and OUTSIDE the ven ng system
Easiest solu on to "back puffing" stove?
Give it more air
What has the greatest effect on FLOW?
Size of ven ng 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 (Na onal Fuel Gas Code)
High efficiency gas + oil appliances generate a lot of____ which can____
water vapor, deteriorate a chimney quickly
Info on use and installa on of gas appliance dra hoods can be found where?
Na onal Fuel Gas Code
Category II, III, and IV appliance ven ng requirements can be found...
in the installa on instruc ons
Glazed creosote results from 3 things...
slow smoldering fire,
too many elbows,
improperly sized vent
What is "pyrolysis"?
The chemical altera on of wood as a result of the applica on of heat
, Perfect combus on results in:
Only Co2 and water vapor
Creosote forma on:
Tar fog or droplets of liquids condense in the ven ng system
Residence me
length of me smoke remains in the chimney
Magne c 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 loca on and purpose?
Located between the firebox and flue collar.
Purpose is to complete beEer combus on
What does the barometric dra regulator do?
Prevents excessive dra
Smoke chamber height SHALL NOT be greater than the ______ ______ of the fireplace fire
chamber.
Inside width
Combus on needs...
Heat, Oxygen, and Fuel
Nominal dimensions can vary by how much?
Nominal dimensions vary by 1/2"
What is combus on?
The rapid oxida on of fuel producing heat and light.
RATED A+ | 2026
Dra is measured by...
inches in water column
Defini on of Dra
Difference of pressure INSIDE and OUTSIDE the ven ng system
Easiest solu on to "back puffing" stove?
Give it more air
What has the greatest effect on FLOW?
Size of ven ng 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 (Na onal Fuel Gas Code)
High efficiency gas + oil appliances generate a lot of____ which can____
water vapor, deteriorate a chimney quickly
Info on use and installa on of gas appliance dra hoods can be found where?
Na onal Fuel Gas Code
Category II, III, and IV appliance ven ng requirements can be found...
in the installa on instruc ons
Glazed creosote results from 3 things...
slow smoldering fire,
too many elbows,
improperly sized vent
What is "pyrolysis"?
The chemical altera on of wood as a result of the applica on of heat
, Perfect combus on results in:
Only Co2 and water vapor
Creosote forma on:
Tar fog or droplets of liquids condense in the ven ng system
Residence me
length of me smoke remains in the chimney
Magne c 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 loca on and purpose?
Located between the firebox and flue collar.
Purpose is to complete beEer combus on
What does the barometric dra regulator do?
Prevents excessive dra
Smoke chamber height SHALL NOT be greater than the ______ ______ of the fireplace fire
chamber.
Inside width
Combus on needs...
Heat, Oxygen, and Fuel
Nominal dimensions can vary by how much?
Nominal dimensions vary by 1/2"
What is combus on?
The rapid oxida on of fuel producing heat and light.
