CSIA Certification
Questions and Answers
Updated 2027
DraftBisBmeasuredBby...B-BAnswerBinchesBinBwaterBcolumn
DefinitionBofBDraftB-
BAnswerBDifferenceBofBpressureBINSIDEBandBOUTSIDEBtheBventingBsystem
EasiestBsolutionBtoB"backBpuffing"Bstove?B-BAnswerBGiveBitBmoreBair
WhatBhasBtheBgreatestBeffectBonBFLOW?B-
BAnswerBSizeBofBventingBsystemBpassageway
ABmasonryBchimneyBisBrequiredBbyBwhatBtoBhaveBaBcleanoutBifBtheBflueBpreviouslyB
ventedBaBsolidBorBliquidBfuelBappliance?B-
BAnswerBNFPAB54B(NationalBFuelBGasBCode)
HighBefficiencyBgasB+BoilBappliancesBgenerateBaBlotBof____BwhichBcan____B-
BAnswerBwaterBvapor,BdeteriorateBaBchimneyBquickly
InfoBonBuseBandBinstallationBofBgasBapplianceBdraftBhoodsBcanBbeBfoundBwhere?B-
BAnswerBNationalBFuelBGasBCode
CategoryBII,BIII,BandBIVBapplianceBventingBrequirementsBcanBbeBfound...B-
BAnswerBinBtheBinstallationBinstructions
GlazedBcreosoteBresultsBfromB3Bthings...B-BAnswerBslowBsmolderingBfire,
tooBmanyBelbows,
,improperlyBsizedBvent
WhatBisB"pyrolysis"?B-
BAnswerBTheBchemicalBalterationBofBwoodBasBaBresultBofBtheBapplicationBofBheat
PerfectBcombustionBresultsBin:B-BAnswerBOnlyBCo2BandBwaterBvapor
CreosoteBformation:B-
BAnswerBTarBfogBorBdropletsBofBliquidsBcondenseBinBtheBventingBsystem
ResidenceBtimeB-BAnswerBlengthBofBtimeBsmokeBremainsBinBtheBchimney
MagneticBthermometersBonlyBdisplayBaboutB__%BofBactualBflueBtempB-BAnswerB50%
CreosoteBshouldBbeBremovedBbecause...B-BAnswerBFireBrisk,
corrosiveBtoBsteel,Bconnectors,BandBmortar
WhyBshouldBflashingBbeBembeddedBinBmortar?B-BAnswerBpreventBleaks
BaffleBlocationBandBpurpose?B-BAnswerBLocatedBbetweenBtheBfireboxBandBflueBcollar.
PurposeBisBtoBcompleteBbetterBcombustion
WhatBdoesBtheBbarometricBdraftBregulatorBdo?B-BAnswerBPreventsBexcessiveBdraft
SmokeBchamberBheightBSHALLBNOTBbeBgreaterBthanBtheB______B______BofBtheBfirep
laceBfireBchamber.B-BAnswerBInsideBwidth
CombustionBneeds...B-BAnswerBHeat,BOxygen,BandBFuel
, NominalBdimensionsBcanBvaryBbyBhowBmuch?B-
BAnswerBNominalBdimensionsBvaryBbyB1/2"
WhatBisBcombustion?B-
BAnswerBTheBrapidBoxidationBofBfuelBproducingBheatBandBlight.
PargingBtheBsmokeBchamberBimprovesBFLOWBby...B-
BAnswerBReducingBturbulence,BandBeliminatingBcorbeling
ConnectorBdampersBshouldBnotBblockBgreaterBthanB___%BofBtheBconnectorBwhenBclo
sed.B-BAnswerB80%
HeatBreclaimerB/BextractorB-
BAnswerBFitsBinlineBwithBconnector,BandBisBNOTBtoBbeBusedBwithBwoodBburning
WhatBinspectionBlevelBdeterminesBifBaBwallBpass-throughBisBinstalledBproperly?B-
BAnswerBLevelB2
HearthBstoveBshouldBonlyBbeBconnectedBto...B-
BAnswerBABproperlyBbuiltBmasonryBfireplace
WhatBproblemsBareBcreatedBwhenBmortarBjointsBbetweenBflueBtilesBareBnotBsmoothe
d?B-BAnswerBMayBcreateBturbulenceBandBincreasedBresidenceBtimeBofBexhaust.
3BPositiveBaspectsBofBCast-in-PlaceBlinersB-
BAnswerB1.BaddsBstructuralBintegrityBtoBchimney
2.BresistsBcorrosiveBdeposits
3.BableBtoBsupportBanyBfuelBorBapplianceBwhenBsizedBproperly
Questions and Answers
Updated 2027
DraftBisBmeasuredBby...B-BAnswerBinchesBinBwaterBcolumn
DefinitionBofBDraftB-
BAnswerBDifferenceBofBpressureBINSIDEBandBOUTSIDEBtheBventingBsystem
EasiestBsolutionBtoB"backBpuffing"Bstove?B-BAnswerBGiveBitBmoreBair
WhatBhasBtheBgreatestBeffectBonBFLOW?B-
BAnswerBSizeBofBventingBsystemBpassageway
ABmasonryBchimneyBisBrequiredBbyBwhatBtoBhaveBaBcleanoutBifBtheBflueBpreviouslyB
ventedBaBsolidBorBliquidBfuelBappliance?B-
BAnswerBNFPAB54B(NationalBFuelBGasBCode)
HighBefficiencyBgasB+BoilBappliancesBgenerateBaBlotBof____BwhichBcan____B-
BAnswerBwaterBvapor,BdeteriorateBaBchimneyBquickly
InfoBonBuseBandBinstallationBofBgasBapplianceBdraftBhoodsBcanBbeBfoundBwhere?B-
BAnswerBNationalBFuelBGasBCode
CategoryBII,BIII,BandBIVBapplianceBventingBrequirementsBcanBbeBfound...B-
BAnswerBinBtheBinstallationBinstructions
GlazedBcreosoteBresultsBfromB3Bthings...B-BAnswerBslowBsmolderingBfire,
tooBmanyBelbows,
,improperlyBsizedBvent
WhatBisB"pyrolysis"?B-
BAnswerBTheBchemicalBalterationBofBwoodBasBaBresultBofBtheBapplicationBofBheat
PerfectBcombustionBresultsBin:B-BAnswerBOnlyBCo2BandBwaterBvapor
CreosoteBformation:B-
BAnswerBTarBfogBorBdropletsBofBliquidsBcondenseBinBtheBventingBsystem
ResidenceBtimeB-BAnswerBlengthBofBtimeBsmokeBremainsBinBtheBchimney
MagneticBthermometersBonlyBdisplayBaboutB__%BofBactualBflueBtempB-BAnswerB50%
CreosoteBshouldBbeBremovedBbecause...B-BAnswerBFireBrisk,
corrosiveBtoBsteel,Bconnectors,BandBmortar
WhyBshouldBflashingBbeBembeddedBinBmortar?B-BAnswerBpreventBleaks
BaffleBlocationBandBpurpose?B-BAnswerBLocatedBbetweenBtheBfireboxBandBflueBcollar.
PurposeBisBtoBcompleteBbetterBcombustion
WhatBdoesBtheBbarometricBdraftBregulatorBdo?B-BAnswerBPreventsBexcessiveBdraft
SmokeBchamberBheightBSHALLBNOTBbeBgreaterBthanBtheB______B______BofBtheBfirep
laceBfireBchamber.B-BAnswerBInsideBwidth
CombustionBneeds...B-BAnswerBHeat,BOxygen,BandBFuel
, NominalBdimensionsBcanBvaryBbyBhowBmuch?B-
BAnswerBNominalBdimensionsBvaryBbyB1/2"
WhatBisBcombustion?B-
BAnswerBTheBrapidBoxidationBofBfuelBproducingBheatBandBlight.
PargingBtheBsmokeBchamberBimprovesBFLOWBby...B-
BAnswerBReducingBturbulence,BandBeliminatingBcorbeling
ConnectorBdampersBshouldBnotBblockBgreaterBthanB___%BofBtheBconnectorBwhenBclo
sed.B-BAnswerB80%
HeatBreclaimerB/BextractorB-
BAnswerBFitsBinlineBwithBconnector,BandBisBNOTBtoBbeBusedBwithBwoodBburning
WhatBinspectionBlevelBdeterminesBifBaBwallBpass-throughBisBinstalledBproperly?B-
BAnswerBLevelB2
HearthBstoveBshouldBonlyBbeBconnectedBto...B-
BAnswerBABproperlyBbuiltBmasonryBfireplace
WhatBproblemsBareBcreatedBwhenBmortarBjointsBbetweenBflueBtilesBareBnotBsmoothe
d?B-BAnswerBMayBcreateBturbulenceBandBincreasedBresidenceBtimeBofBexhaust.
3BPositiveBaspectsBofBCast-in-PlaceBlinersB-
BAnswerB1.BaddsBstructuralBintegrityBtoBchimney
2.BresistsBcorrosiveBdeposits
3.BableBtoBsupportBanyBfuelBorBapplianceBwhenBsizedBproperly