CORE KNOWLEDGE REFERENCE
MANUAL TERMS QUESTIONS AND
CORRECT ANSWERS
AirA2InfiltrationA2-A2Ans--
Typically,A2theA2passingA2ofA2airA2intoA2theA2houseA2throughA2smallA2cracksA2orA2gapsA2inh
erentA2toA2theA2structure.A2AffectedA2byA2temperatureA2differenceA2betweenA2theA2insideA2
andA2outsideA2ofA2theA2structure,A2andA2pressureA2factorsA2(E.A2G.,A2Wind,A2TheA2operatio
nA2ofA2solidA2fuelA2appliancesA2orA2electricalA2appliancesA2suchA2asA2fans).
airA2inletA2-A2Ans--
TheA2designedA2portsA2ofA2entryA2forA2combustionA2airA2inA2aA2controlledA2combustion,A2s
olidA2fuelA2burningA2appliance.
AirA2inletA2controlA2-A2Ans--
TheA2meansA2byA2whichA2theA2amountA2ofA2airA2enteringA2theA2airA2inletA2isA2regulated.A2A
lsoA2referredA2toA2asA2airA2control.
airA2supplyA2-A2Ans--
Broadly,A2theA2airA2thatA2isA2suppliedA2toA2theA2fireboxA2ofA2theA2wood-burningA2appliance.
AirA2toA2fuelA2ratioA2-A2Ans--
TheA2ratioA2ofA2airA2inA2fuel,A2byA2weight,A2andA2aA2solidA2fuelA2appliance.A2ItA2shouldA2beA2
notedA2thatA21A2poundA2ofA2dryA2airA2occupiesA2aA2volumeA2ofA213.31A25A2ft.³A2atA270°F.A2T
herefore,A235A2poundsA2ofA2air,A2theA2typicalA2amountA2ofA2airA2necessaryA2toA2burnA21A2p
oundA2ofA2woodA2inA2theA2fireplace,A2occupiesA2466A2ft.³.
AldehydesA2-A2Ans--
ClassA2ofA2compoundsA2withA2distinctA2pungentA2odor,A2produceA2steeringA2inA2completeA
2combustionA2ofA2aA2fuelA2gas.
ANSIA2(AmericanA2NationalA2StandardsA2Institute)A2-A2Ans--
AmericanA2nationalA2standardsA2institute.A2TheA2coordinatingA2organizationA2forA2Federat
edA2nationalA2standardA2system,A2consistingA2ofA2900A2companiesA2inA2200A2trade,A2tech
nical,A2professional,A2labor,A2andA2consumerA2organizations.
applianceA2-A2Ans--AA2solidA2fuelA2burningA2product.
ApplianceA2regulatorA2-A2Ans--
TheA2applianceA2component,A2usuallyA2partA2ofA2theA2combustionA2valveA2thatA2maintains
A2constantA2gasA2pressure.
, ApplianceA2toA2fuelA2-A2Ans--
MeansA2ofA2ventingA2aA2solidA2fuelA2applianceA2(includingA2fireplaceA2inserts)A2intoA2Maso
naryA2fireplaceA2chimneys;A2TheA2stainlessA2steelA2connectorA2passesA2fromA2theA2applia
nceA2toA2theA2firstA2clayA2fuelA2liner.A2AlsoA2referredA2toA2asA2directA2connection.
approvedA2-A2Ans--AcceptableA2toA2theA2authorityA2havingA2jurisdiction.
AshA2-A2Ans--Non-combustibleA2solidA2byproductA2ofA2solidA2fuelA2combustion.
AuthorityA2HavingA2JurisdictionA2-A2Ans--
TheA2organization,A2office,A2orA2individualA2responsibleA2forA2"approving"A2equipment,A2in
stallation,A2orA2procedure.
AutomaticA2gasA2controlA2valveA2-A2Ans--
(AlsoA2combustionA2valve).A2GasA2valveA2whichA2combinesA2controlA2functions;A2usuallyA2
consistA2ofA2gasA2manualA2valveA2assembly;A2pilotA2safetyA2shutA2offA2system,A2diaphrag
mA2valve,A2gasA2pressureA2regulator,A2andA2valveA2operator.
baffleA2-A2Ans--
AnA2obstructingA2deviceA2orA2partitionA2inA2aA2solidA2fuelA2appliance,A2usedA2toA2directA2th
eA2flowA2ofA2gasesA2andA2heat.
blowerA2doorA2-A2Ans--
AA2diagnosticA2toolA2usedA2toA2measureA2theA2tightnessA2ofA2buildings.A2ConsistsA2ofA2aA2
calibratedA2fanA2forA2measuringA2airflowA2rateA2andA2aA2pressureA2sensingA2deviceA2toA2d
etermineA2houseA2pressureA2levels.
breachingA2-A2Ans--
RefersA2toA2theA2chimneyA2connectorA2accessA2holeA2inA2aA2MasonaryA2chimney.A2SeeA2c
himneyA2breaching.
BTUA2orA2BritishA2ThermalA2UnitA2-A2Ans--
AA2measureA2ofA2heatA2energy;A2theA2amountA2ofA2heatA2requiredA2toA2raiseA2theA2temper
atureA2ofA21A2poundA2ofA2waterA21°FA2atA2seaA2level.
BurnA2rateA2-A2Ans--
CombustionA2rate,A2usuallyA2expressedA2inA2poundsA2ofA2fuelA2consumedA2perA2hour.
ButaneA2-A2Ans--AA2colorless,A2odorless,A2non-
toxicA2gas;A2notA2generallyA2usedA2inA2hearthA2appliances.
BypassA2damperA2-A2Ans--
TermA2specificallyA2referringA2toA2theA2movableA2plateA2andA2someA2catalyticA2wood-
burningA2appliancesA2thatA2inA2oneA2positionA2channelsA2theA2fuelA2gasesA2throughA2theA2
catalyticA2combustor,A2andA2thenA2theA2otherA2positionA2channelA2isA2theA2smokeA2toA2byp
ass,A2orA2notA2goA2through,A2theA2catalyticA2combustor.A2OnA2someA2non-
MANUAL TERMS QUESTIONS AND
CORRECT ANSWERS
AirA2InfiltrationA2-A2Ans--
Typically,A2theA2passingA2ofA2airA2intoA2theA2houseA2throughA2smallA2cracksA2orA2gapsA2inh
erentA2toA2theA2structure.A2AffectedA2byA2temperatureA2differenceA2betweenA2theA2insideA2
andA2outsideA2ofA2theA2structure,A2andA2pressureA2factorsA2(E.A2G.,A2Wind,A2TheA2operatio
nA2ofA2solidA2fuelA2appliancesA2orA2electricalA2appliancesA2suchA2asA2fans).
airA2inletA2-A2Ans--
TheA2designedA2portsA2ofA2entryA2forA2combustionA2airA2inA2aA2controlledA2combustion,A2s
olidA2fuelA2burningA2appliance.
AirA2inletA2controlA2-A2Ans--
TheA2meansA2byA2whichA2theA2amountA2ofA2airA2enteringA2theA2airA2inletA2isA2regulated.A2A
lsoA2referredA2toA2asA2airA2control.
airA2supplyA2-A2Ans--
Broadly,A2theA2airA2thatA2isA2suppliedA2toA2theA2fireboxA2ofA2theA2wood-burningA2appliance.
AirA2toA2fuelA2ratioA2-A2Ans--
TheA2ratioA2ofA2airA2inA2fuel,A2byA2weight,A2andA2aA2solidA2fuelA2appliance.A2ItA2shouldA2beA2
notedA2thatA21A2poundA2ofA2dryA2airA2occupiesA2aA2volumeA2ofA213.31A25A2ft.³A2atA270°F.A2T
herefore,A235A2poundsA2ofA2air,A2theA2typicalA2amountA2ofA2airA2necessaryA2toA2burnA21A2p
oundA2ofA2woodA2inA2theA2fireplace,A2occupiesA2466A2ft.³.
AldehydesA2-A2Ans--
ClassA2ofA2compoundsA2withA2distinctA2pungentA2odor,A2produceA2steeringA2inA2completeA
2combustionA2ofA2aA2fuelA2gas.
ANSIA2(AmericanA2NationalA2StandardsA2Institute)A2-A2Ans--
AmericanA2nationalA2standardsA2institute.A2TheA2coordinatingA2organizationA2forA2Federat
edA2nationalA2standardA2system,A2consistingA2ofA2900A2companiesA2inA2200A2trade,A2tech
nical,A2professional,A2labor,A2andA2consumerA2organizations.
applianceA2-A2Ans--AA2solidA2fuelA2burningA2product.
ApplianceA2regulatorA2-A2Ans--
TheA2applianceA2component,A2usuallyA2partA2ofA2theA2combustionA2valveA2thatA2maintains
A2constantA2gasA2pressure.
, ApplianceA2toA2fuelA2-A2Ans--
MeansA2ofA2ventingA2aA2solidA2fuelA2applianceA2(includingA2fireplaceA2inserts)A2intoA2Maso
naryA2fireplaceA2chimneys;A2TheA2stainlessA2steelA2connectorA2passesA2fromA2theA2applia
nceA2toA2theA2firstA2clayA2fuelA2liner.A2AlsoA2referredA2toA2asA2directA2connection.
approvedA2-A2Ans--AcceptableA2toA2theA2authorityA2havingA2jurisdiction.
AshA2-A2Ans--Non-combustibleA2solidA2byproductA2ofA2solidA2fuelA2combustion.
AuthorityA2HavingA2JurisdictionA2-A2Ans--
TheA2organization,A2office,A2orA2individualA2responsibleA2forA2"approving"A2equipment,A2in
stallation,A2orA2procedure.
AutomaticA2gasA2controlA2valveA2-A2Ans--
(AlsoA2combustionA2valve).A2GasA2valveA2whichA2combinesA2controlA2functions;A2usuallyA2
consistA2ofA2gasA2manualA2valveA2assembly;A2pilotA2safetyA2shutA2offA2system,A2diaphrag
mA2valve,A2gasA2pressureA2regulator,A2andA2valveA2operator.
baffleA2-A2Ans--
AnA2obstructingA2deviceA2orA2partitionA2inA2aA2solidA2fuelA2appliance,A2usedA2toA2directA2th
eA2flowA2ofA2gasesA2andA2heat.
blowerA2doorA2-A2Ans--
AA2diagnosticA2toolA2usedA2toA2measureA2theA2tightnessA2ofA2buildings.A2ConsistsA2ofA2aA2
calibratedA2fanA2forA2measuringA2airflowA2rateA2andA2aA2pressureA2sensingA2deviceA2toA2d
etermineA2houseA2pressureA2levels.
breachingA2-A2Ans--
RefersA2toA2theA2chimneyA2connectorA2accessA2holeA2inA2aA2MasonaryA2chimney.A2SeeA2c
himneyA2breaching.
BTUA2orA2BritishA2ThermalA2UnitA2-A2Ans--
AA2measureA2ofA2heatA2energy;A2theA2amountA2ofA2heatA2requiredA2toA2raiseA2theA2temper
atureA2ofA21A2poundA2ofA2waterA21°FA2atA2seaA2level.
BurnA2rateA2-A2Ans--
CombustionA2rate,A2usuallyA2expressedA2inA2poundsA2ofA2fuelA2consumedA2perA2hour.
ButaneA2-A2Ans--AA2colorless,A2odorless,A2non-
toxicA2gas;A2notA2generallyA2usedA2inA2hearthA2appliances.
BypassA2damperA2-A2Ans--
TermA2specificallyA2referringA2toA2theA2movableA2plateA2andA2someA2catalyticA2wood-
burningA2appliancesA2thatA2inA2oneA2positionA2channelsA2theA2fuelA2gasesA2throughA2theA2
catalyticA2combustor,A2andA2thenA2theA2otherA2positionA2channelA2isA2theA2smokeA2toA2byp
ass,A2orA2notA2goA2through,A2theA2catalyticA2combustor.A2OnA2someA2non-