ACCURATE ANSWERS |LATEST VERSION 2026\27 |
COMPLETE |VERIFIED
Draft is measured by... -ACCURATE ANSWER inches in water column
Definition of Draft -ACCURATE ANSWER Difference of pressure INSIDE and
OUTSIDE the venting system
Easiest solution to "back puffing" stove? -ACCURATE ANSWER Give it more air
What has the greatest effect on FLOW? -ACCURATE 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? -ACCURATE ANSWER NFPA 54
(National Fuel Gas Code)
High efficiency gas + oil appliances generate a lot of____ which can____ -
ACCURATE ANSWER water vapor, deteriorate a chimney quickly
Info on use and installation of gas appliance draft hoods can be found where? -
ACCURATE ANSWER National Fuel Gas Code
Category II, III, and IV appliance venting requirements can be found... -
ACCURATE ANSWER in the installation instructions
,Glazed creosote results from 3 things... -ACCURATE ANSWER slow smoldering
fire,
too many elbows,
improperly sized vent
What is "pyrolysis"? -ACCURATE ANSWER The chemical alteration of wood as
a result of the application of heat
Perfect combustion results in: -ACCURATE ANSWER Only Co2 and water vapor
Creosote formation: -ACCURATE ANSWER Tar fog or droplets of liquids
condense in the venting system
Residence time -ACCURATE ANSWER length of time smoke remains in the
chimney
Magnetic thermometers only display about __% of actual flue temp -ACCURATE
ANSWER 50%
Creosote should be removed because... -ACCURATE ANSWER Fire risk,
corrosive to steel, connectors, and mortar
Why should flashing be embedded in mortar? -ACCURATE ANSWER prevent
leaks
, Baffle location and purpose? -ACCURATE ANSWER Located between the
firebox and flue collar.
Purpose is to complete better combustion
What does the barometric draft regulator do? -ACCURATE ANSWER Prevents
excessive draft
Smoke chamber height SHALL NOT be greater than the ______ ______ of the
fireplace fire chamber. -ACCURATE ANSWER Inside width
Combustion needs... -ACCURATE ANSWER Heat, Oxygen, and Fuel
Nominal dimensions can vary by how much? -ACCURATE ANSWER Nominal
dimensions vary by 1/2"
What is combustion? -ACCURATE ANSWER The rapid oxidation of fuel
producing heat and light.
Parging the smoke chamber improves FLOW by... -ACCURATE ANSWER
Reducing turbulence, and eliminating corbeling
Connector dampers should not block greater than ___% of the connector when
closed. -ACCURATE ANSWER 80%
Heat reclaimer / extractor -ACCURATE ANSWER Fits inline with connector, and
is NOT to be used with wood burning