Quadra-Fire 7100FP-BK-B Installation Manual - page 13
C. Construct the Chase
Achaseisaverticalboxlikestructurebuilttoenclosethe
fireplaceand/oritsventsystem.Verticalchimneysthat
runontheoutsideofabuildingmustbeinstalledinsidea
chase.
Incoldclimates,Hearth&HomeTechnologiesrecom-
mendsthatthechasebewellinsulatedusingbatttype
insulationbetweenthejoists.
Constructionofthechasemayvarywiththetypeofbuild-
ing.Theseinstructionsarenotsubstitutesfortherequire-
mentsoflocalbuildingcodes.LocalbuildingcodesMUST
bechecked.
Chasesshouldbeconstructedinthemannerofalloutside
wallsofthehometopreventcoldairdraftingproblems.
Thechaseshouldnotbreaktheoutsidebuildingenvelope
inanymanner.Allouterwallsneedtobeinsulated.
Buildingcodesrequirefalseceilingandceilingfirestops/
atticshieldsateachfloorofthechaseorevery10ft(3048
mm)ofclearspacetocontrolspreadoffire.
Walls,ceiling,baseplateandcantileverflooratthefirst
levelofthechaseshouldbeinsulated(seeFigure3.4.)
Vaporandairinfiltrationbarriersshouldbeinstalledinthe
chaseasperregionalcodesfortherestofthehome.Ad-
ditionally,Hearth&HomeTechnologiesrecommendsthat
theinsidesurfacesbedrywalledandtaped(ortheuseof
anequivalentmethod)formaximumairtightness.
Holesandotheropeningsshouldbecaulkedwithhigh
temperaturecaulkorstuffedwithunfacedfiberglass
insulation.
Ceiling
Firestop
Metal Chase Top
Round Termination Cap
False Ceiling
Insulation in the
outside walls
of the chase
Attic
Insulation
Shield
Chimney
Ceiling
Firestop
Tabs
False Ceiling
False Ceiling
Insulation
Insulation
Storm Collar
Figure 3.4 Chase Assembly
1
2
3
All outside walls should be insulated.
Figure 3.5 Chase Constructions
1. Fireplaceandchimneyenclosedinanexteriorchase.
2. Chimneyoffsetthroughexteriorwallandenclosedinchase.
3. Chaseconstructedonroof.
• Thechaseisconstructedusingframingmaterialsmuch
thesameasthewallsinyourhome.Avarietyofsiding
materials may be used including brick, stone, veneer
brick,orstandardsidingmaterials.
• In constructing the chase, several factors must be
considered:
- Maintain a 2 in. (51 mm) air space around the
chimney.
- The chase top must be constructed of non-
combustiblematerial.
- Incoldclimates,afirestopspacerandatticinsulation
shieldshouldbeinstalledinaninsulatedfalseceiling
at the 8 ft. (2438 mm) level above the fireplace
assembly.Thisreducesheatlossthroughthechase.
- Incoldclimates,thewallsofthechaseshouldbe
insulatedtothelevelofthefalseceilingasshownin
Figure3.4.Thiswillhelpreduceheatlossfromthe
homearoundthefireplace.
ThreeexamplesofchaseapplicationsareshowninFig-
ure3.5.
WARNING! You must install false ceilings and ceil-
ing firestops at each floor of the chase or every 10 ft
(3.05 m) to control spread of fire.
WARNING! Risk of Fire! DO NOT sealareabetweenfire
stop opening and chimney pipe except where they enter
the attic or leave the warm air envelope of the home (use
600° F sealant).
WARNING! Risk of Fire!
You must maintain a minimum
2 in. (51 mm) air space clearance to insulation and other
materials surrounding the chimney system.
• Insulationandothermaterialsmustbefirmlysecuredto
prevent accidental contact with chimney system.
• Thechasemustbeproperlyblockedtopreventblown
insulation or other combustibles from entering and
makingcontactwithfireplaceorchimney.
• Failuretopreventcontactbetweeninsulationorother
materials and chimney system may cause overheating
andfire.
13
Quadra-Fire • 7100 FP • 433-3610 Installation Manual • Rev G • 5/27/14