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Hampton®H15E-11DirectVentFreestandingGasStove
installation
Offset Chart
Diagram 12
7) Ensureventisverticalandsecurethebase
oftheflashingtotheroofwithroofingrails,
slidestormcollaroverthepipesectionand
sealwithamastic.
8) Installtheverticalterminationcapbytwist
lockingit.
Notes:
a)
For multistorey vertical installations,
a Ceiling Fire stop is required at the
secondfloor,andanysubsequentfloor.
Diagram 12. The opening should be
framedto10"x10"insidedimensions,
inthesamemannerasshownindiagram
9.
b) Anyoccupiedareasabovethefirstfloor,
includingclosetsandstoragespaces,
throughwhichtheverticalventpasses,
mustbeenclosed.
Diagram 11
Diagram 8
3) ToinstalltheRoundSupportBox/WallThimble
inaflatceiling,cuta10inchsquareholein
theceilingcentredontheholedrilledinStep
2.Frametheholeasshownindiagram9.
Note: For best results and optimum perfor-
mance with each approved venting sys-
tem, it is highly recommended to apply
“Mill-Pac” sealant (supplied) to every
inner pipe connection. Failure to do so
may result in drafting or performance
issues not covered under warranty.
4) Assemblethedesiredlengthsofblackpipeand
elbowsnecessarytoreachfromtheappliance
adapter up though the Round Support Box.
Insure that all pipes and elbow connections
areinthefullytwist-lockedpositionandsealed.
Diagram 10: The upper half of the flashing is
installed under the roofing material and not
nailed down until the chimney is installed.
This allows for small adjustments.
Note: If an offset is necessary in the attic
to avoid obstructions, it is important
to support the vent pipe every 3 feet,
to avoid excessive stress on the el-
bows, and possible separation. Wall
straps are available for this purpose.
See diagram 5.
Galvanizedpipeandelbowsmaybeutilized
intheatticaswellasabovetheroofline.
The galvanized finish is desirable above
the roofline due to its higher corrosion
resistance.
Continuetoaddpipesectionsthroughthe
flashing until the height of the vent cap
meetstheminimumheightrequirements
specified in diagram 11 or local codes.
Notethatforsteeproofpitches,thevertical
heightmustbeincreased.Apoordraft,or
down drafting can result from high wind
conditionsnearbigtreesoradjoiningroof
lines,inthesecases,increasingthevent
heightmaysolvetheproblem.
5) Cut a hole in the roof centred on the small
drilledholeplacedintheroofinStep2.Thehole
shouldbeofsufficientsizetomeettheminimum
requirements for clearance to combustibles
of1-1/4".Sliptheflashingundertheshingles
(shinglesshouldoverlaphalftheflashing)as
perdiagram10.
6) Continuetoassemblepipelengths.
Diagram 9
RoofPitch
MinimumVentHeight
Feet
Meters
flatto7/12
2
0.61
over7/12to8/12
2
0.61
over8/12to9/12
2
0.61
over9/12to10/12
2.5
0.76
over10/12to11/12
3.25
0.99
over11/12to12/12
4
1.22
over12/12to14/12
5
1.52
over14/12to16/12
6
1.83
over16/12to18/12
7
2.13
over18/12to20/12
7.5
2.29
over20/12to21/12
8
2.44
