HearthStone Homestead 8570F Owner's Manual page 30

Hearthstone Quality Home Heating Products, Inc.
described floor protection
installing into a zero clearance fireplace.
Connecting to a Prefabricated Metal
Chimney
When connecting the Homestead to a prefabricated
metal chimney, you must follow, precisely, the
manufacturer's installation instructions. Use only
type HT (2100° Fahrenheit) prefabricated metal
chimneys listed per UL 103 or ULC S629 standards.
WARNING: DO NOT CONNECT THE STOVE TO A
CHIMNEY FLUE SERVING ANOTHER APPLIANCE.
Ensure the size of the chimney's flue is appropriate
for the Homestead. The Homestead requires a 6"
(152 mm) inside diameter flue for new installations.
A 6" diameter flue provides adequate draft and
performance. You can use an 8" (203 mm) diameter
existing flue with a reducer. An oversized flue
contributes to creosote accumulation. (In this case,
bigger is not better.)
When purchasing a prefabricated chimney to install
with your stove, be sure to also purchase from the
same manufacturer the wall pass-through (or ceiling
support package), "T" section package, fire-stops
(when needed), insulation shield, roof flashing,
chimney cap, and any other needed accessories.
Follow the manufacturer's
installing the chimney and accessories. In addition,
be sure to maintain
recommendations for the proper clearances to the
chimney.
There are basically
prefabricated metal chimney:
An interior installation where the chimney
passes inside the residence through the ceiling
and roof.
An exterior installation where the chimney
passes through the wall behind the stove then
up the outside of the residence.
Whenever possible, choose an interior chimney. An
interior chimney heats up more quickly and retains
its heat; this both promotes a better draft and
discourages the formation of creosote. An exterior
chimney does not benefit from the warmth of being
surrounded by the building, so it typically operates at
lower flue temperatures than an interior chimney. An
exterior chimney's draft is not as strong and may
experience increased creosote accumulation.
®
requirements when
instructions when
all manufacturers'
two ways to install
Connecting to a Masonry Chimney
Consider two primary elements when connecting
your stove to a masonry chimney: the chimney itself
and the thimble where the stovepipe connects to the
chimney. Use
chimneys with a flue liner.
Before connecting to a masonry chimney, hire a
professional to examine the chimney for cracks,
loose mortar, and other signs of deterioration and
blockage. If the chimney needs repairs, complete
them before installing and using your stove. Do not
install your stove until the chimney is safe for use.
Make sure the chimney's clean-out is complete and
working properly. To avoid a loss in draft, the
clean-out must close off completely. If allowed to
cool, your stove will perform poorly and creosote will
build up in the chimney.
Make sure the size of the chimney's flue is
appropriate for this stove and that it is not too large.
Use a masonry chimney with an 8" x 8" (203 mm x
203 mm) tile size for best results. An oversize flue
contributes to the accumulation of creosote.
Use the following checklist to ensure that your
masonry chimney
requirements:
Chimney wall construction
Brick or modular block at least 4" (102 mm)
thick.
A rubble or stone wall at least 12" (305 mm)
thick.
a
Flue liner
Minimum thickness of 5/8" (16 mm).
Installed with refractory mortar.
At least 1" (25 mm) air space.
An equivalent flue liner must be a listed chimney
liner system meeting type HT requirements or
other approved material.
Interior chimney requirements
At least 2" (51 mm) clearance to combustible
structure.
Fire stops must be installed at the spaces where
the chimney passes through floors and the
ceiling.
Installation must be 2" (51 mm) from the
chimney.
30
Homestead Models #8570F and #8570H
only Code approved
meets these
masonry
minimum