Hearthstone
Quality Home Heating Products, Inc
® Lima Model 8150
14
ensure
you
maintain
all
manufacturers’
recommendations for the proper clearances to the
chimney.
C
ONNECTION TO A
M
ASONRY
C
HIMNEY
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 only Code approved masonry
chimneys with an appropriate 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 repair, 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 cleanout is complete and
working properly. To avoid a loss of draft, the
cleanout door must close completely and provide a
tight seal. If the cleanout door leaks, the chimney will
cool, your stove will perform poorly, and creosote will
build up.
En
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 a maximum 8" x 8" (203 mm
x 203 mm) tile size for best results. An oversized flue
contributes to the accumulation of creosote.
Use the following checklist to ensure that your
masonry
chimney
meets
these
minimum
requirements:
Masonry Chimney wall construction:
Mortared brick or modular block at least 4" (102
mm) thick
A mortared rubble or stone wall
Flue liner options:
Tile - minimum wall thickness of 5/8" (16 mm)
Tile - installed with refractory mortar
Tile - at least 1" (25 mm) air space around liner
Stainless steel -
UL listed 6” diameter
Stainless steel - fill space around liner with
vermiculite (keeps liner warmer for better
performance)
Ensure an equivalent flue liner is a listed
chimney liner system meeting type HT
requirements or other approved material.
Interior chimney requirements:
At least 2" (51 mm) clearance to combustible
materials
Fire stops installed at the spaces where the
chimney passes through floors and/or ceiling
Any insulation is at least 2" (51 mm) from the
chimney
Exterior chimney requirements:
At least 1" (25 mm) clearance to combustible
materials
Chimney height requirements (See
Figure 10
below):
At least 3 feet (0.9 m) higher than the highest
part of the roof opening through which it passes.
At least 2 feet (0.6 m) higher than any part of the
roof within 10 feet (3 m) measured horizontally
from the top of the chimney.
This stove requires a minimum chimney height of 13
feet (4 m). The maximum recommended chimney
height is 30 feet (9m).
