Chimney Draft; Importance Of Proper Draft - Breckwell SW1.8 Owner’s Instruction And Operation Manual

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INSTALLATION
1. Clean the fireplace opening properly disposing of
any ashes in a closed metal container. See Safety
Instructions.
2. Install a 6" (153 mm) minimum diameter, continuous
stainless steel chimney liner into the existing chimney.
The liner must extend to the top of the existing chimney.
Use only listed chimney liners that meet UL 1777(US) or
ULC S635 (Canada).
3. Remove or lock the fireplace damper in the open
position. Note: Masonry or damper plate may be
removed to accommodate the chimney liner provided
this does not weaken any structural components of the
existing fireplace or chimney nor reduces protection
of combustible materials required by national building
codes. Consult with your local building or fire authority
before doing this.
4. Uncrate the appliance, remove all packing materials,
and any items stored in the firebox.
5. WARNING: Any fireplace which has had parts removed
or modified to accommodate the installation of this
appliance MUST have a warning plate permanently
installed in a visible location stating that the fireplace is
unfit for use with solid fuel. This unit came with a metal
warning label. Permanently attach the warning plate
to a visible location in the fireplace. After choosing
a visible location in the fireplace, permanently attach
the warning plate by screwing or nailing it into place.
Note: Use the holes in the label to mark and predrill the
holes needed for attaching the label.
6. Position the appliance into the fireplace opening until
the top lip of the air jacket is flush with the fireplace
facing.
7. Level the appliance with the adjusting screws at the rear
of the appliance.
8. Connect the chimney liner to the appliance using a
stainless steel adapter and securing with a minimum of
three (3) sheet metal screws. The liner MUST be attached
with the male (or crimped) end of the adapter inside the
flue collar of the appliance to allow condensation and/
or creosote to drain back into the firebox.
This appliance must be connected to a listed Stainless Steel
Liner, that meets UL1777, which extends from the collar to
the chimney cap according to the specifications listed on the
previous pages. Take into account the chimney's location to
ensure it is not too close to neighbors or in a valley which
may cause unhealthy or nuisance conditions.

CHIMNEY DRAFT

NOTE: A DRAFT READING OF 0.05[12.45] to 0.06[14.94]
(Water Column[Pascals]) IS REQUIRED FOR PROPER
BURNING OF THIS APPLIANCE.
Draft is a function of the chimney, NOT THE APPLIANCE —
Do not expect the appliance to draw. Smoke spillage into the
house or excess buildup of condensation or creosote in the
chimney are warnings that the chimney is NOT functioning
properly. Correct the problem before using the appliance.
Following are some possible causes for improper draft.
1. The connector pipe may be pushed into the chimney
too far, stopping the draft.
2. If the chimney is operating too cool, water will condense
in the chimney and run back into the appliance. Creosote
formation will be rapid and may block the chimney.
Operate the appliance at a fire level high enough to
keep the chimney warm preventing this condensation.
3. If the fire burns well but sometimes creates excessive
smoke or burns slowly, it may be caused by the
chimney top being lower than another part of the house
or a nearby tree. The wind blowing over a house or
tree falls on top of the chimney like water over a dam,
beating down the smoke. The top of the chimney should
be at least three (3) feet above the roof and be at least
two (2) feet higher than any point of the roof within ten
(10) feet.

IMPORTANCE OF PROPER DRAFT

Draft is the force which moves air from the appliance up
through the chimney. The amount of draft in your chimney
depends on the length of the chimney, local geography,
nearby obstructions and other factors. Too much draft may
cause excessive temperatures in the appliance. Inadequate
draft may cause backpuffing into the room and "plugging"
of the chimney. Inadequate draft will cause the appliance to
leak smoke into the room through appliance and chimney
connector joints. An uncontrollable burn or excessive
temperature indicates excessive draft.
-7-
© 2024 Breckwell Hearth

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