Yukon SUPER JACK SJ125, Owner'S Manual, Page: 31 / 52

Installation
TO FUNCTION PROPERLY AND SAFELY , it is impera-
tive that the draft control when installed in the Tee stub,
is pointing away from surrounding walls or obstructions.
(See Fig. 12) Placement of draft control pointing toward
nearby wall(s) or obstruction(s) could result in a hot spot
on the exposed surface and subsequent fire hazard.
REGARDLESS OF LOCATION AND POSITION , the
Tee stub opening MUST be plumb (perpendicular) for
the draft control to function properly.
AFTER THE TEE SECTION LOCATION HAS BEEN
DETERMINED , secure the section with both ends to
adjacent sections of standard smoke pipe. Three sheet
metal screws placed at equal distance around each end
of pipe will hold it firmly in place.
INITIAL SETTING OF BAROMETRIC CONTROL
Before adjusting the draft control, be sure there is a
good fire burning.
Set the control at a maximum of -.03 to -.04 or as low a
draft as will give good combustion and meet the require-
ments for heat. Turn adjustment weight counter-clock-
wise to loosen, then slide in slot to proper position and
tighten. Bracket is marked 2, 4, 6, and 8, which indicates
draft settings of .02, .04, etc. (These are draft in flue
adjacent to control, not over-fire drafts.) A manometer
must be used to accurately adjust flue draft.
SETTING THE DRAFT REGULATOR AND SOME INFORMATION ON CREOSOTE
CREOSOTE BUILD UP - Creosote, in a vaporized state,
is present in the gases emitted by burning wood and is
highly combustible in its solid and semi-liquid states.
Creosote may build up on the interior surface of the
chimney and subsequently reduce the draft opening. A
DANGEROUS CHIMNEY FIRE MAY RESULT IF ANY
APPRECIABLE CREOSOTE BUILD UP IS PERMIT-
TED.
ADVERSE CONDITIONS CONDUCIVE TO CREO-
SOTE BUILD UP - Creosote condenses from the flue
gases more rapidly when the temperature in the chim-
ney is cool. The amount of creosote build up is
dependent on:
Ÿ
The amount of moisture in the flue gases
Ÿ The temperature of the stack
Ÿ The rate at which the wood is burned
Ÿ
The amount of draft in the stack
Ÿ
How completely the combustible elements in the
flue gases have been burned in the combustion
chamber
Most problems with creosote are due to insufficiently dry
or cured wood, inadequate chimneys with low draft and
cold walls (below 250°F), and/or too low a rate of burn-
ing when little heat is required during spring and fall
months.
CONTROL OF CREOSOTE - Moisture in the flue
gases may be controlled by:
Ÿ Using properly seasoned fire wood
Ÿ
Mixing small pieces of air dried wood with every
load
Ÿ
Never using only large wood (usually less dry)
during mild weather when combustion is relatively
slow
The temperature in the stack may be controlled by:
Ÿ Using as short a length of stove pipe as possible
between the appliance and the chimney
Ÿ
Using an insulated (double wall) smoke pipe to
connect the appliance to the chimney
The amount of draft in the stack may be improved by:
Ÿ Having as few bends as possible
Ÿ
Insuring adequate chimney height and preventing
air leaks
Ÿ
Eliminating external obstructions in the chimney
outlet
Ÿ
Having only one appliance per flue (Code)
REMOVAL OF CREOSOTE - Accumulations of
creosote in smoke pipe and chimney flue should be
removed on a regular basis by dismantling and scraping
connector pipes and by scraping and brushing flue until
free of deposits. In many areas there are professional
chimney cleaning services available to perform this
cleaning operation.
31
FIG. 12