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4
PITCH UP
21 mm/m (1/4" per linear foot)
BAROMETRIC DRAFT
REGULATOR
Drill 6 mm (1/4")
HOLE TO
MEASURE
DRAFT, SMOKE,
CO
and stack
2
temperature
229 mm (9")
MAINTAIN 0.5
MM (0.02")
W.C. DRAFT
(OVER-FIRE)
BAROMETRIC DRAFT REGULATOR
INSTALLED ON HORIZONTAL CONNECTION
B. Check chimney condition.
Existing chimneys and stacks may have deteriorated; without
repairs their use would be hazardous. Before connecting to an
old chimney or stack:
1. Clean it.
2. Inspect it thoroughly.
3. Remove obstructions.
4. Replace worn sections of metal stacks.
5. Seal bad masonry joints.
6. Repair damaged linings.
C. Where more than one appliance vents into a common chimney,
the area of the common Breaching should at least equal the
area of the largest appliance flue plus 50% of the additional flue
areas.
D. Breaching area must not be reduced at connection into chim-
ney. Breaching must be inserted into, but not beyond, inside of
chimney liner.
E. Chimney height shall extend at least 1 m (3 feet) above where it
passes through the roof of the building, and at least 0.5 m (2
feet) above any ridge within 3 m (10 feet) of the chimney.
457 mm
457 mm
(18")
(18")
MINIMUM
MINIMUM
BAROMETRIC DRAFT REGULATOR
INSTALLED ON VERTICAL RISE
PITCH UP
21 mm/m (1/4" per linear foot)
BAROMETRIC DRAFT
REGULATOR
DRILL 6 MM (1/4")
HOLE TO
MEASURE DRAFT,
SMOKE, CO
TEMPERATURE
229 mm (9")
MAINTAIN 0.5
MM (0.02")
W.C. DRAFT
(OVER-FIRE)
F. The use of a vent cap, where permitted by code, gives addition-
al protection against adverse wind conditions and precipitation.
G. Flue Connection: Connect flue pipe between top of boiler and
chimney. Horizontal sections of flue pipe must be pitched
upward to the chimney at least 21 mm/m (
must be inserted into, but not extend beyond, the inside wall of
the chimney flue. Install draft regulator in flue pipe, as shown in
figure 3.
AIR SUPPLY AND VENTILATION
(see CSA B139, latest edition, Section 7)
Sufficient air for combustion and ventilation in the boiler room
must be provided. Failure to do this will result in poor combus-
tion, heavy sooting and health hazards.
AND
2
STACK
Figure 3.
Barometric Draft
Regulator
Location
/
" per foot). Flue
1
4
TR Series
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