Schwank compactSchwank P40-R Installation & Owner's Manual page 21

H
ORIZONTAL VENT THROUGH A SIDE WALL

Refer to General Venting Requirements on page 19

Minimum length of a horizontal side-wall vent:

Regardless if a 90° elbow is installed, a Minimum linear 36 inch (3 ft; 91 cm) single
wall 'C' vent plus minimum 12 inch (30.5 cm) double wall 'B' vent through wall

Total minimum linear vent length of 48 inches (4 ft; 122 cm)

Maximum length of a horizontal side-wall vent:

Total Maximum vent length is 15 ft (4.6 m)

Each 90° or 45° elbow is equivalent to 5 ft

A minimum 12 inch (30.5 cm) double wall 'B' vent must be used through the wall

The flue vent system must slope downwards approximately 1/4" per foot (63 mm / 300 mm)
toward the vent terminal, from the termination of the tube - radiant tube must be level.

A maximum of two elbows (90° or 45°; each = equivalent 5 ft) can be installed in a horizon-
tal vent
For side wall venting use either Schwank/InfraSave 4" (10 cm) horizontal vent terminal (Part

Number: JA-0528-XX - available as an option) or an approved 4" (10 cm) "High Wind" vent
termination cap (see clearance information previous page and next page)

Install the termination cap a minimum of 6 inches (15 cm) from the outside wall to the inside
edge of terminal opening to minimize back pressure caused by turbulent wind conditions
(See Fig. 9 above). This also ensures flue gases are directed away from the structure to
help protect building materials from degradation by the exhausted flue gases.

The vent must be installed to prevent blockage by snow, undue wind pressure on the termi-
nation, and to protect building materials from degradation by flue gases.
Clearances Required for Horizontal Side Wall Vent :

Refer to Figure 9 above, and in particular to Figure 11 and Table 3 next page for specific
requirements of codes in the USA and Canada

Any values not listed in Table 3 shall be in accordance with local installation codes and the
requirements of the gas supplier
Footnotes for Table 3 (next page)
1
Installations in Canada in accordance with current CSA B149.1, Natural Gas and Propane
installation Code
2
Installations in the USA in accordance with the current ANSI Z223.1 / NFPA 54, National
Fuel Gas Code
† A vent shall not terminate directly above a sidewalk or paved driveway that is located be-
tween two single family dwellings and serves both dwellings
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides
beneath the floor
** Clearance in accordance with local installation codes and the requirements of the gas sup-
plier.
: (Vertical vent through roof is on page 23)
21
P40-R I&O Manual
IM120801
RD: AUG 2013
RL: 1D