Installation Manual

HE Series Infrared Gas Heater Installation and Operation Manual

: (Vertical vent through roof is on page 23)

• 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 Rinnai 4” (10 cm) horizontal vent terminal (Part Number:

902000002 - 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

• 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)



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.