Rinnai DIRECT VENT FIREPLACE RHFE-750ETRA User Manual

Page 20

Rinnai Corporation RHFE-750ETRA

Flue Manifold Installation

1. Disassemble the Flue Manifold

The flue consists of 3 parts:

• sleeve
• inside connection
• terminal

Disassemble the flue manifold by first pulling
out the inside connection. To remove the
outer terminal pull and release the two
internal ties and then pull out the outer
terminal.

Clearance to combustibles for the sleeve and
flanges is zero inches.

Drilling

Flue

and

Gas

Supply

Holes

Check for water and gas pipes as well as electric
cables. Use the template supplied to mark the wall
locations for the flue manifold and the gas supply.
Drill the flue hole using a 3 1/2 inch (90 mm) drill.

For weatherboard walls, drill through the center of the
weatherboard from the outside first and then through
the plasterboard.

Inside Connection

Sleeve

Terminal

Venting

There are 2 categories for venting:

I. Venting with Flue Manifolds FOT-203 or FOT-204 - horizontal venting directly through the wall with no

extensions.

II. Extended Venting - horizontal and vertical terminations with a maximum 33 feet and 3 elbows.

Venting with Flue Manifolds FOT-203 and FOT-204

The following flue manifold sizes are available:

Name Kit

No. fits

walls

Vent Kit A

FOT-203

4 1/3 - 9 1/2 inch

(110 - 240 mm)

Vent Kit B

FOT-204

9 1/2 - 15 3/4 inch

(240 - 400 mm)

FOT-203 /
FOT-204

Flue extensions are not authorized to be used with
the FOT-203 and FOT-204 manifolds.