Description/instructions – Fulton Classic ICX or FB-F Vertical Tubeless Boilers (Steam) Oil Fired User Manual

Page 25

Conventional Venting

a) The stack should rise continu-

ously to the connection with the

chimney, and should contain no

more than two bends at 45 angles

or less. If required as the result of

space limitations, one 90 elbow can

be fitted at the back of the boiler.

There should be two feet of straight,

horizontal flue before any bends or

turns. Any alternative stack arrange-

ment must supply -.02 -.04” W.C.

pressure (-0.508 to -1.016 mm) with

the burner off.

b) The total horizontal run of the

boiler stack should not exceed 25%

of the total vertical rise.

c). The stack and chimney material

shall comply with all local codes.

d) Adequate provision must be

made for the support of the

weight of the chimney and stack

to avoid having too great a load

imparted to the flue outlet con-

nection of the boiler.

e) The proper flue size and draft

control is most important for proper

burner operation. The flue must be

as large or larger than the outlet on

the boiler. Avoid flue piping and

elbows by placing the boiler as

close as possible to the chimney.

f) A mechanical draft regulator may

need to be installed in the flue

outlet. Do not install the draft regu-

lator prior to the first turn of the flue.

BHP

Boiler Flue Size

Inches

Millimeters

152

9.5

152

203

254

305

g) The installer should check the
draft with a meter at -.02 -.04” W.C.
pressure (-0.508 to -1.016 mm) with
the burner off, and -.04 to -.06” W.C.
pressure (-1.016 to -1.524 mm)
with the burner on.

Roof

Minimum

6' Above

Any Structure

Within 30'

Support As

Necessary

Install
Appropriate
Weather
Cap

Horizontal
Run 2'

Draft Regulator
(If Necessary)

Expansion Joints
As Required

Horizontal
Run 2'

Cleanout

Door

60°

(45° Min.)

Cleanout

Door

Cleanout

Door

This Distance
Must Not
Exceed 25%
Of Total Rise

Baffle

Stagger

Entrances

A-A

Total

Rise

30°

Max

Description/Instructions

17-O 4/00