CFM Corporation 2467 - Manual (Page 6)

6 6
Dutchwest Natural Vent Gas Heater
30002008
Venting Requirements and Options
The Dutchwest must be properly connected to a listed
4” (100mm) Type B venting system or to an approved
Class A masonry or factory-built chimney system. In
Canada, a complete relining of Class A chimney
systems is required.
The Dutchwest Natural Vent stove will accept decora-
tive 6” (150mm) stove pipe around the Type B venting
system, for aesthetic purposes.
Complete Type B vent systems are available from a
number of manufacturers, and your dealer can usually
supply one. Pipe sections from different makers are not
interchangeable; do not mix pipe or vent sections from
different makers. Follow the vent system
manufacturer’s instructions.
The vent system should conform to the specifications
of the National Fuel Gas Code, latest edition.
If connecting to a Class A chimney system, use 4”
(100mm) single wall or 4” Type B vent connector.
Single wall vent connector requires a minimum 6”
(150mm) clearance to combustible surfaces.
Exterior chimneys may be subject to flow reversal or
condensation. To lessen these conditions, enclose
Type B vents in an insulated chase, or reline exterior
Class A chimneys.
An approved pass-through device is always required,
whether the vent system passes through a wall or a
ceiling. Use a pass-through device from the same
maker who supplies the venting system.
Venting terminals shall not be recessed into a wall or
siding.
Vent Layout and Height Requirements
Venting for a Dutchwest can rise vertically through the
home, or can pass through an exterior wall and rise
along the outside of the home. Some codes require
that a Type B vent system rising on the outside of the
home be enclosed in a chase. Check your local codes
for requirements.
The minimum vent system height for the Dutchwest
Natural Vent Stove is 8’ (2.43m), (Fig. 7) measured
from the top of the stove. To determine the minimum
height the vent system must extend through or past the
roof, refer to the 1993 edition of the National Fuel Gas
Code.
Weight: Fully assembled 350 lbs.
Inlet Minimum 5.5” w.c. 11” w.c.
Inlet Maximum 14” w.c. 14” w.c.
Manifold Pressure 3.5” w.c. 10” w.c.
Gas Inlet and Manifold Pressures
Natural LP (Propane)
Dutchwest Natural Vent
Certified to:
ANSI Z21.86b-2001 / CSA Z2.33b-2001
Vented Gas Fireplace Heaters
The installation must conform with local codes or, in
the absence of local codes, with the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 - latest edition.
(EXCEPTION: Do not derate this appliance for
altitude. Maintain the manifold pressure at 3.5” w.c.
for Natural Gas and 10” w.c. for Propane.)
High Elevations
Input ratings are shown in BTU per hour and are
certified without deration for elevations up to
4,500 feet (1,370m) above sea level.
For elevations above 4,500 feet (1,370m) in USA,
installations must be in accordance with the
current ANSI Z223.1/NFPA 54 and/or local codes
having jurisdiction.
In Canada, please consult provincial and/or local
authorities having jurisdiction for installations at
elevations above 4,500 feet (1,370m).
Gas Specifications
Max. Min.
Input Input
Model Fuel Gas Control BTU/h BTU/h
2467 Nat Millivolt 28,000 20,000
2468 Prop Millivolt 28,000 19,000
WARNING: Improper installation, adjustment,
alteration, service or maintenance can cause
injury or property damage. Refer to this manual
for correct installation and operational proce-
dures. For assistance or additional information
consult a qualified installer, service agency, or
the gas supplier.