Gas Specifications; Gas Inlet And Manifold Pressures; High Elevations; Venting Requirements - Vermont Castings Dutchwest 2467 Installation And Operating Manual

Dutchwest Natural Vent Gas Heater
Gas Specifications
Model Fuel Gas Control
2467 Nat
2468 Prop
Weight: Fully assembled 350 lbs.

Gas Inlet and Manifold Pressures

Inlet Minimum
Inlet Maximum
Manifold Pressure
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. (EXCEP-
TION: Do not derate this appliance for altitude. Main-
tain 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).
WARNING: Improper installation, adjustment,
alteration, service or maintenance can cause in-
jury or property damage. Refer to this manual for
correct installation and operational procedures.
For assistance or additional information consult
a qualified installer, service agency, or the gas
supplier.
6
Max.
Input Input
BTU/h BTU/h
Millivolt 28,000 20,000
Millivolt 28,000 19,000
Natural LP (Propane)
5.5" w.c. 11" w.c.
14" w.c. 14" w.c.
3.5" w.c. 10" w.c.
Venting Requirements and Options
Min. The Dutchwest must be properly connected to a listed
4" (102 mm) 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 sys-
tems 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 manufactur-
er'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" (102
mm) single wall or 4" Type B vent connector. Single wall
vent connector requires a minimum 6" (152 mm) clear-
ance 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' (2.43 m), (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.
30002008