Filter
Top Products
Regency U38 ULTIMATE Freestanding Gas Heater
7
INSTALLATION
VENTING
This heater is a vented appliance and must be
connected to a chimney/flue in accordance
with the installation codes.
Note: The rear pedestal cover plate is
only required when outside air is
being used. If using room air for
combustion, remove this plate
from the back of the pedestal.
For your safety this heater is equipped with a
vent safety switch designed to sense incor-
rect venting and react by shutting down the
gas supply. This thermally actuated switch is
located within the draft hood and will detect
either a blocked chimney or backdraft condi-
tion where the chimney flow has reversed. If
this switch shuts the unit down, it indicates a
drafting problem that must be identified and
rectified without delay - the thermally activated
switch must never be bypassed or discon-
nected as a hazardous or deadly condition can
result.
Venting Requirements
A four inch diameter vent is required. B-Vent,
Class A or Masonry with an approved liner are
all acceptable. For cosmetic or aesthetic pur-
poses 6" outer vent can be used as long as an
approved inner vent is installed. Fasten but do
not penetrate the inner sleeve of the B-Vent
when tightening the screw.
Follow all venting manufacturer’s requirements
and local building codes. In cold climates, we
recommend the use of insulated B-vent, chase,
and liners. For altitudes above 2000 ft. we
recommend that a minimum flue height of 12 ft.
is used.
Flue Mounting Bracket
Attach the flue mounting bracket with the
enclosed screw as shown in the diagram.
DRAFT HOOD
This heater has a draft hood built in. It must not
be altered, obstructed, or blocked in any way,
and the unit must be installed so that the draft
hood is in the same atmospheric pressure zone
as the combustion air inlet to the burner. This
heater must be properly connected to a venting
system. This heater is equipped with a vent
safety shutoff system.
WARNING: Operation of this heater when
not connected to a properly installed and
maintained venting system or tampering
with the vent safety shutoff system can
result in carbon monoxide (CO) poison-
ing and possible death.
HIGH ELEVATION
The U38 (with 40,000 BTU rating) is approved
in Canada for altitude 2000 ft. to 4500 ft. (CAN/
CGA-2.17-M91) with the orifice kit (Part # 591-
975). For Natural Gas installations above 4500
ft. follow current CAN/CGA-B149.1.
In U.S.A., for installations above 2000 ft. refer
to current ANSI Z223.1 Sc8-8.1.2a appendix F,
for resizing orifice.
Vent Terminations
Installation into Existing
Woodstove Flue System
1) Clean existing Chimney system.
2) Run an approved 4" flex liner or "B" vent into
existing chimney.
Note:
See the chimney systems
manufacturer for detailed
installation instructions.