Osburn WESTBAY 38 User manual

45124A
WESTBAY 38
FREESTANDING STOVE
OWNER`S MANUAL
WARNING: If the information in these
instructions is not followed exactly, a fire or
explosion may result causing property
damage, personal injury or death.
FOR YOUR SAFETY: Do not store or use
gasoline or other flammable vapors and
liquids in the vicinity of this or any other
appliance.
Installation and service must be
performed by a qualified installer, service
agency or the gas supplier.
WHAT TO DO IF YOU SMELL GAS:
•Do not try to light any appliance.
•Do not touch any electric switch; do not
use any phone in your building.
•Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier’s instructions.
•If you cannot reach your gas
supplier, call the fire department.
THE INSTALLATION MUST BE IN ACCORDANCE WITH LOCAL CODES OR, IN
THE ABSENCE OF LOCAL CODES, WITH THE CURRENT NATIONAL FUEL GAS
CODE ANSI Z233.1 (USA) OR THE CURRENT CAN/CGA B149.1-M86
INSTALLATION CODES (CANADA).

2
TABLE OF CONTENTS
1.0 INTRODUCTION................................................................................................................................... 3
1.1 SPECIFICATIONS ....................................................................................................................3
1.2 FEATURES .............................................................................................................................5
1.3 INTENDED USE ......................................................................................................................5
1.4 GENERAL SAFETY .................................................................................................................5
2.0 OPERATION........................................................................................................................................ 6
2.1 OPERATION SAFETY ..............................................................................................................6
2.2 LIGHTING INSTRUCTIONS ......................................................................................................7
2.3 HEAT OUTPUT ADJUSTMENT................................................................................................9
3.0 INSTALLATION................................................................................................................................. 9
3.1 INSTALLATION &SAFETY NOTES..........................................................................................9
3.2 UNPACKING...........................................................................................................................9
3.3 INSTALLATION.......................................................................................................................9
3.3.1 MINIMUM CLEARANCES ..................................................................................................10
3.3.2 GAS LINE INSTALLATION.................................................................................................11
3.3.3 THERMOSTAT OR WALL SWITCH INSTALLATION .............................................................11
3.3.4 DIRECT VENT INFORMATION ...........................................................................................13
3.3.4.1 TOP /REAR VENT CONFIGURATION ...............................................................................16
3.3.4.2 USE OF SEALANT.........................................................................................................17
3.3.4.3 VENT RESTRICTOR INSTALLATION ...............................................................................17
3.3.5 OPTIONAL B-VENT INSTALLATION.......................................................................21
3.3.6 FIREBOX COMPONENT INSTALLATION ...............................................................21
3.3.7 INSTALLING THE DOOR....................................................................................................23
3.3.8 INITIAL FIRING.................................................................................................................23
3.3.8.1 MANIFOLD PRESSURE REGULATOR ADJUSTMENT........................................................24
3.3.8.2 PILOT FLAME ADJUSTMENT .........................................................................................24
3.3.8.3 PRIMARY AIR ADJUSTMENT .........................................................................................25
3.3.8.4 ALTITUDE ADJUSTMENT...............................................................................................25
4.0 MAINTENANCE............................................................................................................................... 26
4.1 MAINTENANCE SAFETY.......................................................................................................26
4.2 RECOMMENDED SERVICE....................................................................................................26
4.3 GLASS CLEANING................................................................................................................26
4.4 CLEANING OF GOLD PLATED SURFACES.............................................................................27
4.5 BURNER &PILOT CLEANING...............................................................................................27
4.6 OPTIONAL FAN INSTALLATION............................................................................................27
5.0 TROUBLE SHOOTING................................................................................................................. 28
LIMITED WARRANTY............................................................................................................................. 29

3
1.0 INTRODUCTION
1.1 Specifications
ITEM NATURAL GAS (NG) PROPANE (LPG)
INPUT: Hi 38,000 Btu/hr (11.13 kW) 38,000 Btu/hr (11.13 kW)
INPUT: Lo 19,000 Btu/hr (5.57 kW) 27,000 Btu/hr (7.91kW)
MANIFOLD PRESSURE: Hi 3.5” w.c. (0.87kPa) 10.5” w.c. (2.62kPa)
MANIFOLD PRESSURE: Lo 0.9” w.c. (0.22kPa) 5.5” w.c. (1.37kPa)
GAS INLET SUPPLY PRESSURE: Minimum: 5.0” w.c. (1.2 kPa) Minimum: 11.5” w.c. (2.9 kPa)
Normal: 7.0” w.c. (1.7 kPa) Normal: 13.5” w.c. (3.4 kPa)
Maximum: 13.5” w.c. (3.4 kPa) Maximum: 13.5” w.c. (3.4 kPa)
ORIFICE SIZE: @ 0-4500’ Elavation # 31 DMS # 49 DMS
PRIMARY AIR ADJUSTMENT 1/4” Full Open
CONTROL VALVE TYPE: Honeywell Honeywell
SHIPPING WEIGHT: 200 lb. (90 kg) 200 lb. (90 kg)
VENTING Simpson Dura-Vent
Security Chimneys International
(Secure Vent)
Selkirk (Direct-Temp)
Simpson Dura-Vent
Security Chimneys International
(Secure Vent)
Selkirk (Direct-Temp)
FAN * Optional * Variable Speed (110 Volt) Variable Speed (110 Volt)
Table 1

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APPLIANCE DIMENSIONS
Figure 1
INSTALLATION CODES
Installation must conform to local codes. In the absence of local codes, installation must conform to
the National Fuel Gas Code, ANSI Z233.1 1988, (in the U.S.), or with the current installation code
CAN/CGA B149.1 – M86 (in Canada). The heater, when installed, must be electrically grounded in
accordance with ANSI/NFPA No. 70-1990 (in the U.S.) or with the current CSA C22.1(in Canada). In
the state of Massachusetts, this product can only be installed by a licensed plumber or a licensed gas
fitter. Failure to comply will void the warranty.

5
1.2 Features
Ignition system:
Standing pilot ignition system with thermopile, thermocouple flame detection and piezo igniter.
Gas control:
Gas control valve type:
Automatic milivolt powered combination gas control valve with variable flame control for convenience
and on/off switch. Optional remote on/off wall switch, optional wall thermostat, and/or optional
wireless remote control are available. The gas valve does not require electricity from an external
source.
Safety controls: (Direct-Vent model)
A safety device will shut the system down in the event of any one of the following conditions:
Incorrectly installed vent system, blocked vent or if pilot flame goes out.
Safety controls: (B-Vent model)
A safety device will shut the system down in the event of any one of the following conditions:
Incorrectly installed vent system, blocked vent causing flue spillage or flow reversal or sustained
down draft situation.
1.3 Intended Use
This appliance is intended to be used as a free standing heater. In Massachusetts the Westbay 38
may be installed in a bedroom only when used as a direct vent unit (sealed combustion), no b-vent
installation in bedroom or bathroom is allowed. For other states or provinces may be installed in a
bedroom provided that CR89-00 and/or ANSI A225.1/NFPA 501A standards are followed, all required
clearances are met, a wall thermostat is installed and where the maximum input is within 50 cubic
feet of room volume per 1000 BTU/hr, (i.e.1500 minimum cubic feet) and the stove must be hooked
up to a Simpson Dura Vent GS direct venting system, Security Chimneys International (Secure
Vent) or Selkirk (Direct-Temp).
1.4 General Safety
The appliance must be properly connected to a venting system in accordance with local codes. This
unit must not be connected to a chimney or flue serving any other appliance. It is equipped with a
safety control system to protect against improper venting of flue products.
WARNING: Operation of this unit when not connected to a properly installed and
maintained venting system may result in carbon monoxide poisoning.
Installation and repair should be done by a qualified service person. The appliance should be
inspected before use and at least annually by a professional service technician. Provide adequate
clearances around air openings, for combustion and ventilation air, and allow accessibility clearance
for servicing and proper operation. Do not use this heater if any part has been under water.
Immediately call a qualified service technician to inspect the heater and replace any part of the
control system and any gas control which has been under water.

6
2.0 OPERATION
2.1 Operation Safety
Inspect the appliance before use. Always keep the appliance area clear and free from combustible
materials, gasoline, and other flammable vapors and liquids. Never obstruct the flow of ventilation air.
Keep the front of the appliance clear of all obstacles and foreign materials. Never obstruct or modify
the air inlet/outlet grilles of the fireplace in any manner.
CAUTION: Children and adults should be alerted to the hazards of high surface
temperature and should stay away to avoid burns or contact with hot surfaces.
Young children should be carefully supervised when they are in the same room as
the heater. Clothing or other flammable material should not be placed on or near the
unit.
The glass door and top grille must be properly installed prior to operation. Never operate the unit
with the glass door off or broken since this may cause dangerous indoor air pollution. This unit is not
for use with solid fuel. Do not substitute any parts or materials. Do not abuse the glass door by
striking or slamming shut.
Figure 2
Igniter
On / Off
Fan Control

7
2.2 Lighting Instructions
FOR YOUR SAFETY, READ BEFORE LIGHTING
WARNING: If you do not follow these instructions exactly, a fire or explosion may
result causing property damage, personal injury or loss of life.
A. This appliance is provided with a standing pilot flame. When lighting the pilot, follow these
instructions exactly.
B. BEFORE LIGHTING: smell all around the appliance area for gas. Be sure to smell next to the
floor because some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch: do not use any phone in your home.
Immediately call your gas supplier from a neighbor’s phone. Follow the gas suppliers’ instructions.
If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not
push in or turn by hand, do not try to force or repair it; call a qualified service technician. Forcing or
attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water. Immediately call a qualified service
technician to inspect the appliance and to replace any part of the control system and any gas control
which has been under water.
LIGHTING PROCEDURE
1. “STOP!” Read the safety information in the previous section.
2. Set the thermostat to the lowest setting.
3. Turn off all electrical power to the appliance.
4. Open the access door, hinged to open downward, by gently pulling the top toward you.
5. Push in the gas control knob slightly and turn clockwise to the “OFF” position (see Figure 3).

8
Figure 3
6. Wait a minimum of five minutes to clear out any residual gas. If you then smell gas, STOP!
Follow “B” in the Lighting Instruction section described on the previous page. If you don’t smell
gas, go to the next step.
7. Press in the gas control knob and turn counter-clockwise to the “PILOT” position.
8. Push the control knob in all the way and hold it in. Immediately push the piezo ignition button
repeatedly so that it clicks; continue until the pilot ignites. Maintain pressure on the knob for
about one minute after ignition. Then release the knob; if the pilot flame goes out repeat step 8;
if the pilot flame remains on, turn the knob counter-clockwise to the “ON” position.
NOTA: If the pilot lights will not stay on after several tries, turn the gas control knob to the “OFF”
position and call your service technician or gas supplier. If the control knob does not pop out when
released, STOP – shut off the gas supply to the control valve, and IMMEDIATELY call your service
technician or gas supplier.
9. If equipped with a wall switch, select the “ON” position. If equipped with a thermostat or
auxiliary control, set it to the desired setting.
10. Close the access door by lifting it until the magnets catch.
SHUT DOWN PROCEDURE
1. To turn off the main burner only, turn off the wall switch, thermostat, or On/Off switch located on
the left underside of the ash shelf.
2. For complete shutdown of the appliance, depress the gas control knob and turn it clockwise to the
“OFF” position.
I
gniter

9
2.3 Heat Output Adjustment
The valve supplied with the appliance has a HI/LO knob to control the heat output and flame height
(see Figure 2).
3.0 INSTALLATION
3.1 Installation & Safety Notes
WARNING: Do not connect 120 VAC to the gas control valve or it’s wiring, as this
will damage the valve.
Read all instructions before starting installation and follow them carefully during installation to ensure
maximum benefit and safety. Failure to follow these instructions will void your warranty and may
present a fire hazard. See the Osburn warranty at the back of this manual for disclaimers regarding
improper installation. This free standing stove and it’s components are tested and safe when
installed in accordance with this installation manual.
3.2 Unpacking
Please check the appliance carefully for any damaged or missing components (specifically check the
glass condition). Report any problems to your dealer. This unit is shipped with the logs in separate
packages inside the firebox.
3.3 Installation
For satisfactory results it is necessary to plan certain aspects of the installation prior to the
appliance’s final positioning. These include the vent system, the gas piping, and the fan wiring.
Combustible surfaces such as the hearth, mantle, and facing must also be planned for.
NOTE: All Installations Require Venting.

10
3.3.1Minimum Clearances
Minimum Clearances to Combustibles are:
A. Alcove width: 54-1/2“(1384mm) D. Side panel to Sidewall: 13-1/2“ (343mm)
B. Ceiling Height: 50“(1270 mm) E. Alcove Depth: 26“ (660mm)
C. Top of unit to ceiling: 20-1/2“ (521mm) F: Back of unit to back wall: 4“ (102mm)
Floor: 0” (0mm) – Note: Check local codes for floor requirements.
Corner: 4” (102mm)
A
B
C
DD
C
B
E
F
Figure 4
CAUTION: Due to high temperatures, the appliance should be located out of traffic and away from
furniture and draperies. Provide a minimum 48" (1219 mm) front clearance to the unit.
Note: The appliance may be installed directly on combustible flooring providing the unit
stability is maintained. Although the back wall and corner clearance is 4” (102mm), we
recommend 6" (150mm) for fan installation and removal.

11
3.3.2Gas Line Installation
Install supply line using any piping approved for your installation meeting CAN/CGA 6.10, AA 3,
ANSI Z21.24 or Z21.45. A qualified gas fitter should install the gas line in accordance with all
local building codes. If codes permit, coiled copper tubing may be used for gas supply.
Pressure taps are provided on the gas control for test gauge connections to measure the manifold
and inlet pressures.
This appliance must be isolated from the gas supply piping system by closing its individual manual
shut off valve during any pressure testing of the gas supply piping system at test pressures equal
to or less than 1/2 psig (3.45 kPa).
The appliance and its individual shut off valve must be disconnected from the gas supply piping
system during any pressure testing of the system at test pressures in excess of 1/2 psig (3.45
kPa).
Install the gas line as follows:
The gas line connection found on the back of the valve is a black iron street elbow. An AGA
and/or CGA approved shut off valve can be installed in conjunction with a nipple if so desired.
Installing the shut off valve on the end of the nipple will allow quick accessibility.
Upon initial firing check manifold pressure at pressure tap located on the front control panel (see
Figure 2).
WARNING: Do not use an open flame to test for gas leaks.
3.3.3Thermostat or Wall Switch Installation
The burner control switch is located under the left side of the decorative ash shelf. For your
convenience, the unit can also be operated by a thermostat, or a wall switch control. Millivolt
thermostats are available from any authorized Osburn dealer. Bedroom installations require the use
of a wall thermostat.
NOTE: The thermostat or wall switch MUST be rated for millivolt use. Minimize
splicing in all millivolt wiring & solder all unavoidable splices.
REMOTE CONTROL INSTALLATION
Please refer to instructions included with kit.
THERMOSTAT OR WALL SWITCH INSTALLATION
1. Mount the thermostat or wall switch in the desired location and run "two conductor thermostat
wire" to the burner control switch (Figure 5). To bypass the burner control switch, run the wires
directly to the gas valve (Figure 6).
Purchase "two conductor thermostat wire", which is not provided, at any local supplier. The
gauge of thermostat wire will determine the maximum wire length and distance at which to locate
the thermostat or wall switch. See table 2 below and the information packaged with the
thermostat. Be aware that, as the length of wire increases, the probability of adequate operating
voltage decreases.

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TABLE 2: THERMOSTAT WIRE INFORMATION
WIRE SIZE MAX. WIRE LENGTH
AWG mm ft. m
22 0.6 10 3.1
20 0.8 25 7.6
18 1.0 40 12.2
16 1.3 64 19.5
14 1.6 100 30.5
2. Solder an appropriate wire connector to each wire. To connect to the burner switch, 1/4" female
quick connects are required and to connect directly to the valve use spade tongue connectors.
3. ck tests can be performed on the valve by referring to the trouble shooting guide.
Figure 5

13
Figure 6
3.3.4Direct Vent Information
The stove must be connected to Simpson Duravent model 4” x 6 5/8” DV-GS vent, Security
Chimneys International (Secure Vent) or Selkirk (Direct-Temp). Install the vent components
according to the manufacturer's instructions. Use a maximum of two 90 degree elbows or four 45
degree elbows. Slope horizontal pipe at least 1/4" (6 mm) rise per foot of horizontal run. Allow 2" (50
mm) clearance to the vent. A vinyl siding standoff must be used when terminating horizontally to vinyl
siding. Refer to the graph for allowable vent configurations.
Note: If at any time the vent-air intake piping is dismantled, use the vent manufacturer’s
instructions and the sealing instructions for reassembly.
The minimum top horizontal vent system must consist of:
24'' (610 mm) vertical length directly on top of stove, one 90 degree elbow
12" (305 mm) length horizontally
Round support box/wall thimble
Horizontal termination cap0984 or 0985 (High Wind)
Snorkel kits can be used if needed. (Part #981 - 36" (915 mm) or Part #982 - 14" (355 mm)
The maximum top horizontal vent system consists of:
4' (1219 mm) vertical length directly on top of the stove, one 90 degree elbow
10' (3050 mm) maximum horizontal length
Horizontal termination cap0984 or 0985 (High Wind)
Snorkel kits can be used if needed. (Part #981 - 36" (915 mm) or Part #982 - 14" (355 mm)
Do not exceed more than 10' (3048 mm) of horizontal length of vent.

14
The maximum vertical (top vent) system consists of:
Up to 30' (9145 mm) of vertical height
Fire stop
Flashing
Collar
Low profile termination cap 0980
A rear vent system consists of: “No elbow is allowed in this set-up”
Up to a maximum of 24” (610mm) of horizontal length
Decorative wall thimble cover
Wall Thimble
36” Vent Snorkel #981 (only)
Use a ceiling fire stop when penetrating a ceiling. Use a round support box/wall thimble when
penetrating an inside wall, or on an outside wall, only when additional support or decorative trim is
required. The round support box is not required on basic installations. Vent terminals shall not be
recessed into a wall or siding.
NOTE:In Canada local codes may require the use of a wall thimble on horizontal terminations. Use
part # 942.

15
Typical Chimney Installation:
Vent terminals shall not be recessed into a wall or siding.
Figure 7
VENT SNORKEL

16
3.3.4.1Top / rear vent configuration
Figure 8
Steps required to change the vent configuration on your Westbay 38
1) Remove the trivet from the top of unit.
2) Remove stove top by removing 2 screws from the rear and one screw from each side (behind cabinet sides)
3) Remove Heat Shield by removing 6 screws.
4) Remove 6 screws and lift off Stove Back and Cabinet Side assembly
5) Remove 20 screws and take off Air Intake Cover Plate. Be careful not to damage the adjoining gasket.
6) Remove 14 screws and take off Exhaust Cover Plate. Be careful not to damage the adjoining gasket.
7) If the unit has been previously fired, all gaskets must be replaced. Old gaskets must be removed and all surfaces
must be cleaned.
8) Replace the Exhaust Cover Plate and the Air Intake Cover Plate with the vents pointing in the desired direction.
9) Re-assemble all components in the reverse order in which they were removed.
10) If you are converting from a top vent to a rear vent, remove and discard the Rear Vent Cover Plate.

17
3.3.4.2 Use of Sealant
Sealant is required on vent system joints. On longer vent runs, especially vertical runs, sealant will
ensure that the combustion air enters from outdoors, and not through the vent joints. Use Mil-Pac
Black sealant (or equivalent), available from local suppliers or Osburn dealers, on the inner pipe joint,
applying the sealant around the outside of the male part of the vent. A bead of silicone should be
used on the outside of the joint after assembly to seal the supply air.
Apply RTV high temperature sealant around male pipe.
Figure 9
3.3.4.3Vent Restrictor Installation
Figure 10
Vent Restrictor
When required installed the vent restrictor inside the 4” vent adaptor collar of the unit. Bend the tabs
down and slide the restrictor down inside the collar (see diagram). You will notice a rolled bead at this
point in which the restrictor will rest.
4” Collar attached
to unit

18
WARNING: A minimum clearance to combustibles must be maintained around the vent pipe of
2” on horizontal pipe runs and 1” on vertical pipe runs.
This model is certified for a maximum horizontal run of 10’ and maximum vertical height of 30’.
NOTE: The shaded areas on the vent diagrams indicate where vent restrictor’(s) are to be used.
Figure 11
Horizontal Wall Vent Terminations
The position of the horizontal vent termination must be positioned in such a way as to meet all local
building codes. Attach the correct length of vertical section pipe and an elbow fitting to the stove.
Mark the center line of the pipe facing the wall (allowing for a ¼” rise per foot of horizontal, example:
10 ft. of horizontal would require a rise of 2 ½”)
NOTE: ALLOWING THE VENT PIPE TO SLOPE DOWN TOWARDS THE VENT TERMINATION
COULD CAUSE POOR COMBUSTION AND/OR HIGH TEMPERTURES THAT MAY PRESENT A
FIRE HAZARD.
Restrictor / Vent Setup
MINIMUM VERTICAL RISE 2ft Simpson Duravent section
MAXIMUM VERTICAL RISE
30 ft (measured from the top of the stove)
MAXIMUM HORIZONTAL
RUN 10 ft with minimum 4 ft
vertical rise (measured
from the top of the stove)
15 ft 10 ft 0 5
30 ft
15 ft
10 ft
0 ft
5 ft
20 ft
25 ft
30 ft
15 ft
10 ft
0 ft
5 ft
20 ft
25 ft
2
ft Allowable
venting area
15ft
10 ft 0 5
Use restrictorin
this area up to and
including 30ft
Usenorestrictorin
this area

19
Mark a 10” x 10” square around the center mark (inside dimensions).Cut and frame the exterior wall
to except the Wall Thimble (Duravent part #942 penetration heat shield). Install the Wall Thimble
shield using wood screws. If the wall being penetrated is constructed of non-combustible material a 7”
hole sufficient for the vent pipe is acceptable.
Caution: When installing the terminal on to
vinyl siding, a vinyl siding kit or furring strips
must be used to prevent the terminal from
being recessed into the siding. When the
termination is to be attached to vinyl siding, apply
a bead of non-hardening mastic around the
outside edge to form a seal between the standoff
and the terminal. Attach the terminal to the
exterior wall by using four wood screws through
the holes in the corners of the vent terminal.
Complete the terminal installation; apply a bead
of mastic around the outer edge of the vinyl
standoff. With the termination installed you can
now connect completed vent assembly by sliding
the unit back towards the wall and carefully
inserting the pipe into the terminal. Before the
final connection is made slide on the decorative
wall thimble. Secure the terminal by securing the
termination straps to the pipe as close to the
exterior wall as possible using sheet metal
screws. Ensure that the straps are hidden by the
wall thimble cover. Apply decorative trim if
required.
Figure 12
Before sliding the pipe into the termination, ensure that you have slid the decorative wall thimble cover and
penetration heat shield over the pipe.
Slide the pipe into the vent, making sure that at least 11/4” overlap between the pipe and the terminal. Attach
the pipe by attaching two sheet metal screws through the terminal straps and into the pipe. Bend back the
straps towards the terminal making sure they are hidden by the decorative thimble. Finally attach the wall
penetration heat shield and secure with wood screws
Figure 13
Siding
Apply sealant
On four sides
Siding standoff
Wall Thimble
Duravent
Part #942
10”
Screws
HOT

20
3.3.4.4VENT TERMINAL LOCATIONS
Figure 14
A. 12’’ Clearance above grade, veranda, porch, deck or balcony
B. 12’’ Clearance to window or door that may be opened
C. 12’’ Clearance to permanently closed window
D. 18’’ Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2
feet (60 cm) from the center-line of terminal (direct or corner installation)
24’’ Vertical clearance to ventilated soffit (Basement installation)
E. 12’’ Clearance to unventilated soffit, (straight out or corner installation)
24’’ Clearance to unventilated soffit, (Basement installation)
F. 12’’ Clearance to outside corner
G. 12’’ Clearance to inside corner
H. Not to be installed above a meter/regulator assembly within 3 feet (90 cm) horizontally from the
center-line of the regulator.
I. 72’’ Clearance to service regulator vent outlet
J. 12’’ Clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other
appliance
K. 72’’ Clearance to a mechanical air supply inlet
L. 84’’ Clearance above paved sidewalk or a paved driveway located on public property. A vent shall not
terminate directly above a sidewalk or paved driveway which is located between two single family
dwellings and serves both dwelling
M. 12’’ Clearance under veranda, porch, deck, or balcony. Only permitted if veranda, porch, deck, or
balcony is fully open on a minimum of 2 sides beneath the floor.
N. 16” Clearance above the roof.
O. 24” Clearances from an adjacent wall including neighbouring buildings.
Local codes or regulations may require different clearances.
When the vent terminal is accessible, a certified guard shall be installed around the terminal.
The vent terminal may not be recessed into the wall or siding.
The vent terminal shall not be:
•Within 3 ft. of a building mechanical air supply;
•Less than 12 inches from a perpendicular wall;
•Under a window that pivots open.
In addition, in a structure with three walls and a roof, the vent terminal should not be installed if:
•The distance between the two sidewalls is less than 72";The roof exceed the walls by more than 24".