Napoleon Grills BGD38PT, BGD38NT User Manual
INSTALLER: THESE INSTRUCTIONS MUST BE CONVEYED TO AND REMAIN WITH THE HOMEOWNER.
CERTIFIED UNDER CANADIAN AND AMERICAN NATIONAL STANDARDS, CSA 2.22, AND ANSI Z21.50 RESPECTIVELY FOR VENTED GAS FIREPLACES.
DIRECT VENT MILLIVOLT SYSTEM
INSTALLATION AND OPERATION INSTRUCTIONS FOR
DIRECT VENT DECORATIVE GAS FIREPLACE
1
NATURAL GAS MODEL
PROPANE GAS MODEL
CERTIFIED FOR CANADA AND UNITED STATES USING ANSI / CSA METHODS
BGD38NT
BGD38PT
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 vapours and liquids in the vicinity of
this or any other appliance.
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 building.
• Immediately call your gas supplier from
a neighbour's phone. Follow the gas
supplier's instructions.
• If you cannot reach your gas supplier,
call the fire department.
Installation and service must be performed by a qualified installer, service agency
or the gas supplier.
Wolf Steel Ltd., 24 Napoleon Rd., Barrie, ON L4M 4Y8 Canada • (705)721-1212 • fax(705)722-6031
www.napoleonfireplaces.com • ask@napoleon.on.ca
W415-0244 / A / 05.15.03
2
PG 2-4 INTRODUCTION
Warranty
General Instructions
General Information
Care of Glass & Plated Parts
5 - 12 VENTING
Venting Lengths
Air Terminal Locations
Typical Vent Installations
Special Vent Installations
Venting Specifications
13
-
17 INSTALLATION
Wall and Ceiling Protection
Using Flexible Vent Components
Fireplace Vent Connection
Using Rigid Vent Components
Gas Installation
Mobile Home Installation
Framing
Nailing Tabs
Mantle Installation
18-19 FINISHING
Door Removal & Installation
TABLE of CONTENTS
Louvre Installation
Log Placement
Charcoal Embers
Glowing Embers
PG
20
OPTIONAL BLOWER INSTALLATION
21 OPTIONAL FAN INSTALLATION /
GD36 THERMOSTATIC SENSOR CONTROL
22 OPERATION / MAINTENANCE
Operating Instructions
Maintenance
23 ADJUSTMENTS
Pilot Burner Adjustment
Venturi Adjustment
24-25 REPLACEMENTS
Ordering Replacement Parts
Replacement Parts
Vent Kits
Terminal Kits
Accessories
26-27 TROUBLE SHOOTING GUIDE
28 SERVICE HISTORY
PLEASE RETAIN THIS MANUAL FOR FUTURE REFERENCE
WARNING
••
• Do not burn wood or other materials in this fireplace.
••
• Adults and especially children should be alerted to the hazards of high surface temperatures and
should stay away to avoid burns or clothing ignition. Supervise young children when they are in
the same room as the fireplace.
• Due to high temperatures, the fireplace should be located out of traffic and away from furniture
and draperies.
• Clothing or other flammable material should not be placed on or near the fireplace.
• Any safety screen or guard removed for servicing must be replaced prior to operating the fireplace.
• It is imperative that the control compartments, burners and circulating blower and its passageway in the fireplace and venting system are kept clean. The fireplace and its venting system
should be inspected before use and at least annually by a qualified service person. More frequent
cleaning may be required due to excessive lint from carpeting, bedding material, etc. The fireplace area must be kept clear and free from combustible materials, gasoline and other flammable
vapours and liquids.
• Under no circumstances should this fireplace be modified.
• This fireplace must not be connected to a chimney flue pipe serving a separate solid fuel burning
appliance.
• Do not use this fireplace if any part has been under water. Immediately call a qualified service
technician to inspect the fireplace and to replace any part of the control system and any gas
control which has been under water.
• Do not operate the fireplace with the glass door removed, cracked or broken. Replacement of the
glass should be done by a licensed or qualified service person. Use only with a glass door certified
with the fireplace.
• Do not strike or slam shut the fireplace glass door.
• This fireplace uses and requires a fast acting thermocouple. Replace only with a fast acting
thermocouple supplied by Wolf Steel Ltd.
NOTE: changes, other than editorial, are denoted by a vertical line in the margin.
W415-0244 / A / 05.15.03
NAPOLEON gas fireplaces are manufactured under the strict Standard of the world recognized
ISO 9001 : 2000 Quality Assurance Certificate.
NAPOLEON products are designed with superior components and materials, assembled by trained craftsmen who
take great pride in their work. The burner and valve assembly are leak and test-fired at a quality test station. Once
assembled the complete fireplace is thoroughly inspected by a qualified technician before packaging to ensure that
you, the customer, receives the quality product that you expect from NAPOLEON.
NAPOLEON GAS FIREPLACE PRESIDENT'S LIFETIME LIMITED WARRANTY
3
The following materials and workmanship in your new The following materials and workmanship in your new
The following materials and workmanship in your new
The following materials and workmanship in your new The following materials and workmanship in your new
ranted against defects for as long as you own the fireplace. This covers: combustion chamber,ranted against defects for as long as you own the fireplace. This covers: combustion chamber,
ranted against defects for as long as you own the fireplace. This covers: combustion chamber,
ranted against defects for as long as you own the fireplace. This covers: combustion chamber,ranted against defects for as long as you own the fireplace. This covers: combustion chamber,
heat exchanger, stainless steel burner, phazer™ logs and embers, ceramic glass (thermal break-heat exchanger, stainless steel burner, phazer™ logs and embers, ceramic glass (thermal break-
heat exchanger, stainless steel burner, phazer™ logs and embers, ceramic glass (thermal break-
heat exchanger, stainless steel burner, phazer™ logs and embers, ceramic glass (thermal break-heat exchanger, stainless steel burner, phazer™ logs and embers, ceramic glass (thermal breakage only), gold plated parts against tarnishing, porcelainized enamelled components and alumi-age only), gold plated parts against tarnishing, porcelainized enamelled components and alumi-
age only), gold plated parts against tarnishing, porcelainized enamelled components and alumi-
age only), gold plated parts against tarnishing, porcelainized enamelled components and alumi-age only), gold plated parts against tarnishing, porcelainized enamelled components and aluminum extrusion trims.num extrusion trims.
num extrusion trims.
num extrusion trims.num extrusion trims.
Electrical (110V and millivolt) components and wearable parts such as blowers, gas valves,Electrical (110V and millivolt) components and wearable parts such as blowers, gas valves,
Electrical (110V and millivolt) components and wearable parts such as blowers, gas valves,
Electrical (110V and millivolt) components and wearable parts such as blowers, gas valves,Electrical (110V and millivolt) components and wearable parts such as blowers, gas valves,
thermal switch, switches, wiring, remote controls, ignitor, gasketing, and pilot assembly arethermal switch, switches, wiring, remote controls, ignitor, gasketing, and pilot assembly are
thermal switch, switches, wiring, remote controls, ignitor, gasketing, and pilot assembly are
thermal switch, switches, wiring, remote controls, ignitor, gasketing, and pilot assembly arethermal switch, switches, wiring, remote controls, ignitor, gasketing, and pilot assembly are
covered and covered and
covered and
covered and covered and
the limited warranty.the limited warranty.
the limited warranty.
the limited warranty.the limited warranty.
Labour related to warranty repair is covered free of charge during the first year. RepairLabour related to warranty repair is covered free of charge during the first year. Repair
Labour related to warranty repair is covered free of charge during the first year. Repair
Labour related to warranty repair is covered free of charge during the first year. RepairLabour related to warranty repair is covered free of charge during the first year. Repair
work, however, requires the prior approval of an authorized company official. Labour costs towork, however, requires the prior approval of an authorized company official. Labour costs to
work, however, requires the prior approval of an authorized company official. Labour costs to
work, however, requires the prior approval of an authorized company official. Labour costs towork, however, requires the prior approval of an authorized company official. Labour costs to
the account of the account of
the account of
the account of the account of
must be done through an authorized must be done through an authorized
must be done through an authorized
must be done through an authorized must be done through an authorized
NAPOLEONNAPOLEON
NAPOLEON
NAPOLEONNAPOLEON
NAPOLEONNAPOLEON
NAPOLEON
NAPOLEONNAPOLEON
will provide replacement parts free of charge during the first year ofwill provide replacement parts free of charge during the first year of
will provide replacement parts free of charge during the first year of
will provide replacement parts free of charge during the first year ofwill provide replacement parts free of charge during the first year of
are based on a predetermined rate schedule and any repair work are based on a predetermined rate schedule and any repair work
are based on a predetermined rate schedule and any repair work
are based on a predetermined rate schedule and any repair work are based on a predetermined rate schedule and any repair work
NAPOLEONNAPOLEON
NAPOLEON
NAPOLEONNAPOLEON
dealer. dealer.
dealer.
dealer. dealer.
NAPOLEONNAPOLEON
NAPOLEON
NAPOLEONNAPOLEON
gas fireplace are war- gas fireplace are war-
gas fireplace are war-
gas fireplace are war- gas fireplace are war-
CONDITIONS AND LIMITATIONS
NAPOLEON warrants its products against manufacturing defects to the original purchaser only -- i.e., the individual or legal entity (registered customer) whose name appears on the
warranty registration card filed with NAPOLEON -- provided that the purchase was made through an authorized NAPOLEON dealer and is subject to the following conditions and limitations:
This factory warranty is nontransferable and may not be extended whatsoever by any of our representatives.
The gas fireplace must be installed by a licenced, authorized service technician or contractor. Installation must be done in accordance with the installation instructions included with
the product and all local and national building and fire codes.
This limited warranty does not cover damages caused by misuse, lack of maintenance, accident, alterations, abuse or neglect and parts installed from other manufacturers will nullify
this warranty.
This limited warranty further does not cover any scratches, dents, corrosion or discolouring caused by excessive heat, abrasive and chemical cleaners nor chipping on porcelain enamel
parts, mechanical breakage of PHAZER™ logs and embers, nor any venting components used in the installation of the fireplace.
NAPOLEON warrants its stainless steel burners against defects in workmanship and material for life, subject to the following conditions: During the first 10 years NAPOLEON will
replace or repair the defective parts at our option free of charge. From 10 years to life, NAPOLEON will provide replacement burners at 50% of the current retail price.
In the first year only, this warranty extends to the repair or replacement of warranted par ts which are defective in material or workmanship provided that the product has been operated
in accordance with the operation instructions and under normal conditions.
After the first year, with respect to this President's Limited Lifetime W arranty , NAPOLEON may , at its discretion, fully discharge all obligations with respect to this warranty by refunding
to the original warranted purchaser the wholesale price of any warranted but defective part(s).
After the first year, NAPOLEON will not be responsible for installation, labour or any other costs or expenses related to the reinstallation of a warranted part, and such expenses are
not covered by this warranty.
Notwithstanding any provisions contained in this President's Limited Lifetime Warranty , NAPOLEON’S responsibility under this warranty is defined as above and it shall not in any event
extend to any incidental, consequential or indirect damages.
This warranty defines the obligations and liability of NAPOLEON with respect to the NAPOLEON gas fireplace and any other warranties expressed or implied with respect to this product,
its components or accessories are excluded.
NAPOLEON neither assumes, nor authorizes any third party to assume, on its behalf, any other liabilities with respect to the sale of this product. NAPOLEON will not be responsible
for: over-firing, downdrafts, spillage caused by environmental conditions such as rooftops, buildings, nearby trees, hills, mountains, inadequate vents or ventilation, excessive venting
configurations, insufficient makeup air, or negative air pressures which may or may not be caused by mechanical systems such as exhaust fans, furnaces, clothes dryers, etc.
Any damages to fireplace, combustion chamber, heat exchanger, brass trim or other component due to water, weather damage, long periods of dampness, condensation, damaging
chemicals or cleaners will not be the responsibility of NAPOLEON.
The bill of sale or copy will be required together with a serial number and a model number when making any warranty claims from your authorized dealer. The warranty registration
card must be returned within fourteen days to register the warranty.
NAPOLEON reserves the right to have its representative inspect any product or part thereof prior to honouring any warranty claim.
ALL SPECIFICATIONS AND DESIGNS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE DUE TO ON-GOING PRODUCT IMPROVEMENTS. NAPOLEON® IS A REGISTERED
TRADEMARK OF WOLF STEEL L TD. PATENTS U.S. 5.303.693.801 - CAN. 2.073.41 1, 2.082.915. © WOLF STEEL L TD.
W415-0244 / A / 05.15.03
4
GENERAL INSTRUCTIONS
THIS GAS FIREPLACE SHOULD BE INSTALLED AND SERVICED BY A QUALIFIED INSTALLER to conform with local codes.
Installation practices vary from region to region and it is
important to know the specifics that apply to your area,
for example: in Massachusetts State:
• The fireplace damper must be removed or welded in the open
position prior to installation of a fireplace insert or gas log.
• The appliance off valve must be a “T” handle gas cock.
• The flexible connector must not be longer than 36 inches.
• The appliance is not approved for installation in a bedroom or
bathroom unless the unit is a direct vent sealed combustion
product.
• WARNING: This product must be installed by a licensed plumber
or gas fitter when installed within the commonwealth of
Massachusetts.
In absence of local codes, install the BGD38 to the current
National Fuel Gas Code, ANSI Z223.1, or the current CAN/
CGA B149, Installation Codes. Mobile home installation
must conform with local codes. In the absence of local
codes, install to the current standard for gas equipped
mobile housing CAN/CSA Z240 MH Series in Canada or
the manufactured home construction and safety standard,
Title 24 CFR, part 3280, or the Fire Safety Criteria for manufactured home installations, Sites and Community Standard ANSI/NFPA 501A in the United States.
The fireplace and its individual shutoff valve must be disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess
of 1/2 psig (3.5 kPa). The fireplace must be isolated from
the gas supply piping system by closing its individual
manual shutoff valve during any pressure testing of the
gas supply piping system at test pressures equal to or
less than 1/2 psig (3.5 kPa).
When the fireplace is installed directly on carpeting, vinyl
tile or other combustible material other than wood flooring,
the fireplace shall be installed on a metal or wood panel
extending the full width and depth.
If the optional fan or blower is installed, the junction box
must be electrically connected and grounded in accordance with local codes. In the absence of local codes, use
the current CSA C22.1 CANADIAN ELECTRICAL CODE in
Canada or the ANSI/NFPA 70-1996 NATIONAL ELECTRICAL CODE in the United States.
GENERAL INFORMATION
FOR YOUR SA TISF ACTION, THIS FIREPLACE HAS BEEN
TEST-FIRED TO ASSURE ITS OPERATION AND QUALITY! Maximum input is 26,000 BTU/hr for natural gas and
propane. When the fireplace is installed at elevations above
4,500ft, and in the absence of specific recommendations
from the local authority having jurisdiction, the certified high
altitude input rating shall be reduced at the rate of 4% for
each additional 1,000ft.
Maximum output for natural gas is 16,735 BTU/hr at an
efficiency of 64.4% with the fan on, and 17,212 BTU/hr for
propane at an efficiency of 66.2% with the fan on. The maximum A.F.U.E. (annual fuel utilization efficiency) rating is
56.3% for natural gas and 57.8% for propane.
Minimum inlet gas supply pressure is 4.5 inches water
column for natural gas and 11 inches water column for
propane. Maximum inlet gas pressure is 7 inches water
column for natural gas and 13 inches water column for
propane. Manifold pressure under flow conditions is 3.5
inches water column for natural gas and 10 inches water
column for propane.
This fireplace is approved for bathroom, bedroom and bedsitting room installations and is suitable for mobile home
installation. The natural gas model can only be installed in a
mobile home that is permanently positioned on its site and
fueled with natural gas.
No external electricity (110 volts or 24 volts) is re-No external electricity (110 volts or 24 volts) is re-
No external electricity (110 volts or 24 volts) is re-
No external electricity (110 volts or 24 volts) is re-No external electricity (110 volts or 24 volts) is required for the gas system operationquired for the gas system operation
quired for the gas system operation.
quired for the gas system operationquired for the gas system operation
Expansion / contraction noises during heating up
and cooling down cycles are normal and are to be
expected.
CARE OF GLASS, AND PLATED PARTS
Do not use abrasive cleaners to clean plated parts. Buff lightly
with a clean dry cloth. The BGD38 is factory equipped with
tempered glass. The glass thickness is 3/16". Use only replacement glass available from your Napoleon dealer. DO
NOT SUBSTITUTE MA TERIALS. Clean the glass after the first
10 hours of operation with a recommended gas fireplace
glass cleaner. Thereafter clean as required. DO NOT CLEAN
GLASS WHEN HOT! If the glass is not kept clean permanent
discolouration and / or blemishes may result.
Use only accessories designed for and listed with
your specific fireplace.
Provide adequate ventilation air. Provide adequate
accessibility clearance for servicing and operating
the fireplace. Never obstruct the front opening of
the fireplace.
For safe and proper operation of the fireplace follow
the venting instruction exactly.
Deviation from the minimum vertical vent length can
create difficulty in burner start-up and/or carboning.
Provide a means for visually checking the vent connection to the fireplace after the fireplace is installed.
The fireplace must be installed against finished
walls. Do not install against a vapour barrier or exposed insulation.
Vent lengths that pass through unheated spaces (attics, garages, crawl spaces) should be insulated
with the insulation wrapped in a protective sleeve
to minimize condensation.
Objects placed in front of the fireplace must be kept
a minimum of 48" away from the front face of the
unit.
W415-0244 / A / 05.15.03
VENTING
5
FIGURE 1
VENTING LENGTHS
Use only Wolf Steel or Simpson Dura-Vent Model DV-GS
venting components. Minimum and maximum vent lengths,
for both horizontal and vertical installations, and air terminal locations for either system are set out in this manual
and must be adhered to. For Simpson Dura-Vent, follow
the installation procedure provided with the venting components.
When using Wolf Steel venting components, use only approved Wolf Steel rigid / flexible components with the following termination kits: WALL TERMINAL KIT GD422, or
1/12 TO 7/12 PITCH ROOF TERMINAL KIT GD410, 8/12 TO
12/12 ROOF TERMINAL KIT GD411, FLAT ROOF TERMI-
NAL KIT GD412 or PERISCOPE KIT GD401 (for wall penetration below grade). With flexible venting, in conjunction
with the various terminations, use either the 5 foot vent kit
GD420 or the 10 foot vent kit GD430.
Wolf Steel rigid and flexible venting systems must not
be combined.
Wolf Steel and Simpson Dura-Vent venting systems
must not be combined.
These vent kits allow for either horizontal or vertical venting
of the fireplace. FIGURES 3a, & 5a. The maximum allow-
able horizontal run is 20 feet. The maximum allowable vertical vent length is 40 feet. The maximum number of 5" vent
connections is two horizontally or three vertically (excluding the fireplace and the air terminal connections) when
using aluminum flexible venting.
For optimum flame appearance and fireplace performance, keep the vent length and number of elbows to a
minimum.
The air terminal must remain unobstructed at all times.
Examine the air terminal at least once a year to verify
that it is unobstructed and undamaged.
Purge all gas lines with the glass door of the fireplace
open. Assure that a continuous gas flow is at the burner
before closing the door.
Under extreme vent configurations, allow several minutes
(5-15) for the flame to stabilize after ignition.
Eight (8") inches is the minimum bend radius allowed
for the 8" diameter flexible liner.
For optimum performance it is recommended that all
horizontal runs have a 1 inch rise per foot when using
Napoleon flexible vent components.
A terminal shall not terminate directly above a sidewalk
or paved driveway which is located between two single family dwellings and serves both dwellings. Local
codes or regulations may require different clearances.
Do not allow the inside liner to bunch up on horizontal or
vertical runs and elbows. Keep it pulled tight. A 1¼" air
gap all around between the inner liner and outer liner is
required for safe operation. Use a firestop when penetrating interior walls, floor or ceiling.
Minimum clearance to combustible construction from fireplace and vent surfaces:
sides, back, bottom and top of the unit 0 inch
recessed depth 18 inches
top, sides and bottom of the vent pipe 1 inch
Horizontal runs may have a 0 inch rise per foot in all
cases using SIMPSON DURA-VENT or NAPOLEON
RIGID OR FLEXIBLE venting components when venting as illustrated in Figures 3, and 4.
Only a clearance to combustibles of 1" all around the
vent pipe is required.
W415-0244 / A / 05.15.03
6
i
AIR TERMINAL INSTALLATIONS
INSTALLATIONS
CANADIAN U.S.A.
A
12 INCHES
12 INCHES
Clearance above grade, veranda porch, deck or balcony.
B
C
12 INCHES
12 INCHES*
9 INCHES
12 INCHES*
Clearance to windows or doors that open.
Clearance to permanently closed windows.
Vertical clearance to ventilated soffit located above the terminal within
D
18 INCHES**
12 INCHES**
E
F
0 INCHES
0 INCHES***
G
2 INCHES***
H
I
J
K
L
M
N
O
*
* Recom men ded to pr event cond ensation on windo ws and therm al brea kag e
*
****
** It is recommended to use a heat shie ld and to maximize the distance to vinyl clad soffits.
****
** *** *
** * The perisco pe GD-2 01 requir es a minimu m 18 inches clearance from an ins ide cor ner.
** *** *
** * *** * *
** * * This is a reco mmend ed distan ce. For addit ional requi rements check local codes.
** * *** * *
†
† Three feet above if wi thin 10 feet horizontal ly.
†
‡
‡ A vent shall not terminate dir ectly above a sidewalk or paved driveway that is located between two single fam
‡
† †† †
† † Permitted only if the veranda, porch, or deck is fully open on a minimum of two sides beneath the floor.
† †† †
† *† *
† * Rec omm enc ed to prev ent rec irculation of ex hau st pro duc ts. For addi tional requi re men ts check loca l codes.
† *† *
W415-0244 / A / 05.15.03
3 FEET
3 FEET
12 INCHES
6 FEET
7 FEET‡
12 INCHES††
16 INCHES
2 FEET†*
dwe llings and serves both dwellings.
18 INCHES**
12 INCHES**
0 INCHES
0 INCHES***
2 INCHES***
3 FEET****
3 FEET****
9 INCHES
3 FEET†
7 FEET****
12 INCHES****
16 INCHES
2 FEET†*
a horizontal distance of 2 feet from the centerline of the terminal.
Clearance to unventilated soffit.
Clearance to an outside corner wall.
Clearance to an inside non-combustible corner wall or protruding
non-combustible obstructions (chimney, etc.).
Clearance to an inside combustible corner wall or protruding combustible obstructions ( vent chase, etc.).
Clearance to each side of the centerline extended above the meter
/ regulator assembly to a maximum vertical distance of 15ft.
Clearance to a service regulator vent outlet.
Clearance to a non-mechanical air supply inlet to the building or a
combustion air inlet to any other appliance.
Clearance to a mechanical air supply inlet.
Clearance above a paved sidewalk or paved driveway located on
public property unless fitted with a heat shield kit GD-301.
Clearance under a veranda, porch, deck or balcony.
Clearance above the roof.
Clearance from an adjacent wall including neighbouring buildings.
TYPICAL VENT INSTALLATIONS
For optimum performance, it is recommended
that all horizontal runs have a 1 inch rise per foot.
When terminaWhen termina
When termina
When terminaWhen termina
minimum 36 inches and a maximum 40 feet fromminimum 36 inches and a maximum 40 feet from
minimum 36 inches and a maximum 40 feet from
minimum 36 inches and a maximum 40 feet fromminimum 36 inches and a maximum 40 feet from
the centre of the fireplace flue outlet.the centre of the fireplace flue outlet.
the centre of the fireplace flue outlet.
the centre of the fireplace flue outlet.the centre of the fireplace flue outlet.
ting vting v
ting v
ting vting v
erer
ticallytically
er
tically
erer
ticallytically
, the v, the v
, the v
, the v, the v
erer
tical rise is atical rise is a
er
tical rise is a
erer
tical rise is atical rise is a
7
FIGURES 3
SPECIAL VENT INSTALLATIONS
PERISCOPE TERMINATION
Use the GD401 periscope kit to locate the air termination
above grade. The periscope must be installed so that when
final grading is completed, the bottom air slot is located a
minimum of 12 inches above grade. The maximum allowable vent length depends on the fireplace, as illustrated.
FIGURE 4
W415-0244 / A / 05.15.03
8
VENTING APPLICATION FLOW CHART
VERVER
TICALTICAL
VER
TICAL
VERVER
HORIZONTHORIZONT
HORIZONT
HORIZONTHORIZONT
TERMINTERMIN
TERMIN
TERMINTERMIN
vertical risevertical rise
vertical rise
vertical risevertical rise
is equal tois equal to
is equal to
is equal tois equal to
or greateror greater
or greater
or greateror greater
than thethan the
than the
than thethan the
horizontalhorizontal
horizontal
horizontalhorizontal
runrun
run
runrun
ALAL
AL
ALAL
AA
TIONTION
A
TION
AA
TIONTION
vertical risevertical rise
vertical rise
vertical risevertical rise
is less thanis less than
is less than
is less thanis less than
horizontalhorizontal
horizontal
horizontalhorizontal
runrun
run
runrun
TERMINTERMIN
TERMIN
TERMINTERMIN
vertical risevertical rise
vertical rise
vertical risevertical rise
is equal tois equal to
is equal to
is equal tois equal to
or greateror greater
or greater
or greateror greater
than thethan the
than the
than thethan the
horizontalhorizontal
horizontal
horizontalhorizontal
runrun
run
runrun
TICALTICAL
AA
TIONTION
A
TION
AA
TIONTION
verticalvertical
vertical
verticalvertical
rise is lessrise is less
rise is less
rise is lessrise is less
than hori-than hori-
than hori-
than hori-than horizontal runzontal run
zontal run
zontal runzontal run
horizontalhorizontal
horizontal
horizontalhorizontal
run + verti-run + verti-
run + verti-
run + verti-run + vertical rise tocal rise to
cal rise to
cal rise tocal rise to
maximummaximum
maximum
maximummaximum
of 40 feetof 40 feet
of 40 feet
of 40 feetof 40 feet
horizontalhorizontal
horizontal
horizontalhorizontal
run + verti-run + verti-
run + verti-
run + verti-run + vertical rise tocal rise to
cal rise to
cal rise tocal rise to
maximum ofmaximum of
maximum of
maximum ofmaximum of
24.75 feet24.75 feet
24.75 feet
24.75 feet24.75 feet
4.2 times4.2 times
4.2 times
4.2 times4.2 times
the verticalthe vertical
the vertical
the verticalthe vertical
rise equal torise equal to
rise equal to
rise equal torise equal to
or greateror greater
or greater
or greateror greater
than thethan the
than the
than thethan the
horizontalhorizontal
horizontal
horizontalhorizontal
runrun
run
runrun
horizontalhorizontal
horizontal
horizontalhorizontal
run + verti-run + verti-
run + verti-
run + verti-run + vertical rise tocal rise to
cal rise to
cal rise tocal rise to
maximummaximum
maximum
maximummaximum
of 40 feetof 40 feet
of 40 feet
of 40 feetof 40 feet
horizontalhorizontal
horizontal
horizontalhorizontal
run + verti-run + verti-
run + verti-
run + verti-run + vertical rise tocal rise to
cal rise to
cal rise tocal rise to
maximummaximum
maximum
maximummaximum
of 40 feetof 40 feet
of 40 feet
of 40 feetof 40 feet
3 times the3 times the
3 times the
3 times the3 times the
vertical risevertical rise
vertical rise
vertical risevertical rise
equal to orequal to or
equal to or
equal to orequal to or
greatergreater
greater
greatergreater
than thethan the
than the
than thethan the
horizontalhorizontal
horizontal
horizontalhorizontal
runrun
run
runrun
W415-0244 / A / 05.15.03
9
DEFINITIONS
for the following symbols used in the venting calculations and examples are:
> - greater than
> - equal to or greater than
< - less than
< - equal to or less than
H
- total of both horizontal vent lengths (HR) and offsets
T
) in feet
(H
H
H
V
O
- combined horizontal vent lengths in feet
R
- offset factor: .03(total degrees of offset - 90°*) in
O
feet
- combined vertical vent lengths in feet
T
TOP EXIT / HORIZONTAL TERMINATION
when (H
Simple venting configuration (only one 90° elbow)
) < (VT)
T
FIGURE 5
ELBOW VENT LENGTH VALUES
feet inches
1° 0.03 0.5
15° 0.45 6.0
30° 0.9 11.0
45° 1.35 16.0
90°* 2.7 32.0
* the first 90° offset has a zero value and is shown in
the formula as -90°
For vent configurations requiring more than one 90° elbow, the following formulas apply:
Formula 1: HT < V
Formula 2: HT + VT < 40 feet
Example 1:
T
90°
H
2
See graph to determine the required vertical rise VT for the
required horizontal run HT.
VERTICAL
RISE IN
FEET
V
T
HORIZONTAL VENT RUN PLUS OFFSET IN FEET H
The shaded area within the lines represents acceptable
values for HT and V
.
T
V
2
FIGURE 6
H
1
V
1
V
2
V
T
H
1
H
2
H
R
H
O
H
T
T
HT + V
Formula 1: H
Formula 2: H
90°
V
1
=3 ft
=8 ft
=
V
+
V
=
1
= 2.5 ft
=2 ft
= H1 + H2 = 2.5 + 2 = 4.5 ft
=.
03(three 90° elbows - 90°) = .03(270° - 90°) = 5.4 ft
= HR + HO = 4.5 + 5.4 = 9.9 ft
= 9.9 + 11 = 20.9 f t
T
3 + 8 = 1 1 ft
2
< V
T
9.9 < 1 1
T
+ VT < 40 feet
T
20.9 < 40
Since both formulas are met, this vent configuration is acceptable.
90°
W415-0244 / A / 05.15.03
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