Napoleon StarFire GD70PT-S Installation And Operation Instructions Manual

INSTALLER: THESE INSTRUCTIONS MUST BE CONVEYED TO AND REMAIN WITH THE HOMEOWNER.

CERTIFIED UNDER CANADIAN AND AMERICAN NATIONAL STANDARDS, CSA 2.33, ANSI Z21.88 FOR VENTED GAS FIREPLACE HEATERS

VENTED GAS FIREPLACE HEATER

DIRECT VENT MILLIVOLT SYSTEM

1

INSTALLATION AND OPERATION INSTRUCTIONS FOR:

NATURAL GAS MODEL

PROPANE GAS MODEL

CERTIFIED FOR CANADA AND UNITED STATES USING ANSI / CSA METHODS

GD70NT-S

GD70PT-S

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
neighbor'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 • [phone] • fax[phone]

www.napoleonfireplaces.com • [e-mail]

W415-0434 / C / 03.24.05

2

TABLE of CONTENTS

PG2-5 INTRODUCTION

Warranty
Dimensions
General Instructions
General Information
Care of Glass & Plated Parts

5-10 VENTING

Vent lengths
Venting Specifications
Air Terminal Locations

11-15 INSTALLATION/FRAMING

Wall & Ceiling Protection
Using Flexible Vent Components
Fireplace Vent Connection
Using Rigid Vent Components
Restricting Vertical Vents
Gas Installation
Mobile Home Installation
Framing
Mantle Clearances and Enclosures

16-19 FINISHING

Door Installation
Door Opening and Closing
Louvre Installation
Log Shipping Bracket Removal
Decorative Panels
Charcoal Strips
Log Placement
Baffle Installation
Charcoal Embers
Accent Lite Replacement

20 BLOWER INSTALLATION

THERMODISC REPLACEMENT

21-22 OPERATION / MAINTENANCE

Operating Instructions
Maintenance

22 ADJUSTMENTS

Pilot Burner Adjustment
Venturi Adjustment

23-24 REPLACEMENTS

Ordering Replacement Parts
Replacement Parts
Terminal Kits
Vent Kits
Accessories

25-26 TROUBLE SHOOTING GUIDE

27 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.

• 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.

W415-0434 / C / 03.24.05

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. 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

The following materials and workmanship in your new napoleon gas fireplace are warranted 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 breakage only), gold plated parts against tarnishing, porcelainized enamelled
components and aluminum extrusion trims.
Electrical (110V and millivolt) components and wearable parts such as the blower, gas valve, thermal switch, switches,
wiring, remote control, ignitor, gasketing, and pilot assembly are covered and NAPOLEON will provide replacement
parts free of charge during the first year of the limited warranty. Light bulbs are not covered by this warranty.

Labour 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 to the account of NAPOLEON are based on a prede­termined rate schedule and any repair work must be done through an authorized NAPOLEON dealer.

3

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 parts 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 Warranty, 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 LTD. PATENTS U.S. 5.303.693.801 - CAN. 2.073.411, 2.082.915. © WOLF STEEL LTD.

W415-0434 / C / 03.24.05

4

FIGURE 1

WARNING: The door for this fireplace is sold

separately. The door must be installed and

closed before operation begins. Refer to

"DOOR INSTALLATION" under the "FINISH-

ING" Section for details.

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 to the current CAN/CGA ­B149 Installation Code in Canada or to the National Fuel
Gas Code, ANSI Z223.1, and NFPA 54 in the United States.
Suitable for mobile home installation if installed in accor­dance with the current standard CAN/CSA Z240MH Series,
for gas equipped mobile homes, in Canada or ANSI Z223.1
and NFPA 54 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.

The optional heat circulating blower is supplied with a cord. If
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 NATIONAL ELEC­TRICAL CODE in the United States.

W415-0434 / C / 03.24.05

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 7" diameter flexible air liner.

Provide adequate ventilation and combustion air. Provide
adequate accessibility clearance for servicing and operat­ing the fireplace. Never obstruct the front opening of the
fireplace.

Objects placed in front of the fireplace must be kept a
minimum of 48" from the front face of the unit.

Minimum clearance to combustible construction
from fireplace and vent surfaces:

fireplace framing - 0" to stand-offs (top, rear and sides)
fireplace finishing - 3" to sides, 7¼" to top of unit
vent pipe - 2 inches *
recessed depth - 16 inches

* The first 2 feet of outer 7 inch diameter vent pipe from
the appliance must be wrapped in the 1" thick insulation
sleeve (supplied). There must be a 1inch air gap in addi-

See FSee F

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tion to the insulation sleeve.

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GENERAL INFORMATION

FOR YOUR SATISFACTION, THIS FIREPLACE HAS BEEN
TEST-FIRED TO ASSURE ITS OPERATION AND QUALITY!

Maximum input is 35,000 BTU/hr for natural gas and 33,000
BTU/hr for propane. When the fireplace is installed at eleva­tions above 4,500ft, and in the absense 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 28,350 BTU/hr at an efficiency of 81%; and 26,400 BTU/
hr for propane at an efficiency of 80%. Minimum A.F.U.E. rating
is 64% for natural gas and 65% 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.

5

This fireplace may This fireplace may

This fireplace may

This fireplace may This fireplace may

nently located, manufactured (mobile) home, where notnently located, manufactured (mobile) home, where not

nently located, manufactured (mobile) home, where not

nently located, manufactured (mobile) home, where notnently located, manufactured (mobile) home, where not
prpr

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pr

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prpr

ohibited bohibited b

This fireplace is only for use with the type of gas indicatedThis fireplace is only for use with the type of gas indicated

This fireplace is only for use with the type of gas indicated

This fireplace is only for use with the type of gas indicatedThis fireplace is only for use with the type of gas indicated
on the ron the r

on the r

on the ron the r
with other gases, unless a certified kit is used.with other gases, unless a certified kit is used.

with other gases, unless a certified kit is used.

with other gases, unless a certified kit is used.with other gases, unless a certified kit is used.
No external electricity (110 volts or 24 volts) is required forNo external electricity (110 volts or 24 volts) is required for

No external electricity (110 volts or 24 volts) is required for

No external electricity (110 volts or 24 volts) is required forNo external electricity (110 volts or 24 volts) is required for
the gas system operation.the gas system operation.

the gas system operation.

the gas system operation.the gas system operation.

y local codesy local codes

y local codes

y local codesy local codes

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be installed in an aftermarket perma-

be installed in an aftermarket perma-be installed in an aftermarket perma-

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Expansion / contraction noises during heating up and cool­ing down cycles are normal and are to be expected. Change
in flame appearance from "HI" to "LO" is more evident in
natural gas than in propane.

VENTING

VENTING LENGTHS & AIR TERMINAL LOCATIONS

Use only Wolf Steel, Simpson Dura-Vent, Selkirk Direct

Temp or American Metal Amerivent 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,

and American Metal Amerivent, follow the installation

procedure provided with the venting components.
For vent systems that provide seals on the inner exhaust
flue, only the outer air intake joints must be sealed using a
red high temperature silicone (RTV). This same sealant
maybe used on both the inner exhaust and outer intake
vent pipe joints of all other approved vent systems except
for the exhaust vent pipe connection to the fireplace flue
collar which must be sealed using the black high tem­perature sealant Mill Pac. High temperature sealant must
be ordered separately.

When using Napoleon venting components, use only ap­proved Wolf Steel Ltd. rigid / flexible vent components with
the following termination kits: WALL TERMINAL KIT GD222,
or 1/12 TO 7/12 PITCH ROOF TERMINAL KIT GD110, 8/12
TO 12/12 ROOF TERMINAL KIT GD111, FLAT ROOF TER-
MINAL KIT GD112 or PERISCOPE KIT GD201 (for wall pen-
etration below grade). With flexible venting, in conjunction
with the various terminations, use either the 5 foot vent kit
GD220 or the 10 foot vent kit GD330. These vent kits allow
for either horizontal or vertical venting of the fireplace. FIG-
URES 2, 3, & 5.

The maximum allowable vertical vent length is 40 feet.

The maximum number of allowable 4" vent connections is
three horizontally or 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.

When venting, the horizontal run must be kept to a mini­mum of 12 inches

or a maximum of 20 feet. If a 20 foot
horizontal run is required, the fireplace must have a
minimum vertical rise immediately off the fireplace of
57 inches.

FIGURES FIGURES

FIGURES

FIGURES FIGURES

2a-c2a-c

..

2a-c

. When terminating vertically,

2a-c2a-c

..

the vertical rise is a minimum 34 inches and a maximum
40 feet above the fireplace.

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 2a, 2b, and 2c.

Selkirk Direct Temp

FIGURE 3.FIGURE 3.

FIGURE 3.

FIGURE 3.FIGURE 3.

CARE OF GLASS, AND PLATED PARTS

Do not use abrasive cleaners to clean plated parts. Buff
lightly with a clean dry cloth. The glass is 3/16" ceramic
glass available from your Napoleon / Wolf Steel Ltd. dealer.
DO NOT SUBSTITUTE MATERIALS. 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.

FIGURES 2a-c

FIGURE 3

For optimum performance, it is recommended that allFor optimum performance, it is recommended that all

For optimum performance, it is recommended that all

For optimum performance, it is recommended that allFor optimum performance, it is recommended that all
horizontal runs have a minimum ¼ inch rise per foot.horizontal runs have a minimum ¼ inch rise per foot.

horizontal runs have a minimum ¼ inch rise per foot.

horizontal runs have a minimum ¼ inch rise per foot.horizontal runs have a minimum ¼ inch rise per foot.

Wolf Steel rigid and flexible venting systems must not
be combined.
Wolf Steel, Simpson Dura-Vent, Selkirk Direct Temp and

American Metal Amerivent venting systems must not

be combined.

Provide a means for visually checking the vent connec-Provide a means for visually checking the vent connec-

Provide a means for visually checking the vent connec-

Provide a means for visually checking the vent connec-Provide a means for visually checking the vent connec­tion to the fireplace after the fireplace is installed.tion to the fireplace after the fireplace is installed.

tion to the fireplace after the fireplace is installed.

tion to the fireplace after the fireplace is installed.tion to the fireplace after the fireplace is installed.
Do not allow the inside liner to bunch up on horizontal orDo not allow the inside liner to bunch up on horizontal or

Do not allow the inside liner to bunch up on horizontal or

Do not allow the inside liner to bunch up on horizontal orDo not allow the inside liner to bunch up on horizontal or
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gap between the inner and outer liner all around is re-gap between the inner and outer liner all around is re-

gap between the inner and outer liner all around is re-

gap between the inner and outer liner all around is re-gap between the inner and outer liner all around is re­quired for safe operation.quired for safe operation.

quired for safe operation.

quired for safe operation.quired for safe operation.
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ent lengths thaent lengths tha

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ent lengths tha

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tics, garages, crawl space) should be wrapped with atics, garages, crawl space) should be wrapped with a

tics, garages, crawl space) should be wrapped with a

tics, garages, crawl space) should be wrapped with atics, garages, crawl space) should be wrapped with a
protective insulation sleeve to minimize condensation.protective insulation sleeve to minimize condensation.

protective insulation sleeve to minimize condensation.

protective insulation sleeve to minimize condensation.protective insulation sleeve to minimize condensation.
Use a firestop when penetrating interior walls, floor orUse a firestop when penetrating interior walls, floor or

Use a firestop when penetrating interior walls, floor or

Use a firestop when penetrating interior walls, floor orUse a firestop when penetrating interior walls, floor or
ceiling.ceiling.

ceiling.

ceiling.ceiling.
In order to avoid the possibility of exposed insulation orIn order to avoid the possibility of exposed insulation or

In order to avoid the possibility of exposed insulation or

In order to avoid the possibility of exposed insulation orIn order to avoid the possibility of exposed insulation or
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it is recommended that the walls of the fireplace enclo-it is recommended that the walls of the fireplace enclo-

it is recommended that the walls of the fireplace enclo-

it is recommended that the walls of the fireplace enclo-it is recommended that the walls of the fireplace enclo­sursur

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other outside wother outside w

other outside w

other outside wother outside w
clearance to combustibles is maintained within the cav-clearance to combustibles is maintained within the cav-

clearance to combustibles is maintained within the cav-

clearance to combustibles is maintained within the cav-clearance to combustibles is maintained within the cav­ityity

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For safe and proper operation of the fireplace followFor safe and proper operation of the fireplace follow

For safe and proper operation of the fireplace follow

For safe and proper operation of the fireplace followFor safe and proper operation of the fireplace follow
the vthe v

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Deviation from the minimum vertical vent length can cre-Deviation from the minimum vertical vent length can cre-

Deviation from the minimum vertical vent length can cre-

Deviation from the minimum vertical vent length can cre-Deviation from the minimum vertical vent length can cre­ate difficulty in burner start-up and/or carboning.ate difficulty in burner start-up and/or carboning.

ate difficulty in burner start-up and/or carboning.

ate difficulty in burner start-up and/or carboning.ate difficulty in burner start-up and/or carboning.

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W415-0434 / C / 03.24.05

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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

H

R

H

O

V

T

) in feet

(H

O

- combined horizontal vent lengths in feet

- offset factor: .03(total degrees of offset - 90°*) in

feet

- combined vertical vent lengths in feet

TOP EXIT / HORIZONTAL TERMINATION

when (HT) < (VT)

Simple venting configuration (only one 90° elbow)

FIGURE 4

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 H

.

T

VERTICAL
RISE IN
FEET

V

T

HORIZONTAL VENT RUN PLUS OFFSET IN FEET

The shaded area within the lines represents acceptable
values for HT and VT.

W415-0434 / C / 03.24.05

FIGURE 5

90°

V

1

V

2

H

V1=3 ft
V

=8 ft

2

VT=

V1 +

V2 =

3 + 8 = 11 ft

H1= 2.5 ft
H

=2 ft

2

= H1 + H2 = 2.5 + 2 = 4.5 ft

H

R

=.

H

H

O

T

HT= HR + HO = 4.5 + 5.4 = 9.9 ft

H

T

Formula 1: H

Formula 2: H

03(three 90° elbows - 90°) = .03(270° - 90°) = 5.4 ft

+ VT = 9.9 + 11 = 20.9 ft

< V

T

9.9 < 11

20.9

T

+ VT < 40 feet

T

< 40

Since both formulas are met, this vent configuration is ac­ceptable.

90°

1

TOP EXIT / HORIZONTAL TERMINATION

7

when (H

) > (VT)

T

Simple venting configuration (only one 90° elbow)

FIGURE 6

See graph to determine the required ver­tical rise V
HT.

for the required horizontal run

T

REQUIRED
VERTICAL
RISE IN
INCHES

V

T

HORIZONTAL VENT RUN PLUS OFFSET IN FEET

H

T

The shaded area within the lines represents acceptable
values for HT and VT.

For vent configurations requiring more than one 90° elbow
the following formulas apply:

Formula 1: HT< 4.2 V

T

Formula 2: HT+ VT< 24.75 feet

H

1

Example 2:

H

2

Example 3:

90°

H

1

V

V

1

V

2

V

T

H

1

H

2

H

3

H

4

H

R

H

O

H

T

=4 ft
= 1.5 ft
= V1 + V2 = 4 + 1.5 = 5.5 ft
=2 ft
=1 ft
=1 ft
= 1.5 ft
= H1 + H2 + H3 + H4 = 2 + 1 + 1 + 1. 5 = 5.5 ft
= .03(four 90° elbows - 90°) = .03(360° - 90°) = 8.1 ft
= HR + HO = 5.5 + 8.1 = 13.6 ft

90°

1

HT + VT= 13.6 + 5.5 = 19.1 ft

Formula 1:HT < 4.2 V

T

4.2 VT = 4.2 x 5.5 = 23.1 ft

13.6 < 23.1

Formula 2:HT + VT < 24.75 feet

19.1 < 24.75

Since both formulas are met, this vent configuration is ac­ceptable.

H

2

V

2

H

3

FIGURE 8

H

4

V

1

V
H
H
H
H
H

HT + VT=

= VT = 6 ft

1

=3 ft

1

=5 ft

2

= H1 + H2 = 3 + 5 = 8 ft

R

= .03(two 90° elbows - 90°) = .03(180° - 90°) = 2.7 ft

O

= HR + HO = 8 + 2.7 = 10.7 ft

T

10.7 + 6 =16.7

Formula 1: HT < 4.2 V

90°

T

4.2 VT = 4.2 x 6 = 25.2 ft

10.7 < 25.2

Formula 2: HT + VT < 24.75 feet

16.7 < 24.75

Since both formulas are met, this vent configuration is ac­ceptable.

FIGURE 7

W415-0434 / C / 03.24.05

8

VERTICAL TERMINATION

when (HT) < (VT)

Simple venting configurations

FIGURE 9

See graph to determine the required vertical rise VT for the
required horizontal run H

.

T

40

REQUIRED
VERTICAL RISE

30

IN FEET

V

T

HORIZONTAL VENT RUN PLUS OFFSET IN FEET

20

10

3

0

5101520

H

The shaded area within the lines represents acceptable
values for HT and VT.

For vent configurations requiring more than zero 90° elbow
(top exit) or one 90° elbow (rear exit), the following formu­las apply:

Formula 1: HT< V

T

Formula 2: HT+ VT < 40 feet

T

W415-0434 / C / 03.24.05

VERTICAL TERMINATION

9

when (HT) > (VT)

Simple venting configurations

FIGURE 1 0

See graph to determine the required vertical rise VT for the
required horizontal run H

20

MAXIMUM
VERTICAL
RISE IN
FEET

V

T

19

10

3

0

5101520

.

T

25 30

HORIZONTAL VENT RUN PLUS OFFSET IN FEET

The shaded area within the lines represents acceptable
values for H

and VT.

T

For vent configurations requiring more than two 90°
elbow the following formulas apply:

Formula 1: HT< 3V

T

Formula 2: HT+ VT < 40 feet

Example 7:

90°

90°

V

1

H

1

V

2

90°

FIGURE 11

V

1

V

2

V

3

T

V

T

H

1

H

2

H

R

H

O

H

T

HT+ VT = 16.1 + 4.5 = 20.6 ft

=2 ft
=1 ft
=1.5 ft

=

V1 +

V2 +

V3=

2 + 1 + 1.5 = 4.5 ft
=6 ft

=2 ft
= H1 + H2 = 6 + 2 = 8 ft
= .03(four 90° elbows - 90°)
= .03(90 + 90 + 90 + 90 - 90) = 8.1 ft

=

HR +

HO= 8 + 8.1 = 16.1 ft

H

V

3

2

90°

Formula 1:

HT< 3V

T

3VT=

3 x

4.5 = 13.5 ft

16.1 > 13.5

Since this formula is not met, this vent configuration is

unacceptable

Formula 2:

.

HT+ VT < 40 feet

20.6 < 40

Since only formula 2 is met, this vent configuration is unac­ceptable and a new fireplace location or vent configuration
will need to be established to satisfy both formulas.

W415-0434 / C / 03.24.05