Bigassfans IRH Setup guide

IRH
EXCEPTIONALLY
ENGINEERED
READ AND SAVE THESE INSTRUCTIONS
Installation, Operation, and Service Manual
Installer
Please take the time to read and understand these
instructions prior to any installation. Installer must
give a copy of this manual to the owner.
Owner
Keep this manual in a safe place in order to provide
your service technician with necessary information.
BIGASSFANS.COM

WARNING
Installation must be done by a contractor qualified in the installation and service of gas-fired heating
equipment or your gas supplier.
Improper installation, adjustment, alteration, service, or maintenance can result in death, injury, or property
damage. Read the Installation, Operation, and Service Manual thoroughly before installing or servicing this
equipment.
FOR YOUR SAFETY
If you smell gas:
1. Open windows.
2. DO NOT try to light any appliance.
3. DO NOT use electrical switches.
4. DO NOT use any telephone in your building.
5. Extinguish any open flame.
6. Leave the building.
7. Immediately call your local gas supplier after leaving the building. Follow the gas supplier’s instructions.
8. If you cannot reach your gas supplier, call the Fire Department.
Fire Hazard
Keep all flammable objects, liquids, and vapors the minimum required clearances to
combustibles away from heater.
Some objects will catch fire or explode when placed close to heater.
Failure to follow these instructions can result in death, injury, or property damage.
© 2021 Delta T LLC
All rights reserved. No part of this work covered by the copyrights herein may be reproduced or copied in
any form or by any means — graphic, electronic, or mechanical, including photocopying, recording, taping, or
information storage and retrieval systems — without the written permission of Delta T LLC.

Contents
SECTION 1: HEATER SAFETY........................................................................................................................................... 1
SECTION 2: INSTALLER RESPONSIBILITY ................................................................................................................... 3
SECTION 3: CLEARANCES TO COMBUSTIBLES ....................................................................................................... 4
SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES ........................................................................ 8
SECTION 5: MAJOR COMPONENTS............................................................................................................................. 9
SECTION 6: HEATER INSTALLATION ............................................................................................................................ 12
SECTION 7: OPTIONAL HEATER ACCESSORIES ....................................................................................................... 29
SECTION 8: VENTING........................................................................................................................................................ 33
SECTION 9: GAS PIPING................................................................................................................................................... 43
SECTION 10: WIRING.......................................................................................................................................................... 45
SECTION 11: OPERATION AND MAINTENANCE......................................................................................................... 49
SECTION 12: TROUBLESHOOTING................................................................................................................................ 52
SECTION 13: REPLACEMENT PARTS ............................................................................................................................. 56
SECTION 14: GENERAL SPECIFICATIONS.................................................................................................................... 59

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SECTION 1: HEATER SAFETY
Your Safety is Important to Us! This
symbol is used throughout the
manual to notify you of possible fire,
electrical, or burn hazards. Please
pay special attention when reading
and following the warnings in these
sections.
Installation, service, and annual inspection of
heater must be done by a contractor qualified in
the installation and service of gas-fired heating
equipment. Read this manual carefully before
installation, operation, or service of this equipment.
For Indoor Installation Only. Not for use in residential
dwellings.
This heater is not certified to meet the requirements
of NFPA30A-2012 Section 7.6.6. (maximum tube
temperature of 750 °F [399 °C]). Do not install this
heater in facilities where compressed natural gas
(CNG) or liquid natural gas (LNG) are present. These
instructions, the layout drawing, local codes and
ordinances, and applicable standards that apply to
gas piping, electrical wiring, venting, etc. must be
thoroughly understood before proceeding with the
installation.
Protective gear is to be worn during installation,
operation, and service in accordance to the
Occupational Safety and Hazard Administration
(OSHA). Gear must be in accordance to NFPA
70E, latest revision when working with electrical
components. Thin sheet metal parts have sharp
edges. To prevent injury, the use of work gloves is
recommended. The use of gloves will also prevent
the transfer of body oils from the hands to the surface
of the reflector.
Before installation, check that local distribution
conditions, nature of gas and pressure, and
adjustment of the appliance are compatible.
This heater must be applied and operated under the
general concepts of reasonable use and installed
using best building practices.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a
person responsible for their safety. Children should
be supervised to ensure that they do no play with the
appliance.
For additional copies of the Installation, Operation,
and Service Manual, visit www.bigassfans.com.
1.1 Manpower Requirements
To prevent personal injury and damage to the heater,
two persons will be required for installation.
1.2 Safety Labels and Their Placement
Product safety signs or labels should be replaced by
the product user when they are no longer legible.
1.3 California Proposition 65
In accordance with California Proposition 65
requirements, a warning label must be placed
in a highly visible location on the outside of the
equipment (i.e., near equipment’s serial plate). Avoid
placing label on areas with extreme heat, cold,
corrosive chemicals, or other elements.

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FIGURE 1: Serial Number Identification Chart
2103-071-150-0456
Serial numbers are located on both the burner shipping carton and the rating plate label. Each burner will have
a unique 14-digit serial number used for identification purposes to allow the lookup of various items, such as
manufacture test records, replacement part identification, and manufactured date.
Manufactured
Year Manufactured
Month
Numerical
Model Number Burner Maximum
Firing Rate (MBH)
Numerical sequence of units
manufactured for the month
of the given product
Side Panel
Rating Plate Label

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SECTION 2: INSTALLER
RESPONSIBILITY
The installer is responsible for the following:
• To install the heater, as well as the gas and
electrical supplies, in accordance with applicable
specifications and codes. Big Ass Fans
recommends the installer contact a local Building
Inspector or Fire Marshal for guidance.
• To use the information given in a layout drawing
and in the manual together with the cited codes
and regulations to perform the installation.
• To install the heater in accordance with the
clearances to combustibles.
• To furnish all needed materials not furnished as
standard equipment.
• To plan location of supports.
• To provide access on all sides for burner servicing
and removal.
• To provide the owner with a copy of this
Installation, Operation, and Service Manual.
• To never use heater as a support for a ladder
or other access equipment and never hang or
suspend anything from heater.
• To ensure there is adequate air circulation around
the heater and to supply air for combustion,
ventilation, and distribution in accordance with
local codes.
• To safely and adequately install heater using
materials with a minimal working load of 75 lb
(33kg).
• To ensure the heater is placed in an approved
application.
2.1 Wall Tag
A wall tag is available for the heater as a
permanent reminder of the safety instructions
and the importance of the required clearances
to combustibles. Ax the tag to a wall near the
heater. Locate your the model number and install
configuration located on the burner and noted in
this manual. On the tag, write the proper clearance
dimensions in permanent ink according to your
model number and configuration in the open spaces.
Caution
Product Damage Hazard
Do not use heater in area containing corrosive
chemicals.
Refer to appropriate Material Safety Data Sheets
(MSDS).
Failure to follow these instructions can result in
product damage.
Big Ass Fans cannot be responsible for ensuring
that all appropriate safety measures are undertaken
prior to installation; this is entirely the responsibility
of the installer. It is essential that the contractor, the
sub-contractor, or the owner identifies the presence
of combustible materials, corrosive chemicals,
or halogenated hydrocarbons* anywhere in the
premises.
* Halogenated Hydrocarbons are a family of
chemical compounds characterized by the presence
of halogen elements (fluorine, chlorine, bromine,
etc.). These compounds are frequently used in
refrigerants, cleaning agents, solvents, etc. If these
compounds enter the air supply of the burner, the
lifespan of the heater components will be greatly
reduced. An outside air supply must be provided
to the burners whenever the presence of these
compounds is suspected. Warranty will be invalid if
the heater is exposed to halogenated hydrocarbons.
2.3 National Standards and Applicable
Codes
All appliances must be installed in accordance with
the latest revision of the applicable standards and
national codes. This refers also to the electric, gas,
and venting installation. Note: Additional standards
for installations in public garages, aircraft hangars,
etc. may be applicable.

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SECTION 3: CLEARANCES TO
COMBUSTIBLES
3.1 Required Clearances to Combustibles
Clearances are the required distances that
combustible objects must be away from the heater
to prevent serious fire hazards. Combustibles are
materials that may catch on fire and include common
items such as wood, paper, rubber, fabric, etc.
Maintain clearances to combustibles at all times for
safety.
Clearances for all heater models are located on the
burner of the heater and on the following pages of
this manual. Check the clearances on each burner
for the model of heater being installed to make sure
the product is suitable for your application and the
clearances are maintained. Read and follow the
safety guidelines below:
• Keep gasoline or other combustible materials
including flammable objects, liquids, dust, or vapors
away from this heater or any other appliance.
• The stated clearances to combustibles represents
a surface temperature of 90 °F (32 °C) above room
temperature. Building materials with a low heat
tolerance (such as plastics, vinyl siding, canvas,
tri-ply, etc.) may be subject to degradation at lower
temperatures. It is the installer’s responsibility to
assure that adjacent materials are protected from
degradation.
• Maintain clearances from heat-sensitive equipment
and workstations.
• Maintain clearances from vehicles parked below
the heater.
• Maintain clearances from swinging and overhead
doors, overhead cranes, vehicle lifts, partitions,
storage racks, hoists, building construction, etc.
• In locations used for the storage of combustible
materials, signs must be posted to specify the
maximum permissible stacking height to maintain
required clearances from the heater to the
combustibles. Signs must be posted adjacent to the
heater thermostat. In the absence of a thermostat,
signs must be posted in a conspicuous location.
• Consult local Fire Marshal, Fire Insurance Carrier,
or other authorities for approval of proposed
installation when there is a possibility of exposure
to combustible airborne materials or vapors.
• Hang heater in accordance to the minimum
suspension requirements shown in “FIGURE 11:
Critical Hanger Placement” on page 13.
Warning
Fire Hazard
Keep all flammable objects, liquids, and vapors
the minimum required clearances to combustibles
away from heater.
Some objects will catch fire or explode when placed
close to heater.
Failure to follow these instructions can result in
death, injury, or property damage.
• If the radiant tubes must pass through the building
structure, ensure that adequate sleeving and fire
stop is installed to prevent scorching and/or fire
hazard.

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NOTE
1. All dimensions are from the surfaces of all tubes and couplings.
2.Clearances B, C, and D can be reduced by 50% after 25 ft (7.5 m) of tubing downstream from where the burner
and burner tube connect.
FIGURE 3: One Side Reflector
IRH 80 IRH 125 IRH 150 IRH 200
A6" (16 cm) 6" (16 cm) 6" (16 cm) 8" (21 cm)
B9" (23 cm) 9" (23 cm) 9" (23 cm) 18" (46 cm)
C69" (176 cm) 82" (209 cm) 85" (216 cm) 102" (260 cm)
D54" (138 cm) 65" (166 cm) 69" (176 cm) 73" (186 cm)
FIGURE 2: Level Reflector
IRH 80 IRH 125 IRH 150 IRH 200
A6" (16 cm) 6" (16 cm) 6" (16 cm) 8" (21 cm)
B38" (97 cm) 46" (117 cm) 50" (127 cm) 52" (133 cm)
C65" (166 cm) 76" (194 cm) 79" (201 cm) 96" (244 cm)
D38" (97 cm) 46" (117 cm) 50" (127 cm) 52" (133 cm)
FIGURE 4: Two Side Reflectors
IRH 80 IRH 125 IRH 150 IRH 200
A6" (16 cm) 6" (16 cm) 6" (16 cm) 8" (21 cm)
B25" (64 cm) 32" (82 cm) 35" (89 cm) 40" (102 cm)
C71" (181 cm) 83" (211 cm) 87" (221 cm) 102" (260 cm)
D25" (64 cm) 32" (82 cm) 35" (89 cm) 40" (102 cm)

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NOTE
1. All dimensions are from the surfaces of all tubes and couplings.
2.Clearances B, C, and D can be reduced by 50% after 25 ft (7.5 m) of tubing downstream from where the burner
and burner tube connect.
FIGURE 5: 45° Tilt Reflector
IRH 80 IRH 125 IRH 150 IRH 200
A8" (21 cm) 10" (26 cm) 12" (31 cm) 12" (31 cm)
B8" (21 cm) 8" (21 cm) 8" (21 cm) 10" (26 cm)
C65" (166 cm) 77" (196 cm) 83" (211 cm) 85" (216 cm)
D60" (153 cm) 69" (176 cm) 74" (188 cm) 79" (201 cm)
FIGURE 6: U-Tube, Standard Reflector
IRH 80 IRH 125 IRH 150 IRH 200
A6" (16 cm) 6" (16 cm) 6" (16 cm) 8" (21 cm)
B38" (97 cm) 46" (117 cm) 50" (127 cm) 54" (138 cm)
C68" (173 cm) 78" (199 cm) 83" (211 cm) 102" (260 cm)
D37" (94 cm) 43" (110 cm) 47" (120 cm) 51" (130 cm)
FIGURE 7: U-Tube, 45°
IRH 80 IRH 125 IRH 150 IRH 200
A8" (21 cm) 8" (21 cm) 8" (21 cm) 8" (21 cm)
B8" (21 cm) 8" (21 cm) 8" (21 cm) 8" (21 cm)
C65" (166 cm) 77" (199 cm) 83" (211 cm) 85" (216 cm)
D46" (117 cm) 61" (155 cm) 66" (168 cm) 70" (178 cm)

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NOTE
1. All dimensions are from the surfaces of all tubes and couplings.
2.Clearances B, C, and D can be reduced by 50% after 25 ft (7.5 m) of tubing downstream from where the burner
and burner tube connect.
Unvented
Vented
Radiant Tubes
Vent
Pipes
FIGURE 8: U-Tube, Opposite 45° Reflector
IRH 80 IRH 125 IRH 150 IRH 200
A8" (21 cm) 10" (26 cm) 12" (31 cm) 12" (31 cm)
B60" (153 cm) 70" (178 cm) 74" (188 cm) 76" (194 cm)
C65" (166 cm) 77" (196 cm) 83" (211 cm) 85" (216 cm)
D22" (56 cm) 22" (56 cm) 22" (56 cm) 22" (56 cm)
FIGURE 9: Venting
IRH 80 IRH 125 IRH 150 IRH 200
A20" (51 cm) 20" (51 cm) 20" (51 cm) 20" (51 cm)
E24" (61 cm) 24" (61 cm) 30" (77 cm) 30" (77 cm)
F18" (46 cm) 18" (46 cm) 18" (46 cm) 18" (46 cm)

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SECTION 4: NATIONAL
STANDARDS AND APPLICABLE
CODES
4.1 Gas Codes
Type of gas appearing on the nameplate must be
the type of gas used. Installation must comply with
national and local codes and requirements of the
local gas company.
United States: Refer to National Fuel Gas Code NFPA
54/ANSI Z223.1 – latest revision.
Canada: Refer to Natural Gas and Propane
Installation Code CSA B149.1 – latest revision.
4.2 Aircraft Hangars
Installation in aircraft hangars must be in accordance
with the following codes:
United States: Refer to Standard for Aircraft Hangars,
NFPA 409 – latest revision.
Canada: Refer to Natural Gas and Propane
Installation Code CSA B149.1 – latest revision.
In aircraft storage and servicing areas, heaters shall
be installed at least 10 ft (3 m) above the upper
surface of wings or of engine enclosures of the
highest aircraft which may be housed in the hangar.
The measurement shall be made from the wing or
engine enclosure (whichever is higher from the floor)
to the bottom of the heater.
• In shops, oces, and other sections of aircraft
hangars communicating with aircraft storage or
servicing areas, heaters shall be installed not less
than 8 ft (2.4 m) above the floor.
• Suspended or elevated heaters shall be so located
in all spaces of aircraft hangars that they shall not
be subject to injury by aircraft, cranes, movable
scaolding, or other objects. Provisions shall be
made to assure accessibility to suspended heaters
for recurrent maintenance purposes.
4.3 Public Garages
Installation in garages must be in accordance with
the following codes:
United States: Refer to Standard for Parking
Structures NFPA 88A – latest revision or the Code for
Motor Fuel Dispensing Facilities and Repair Garages,
NFPA 30A – latest revision.
Canada: Refer to Natural Gas and Propane
Installation Code CSA B149.1 – latest revision.
• Heaters must not be installed less than 8 ft
(2.4m) above the floor. Minimum clearances to
combustibles must be maintained from vehicles
parked below the heater.
• When installed over hoists, minimum clearances
to combustibles must be maintained from the
uppermost point of objects on the hoist.
4.4 Electrical
Heater must be electrically grounded in accordance
with the following codes:
United States: Refer to National Electrical Code®,
NFPA 70 – latest revision. Wiring must conform
to the most current National Electrical Code, local
ordinances, and any special diagrams furnished.
Canada: Refer to Canadian Electrical Code, CSA
C22.1 Part 1 – latest revision.
4.5 Venting
Venting must be installed in accordance with the
requirements within this manual and the following
codes:
United States: Refer to National Fuel Gas Code NFPA
54/ANSI Z223.1 – latest revision.
Canada: Refer to Natural Gas and Propane
Installation Code CSA B149.1 – latest revision.
4.6 High Altitude
These heaters are approved for installations up to
2,000 ft (610 m) (US), 4,500 ft (1,370 m) (Canada)
without modification. Consult Big Ass Fans if US
installation is above 2,000 ft (610 m) or Canadian
installation is above 4,500 ft (1,370 m).

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SECTION 5: MAJOR COMPONENTS
FIGURE 10: Major Component Descriptions — Standard Reflector
Burner with Tube Gasket
Must be installed with the
flame observation window
facing down.
Burner Tube
Supplied in 10 ft (3 m)
lengths. Burner tube is
always the first tube after
the burner.
Tube and Reflector Hanger
with Clamp Package
Position this hanger no
more than 4" (10 cm) away
from the burner.
Flex Gas Line with Shut-o
Cock
Reflector Support Strap
and Wire Form
Tube and Reflector Hanger
Suspend system from these
hangers.
Turbulator/Swirler
Vent Adapter
Reflector End Cap
Punch out center section to
accommodate tube.
Coupling Assembly with
Lock
Tube
Heat treated aluminized
tube supplied in 10 ft (3 m)
lengths.
Standard Reflector
(Aluminum)
Alternate overlap as shown
in “FIGURE 13: Linear Heater
Layout Overview” on page
15. Minimum overlap is 6"
(16 cm).

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5.1 Standard Parts List
Table 1: Contents of Burner Carton
Table 2: Contents of Standard Core and Extension Packages
* Canadian models: Rubber (Type 1) Gas Hoses available as an accessory.
**Contents located in box separate from the burner.
Part No. Description IRH 80 IRH 125 IRH 150 IRH 200
BF71XXXXX Burner (Rate and Fuel Varies) 1 1 1 1
90709700 Blower Assembly with Cord 1 1 1 1
02568200 Gasket (Burner to Burner Tube) 1 1 1 1
90709801 Gasket (Blower to Burner) 1 1 1 1
91201708 Pipe Nipple (Black) 1/2" NPT x 4" 1 1 1 1
94273914 Hex Head Bolts 5/16"-18 Rolok 4 4 4 4
96411600 Split Lock Washer 4 4 4 4
*91412200 Flexible Stainless Steel Gas Hose, 1/2" NPT (US Models Only) 1 1 - -
*91412203 Flexible Stainless Steel Gas Hose, 3/4" NPT (US Models Only) - - 1 1
91907302 S-Hooks 2 2 2 2
91911700 Outside Air Flue Collar 1 1 1 1
94118106 #8 x 3/8 Hex Washer Head (for Outside Air Collar) 3 3 3 3
92311800 Lock Nuts #10-32 4 4 4 4
03051501 Turbulator Adapter 1 - - -
03051502 Turbulator 2.5 ft (76 cm), Aluminized Steel 4 - - -
**03051509K Swirler Package — 10 ft (3 m) (Contains Qty 2 62" Swirlers) - - 1 1
**03051511K Swirler Package — 20 ft (6 m) (Contains Qty 4 62" Swirlers) - 1 - -
Core Packages
(Aluminized)
Extension Packages
(Aluminized)
Part No. Description 10 ft
(3 m)
20 ft
(6 m)
30 ft
(9 m)
40 ft
(12 m)
10 ft
(3 m)
20 ft
(6 m)
30 ft
(9 m)
40 ft
(12 m)
91409408 Tube, HT Aluminized, 10 ft (3 m) - 1 2 3 1 2 3 4
03051101 Burner Tube, ALUMI-THERM® Steel, 10 ft (3 m) - - 1 1 - - - -
03051601 Burner Tube, HT ALUMI-THERM® Steel, 10 ft (3 m) 1 1 - - - - - -
01312700 Coupling Assembly - 1 2 3 1 2 3 4
02750303 Standard Reflector, 8 ft (3.5 m) 2 3 4 6 2 3 4 6
02750800 End Cap 2 2 2 2 - - - -
03090100 Tube and Reflector Hanger 2 3 4 5 1 2 3 4
91907302 S-Hook 2 3 4 5 1 2 3 4
03050010 Reflector Support Package (Strap, Wire Form, Screws) 1 2 3 5 2 3 4 6
91107720 U-Clip Package 1 1 1 1 1 1 1 1
90502701 Vent Adapter 1 1 1 1 - - - -
01318901 Tube Clamp Package 1 1 1 1 - - - -
Part Number
CP10ALUM
CP20ALUM
CP30ALUM
CP40ALUM
EXP10ALUM
EXP20ALUM
EXP30ALUM
EXP40ALUM

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Table 3: Component Package Guide — Standard Reflector
Model Tubing Length Aluminized Core Packages
IRH 80 20 ft (6 m) CP20ALUM
IRH 125 30 ft (9 m) CP30ALUM
IRH 150 40 ft (12 m) CP40ALUM
IRH 200 50 ft (15 m) CP30ALUM + EXP20ALUM

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SECTION 6: HEATER
INSTALLATION
Warning
Severe Injury Hazard
Secure burner to burner tube with nuts and lock
washers.
Hang heater with materials with a minimum
working load of 75 lb (33 kg).
Failure to follow these instructions can result in
death, injury, or property damage.
Warning
Cut/Pinch Hazard
Wear protective gear during installation, operation,
and service.
Edges are sharp.
Failure to follow these instructions can result in
injury.
To ensure your safety and comply with the terms of
the warranty, all units must be installed in accordance
with these instructions.
The gas or the electrical supply lines must not be
used to support the heater.
Do not locate the gas or electric supply lines directly
over the path of the flue products from the heater.
The heater must be installed in a location that it is
readily accessible for servicing.
The heaters must be installed in accordance with
clearances to combustibles as indicated on the rating
plate and in this instruction manual.
The minimum and maximum gas inlet pressures must
be maintained as indicated on the rating plate.
Typical installation configurations are shown in
“FIGURE 11: Critical Hanger Placement” on page
13.
Expansion and contraction of the tube dictates that
the minimum suspension lengths must be maintained.
See table below “FIGURE 11: Critical Hanger
Placement” on page 13.

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FIGURE 11: Critical Hanger Placement
Run Length Typical Expansion Minimum “X” Length
10–50 ft (3–15.2 m) ±1 in. (3 cm) 12 in. (30.5 cm)
Typical Suspension Details
Beam Clamp Concrete Beam
Wood Beam
Locknut
Anchor
Screw Hook
3/8"
Rod 3/8"
“X”*
Chain Size
3/16" Minimum
S-hooks
24" min.*
(61 cm)
Turnbuckle
not included *Allows for thermal expansion of system
Washers
Side View
S-hooks
Hanger
Reflector
Front ViewMust be within 4" (10 cm) 45°Angle
Hanger
Description
S-Hook
Tube/Reflector Hanger
NOTE: Suspension material provided by others.

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FIGURE 12: Linear Heater Assembly Overview
Reflector End Cap
Burner
Tube Clamp Package
Burner Tube
Tube and Reflector Hanger
Coupling
Reflector Support
Reflector
Tube
Turbulator/Swirler
Vent Adapter
U-Clips

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FIGURE 13: Linear Heater Layout Overview
LEGEND
Burner
Reflector
Tube
Tube/Reflector
Hanger
Coupling Assembly
Vent Adapter
a = 14" (36 cm)
Reflector width (not shown)
b = 2" (5 cm)
End cap to burner
c = 2" (5 cm)
End cap to hanger
d = 7' 6" (2.3 m)
Distance first hanger
e = 10' (3 m)
Distance between hangers
f = 12.5" (32 cm)
Burner height
g = 11" (28 cm)
Burner length
20 ft (6.1 m) Tube Length
30 ft (9.1 m) Tube Length
40 ft (12.2 m) Tube Length
50 ft (15.2 m) Tube Length

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Step 6.1 Burner Tube Installation
Note: Tubing requires a downward slope of 1/2" (13 mm) per 20 ft (6 m) away from burner.
Description
Burner Tube
S-Hook
Tube/Reflector Hanger
Oset mounting
hole must be to
the top.
S-Hook
Hanger
Burner Tube
7' 6" ± 1'
(229 cm ± 25 cm)
Weld seam must
be to the bottom
of the tube.