DURA HEAT GFA40 Propane Construction Heater User Manual

: June 17, 2024
: Dura Heat

DURA HEAT GFA40 Propane Construction Heater

DURA-HEAT-GFA40-Propane-Construction-Heater-product

Product Information

The Propane Construction Heater is a direct-fired forced air construction heater designed and approved for use as a temporary heating solution for buildings or structures under construction, alteration, or repair. It is available in various models with different BTU ratings to suit different heating needs. The heater is certified by ANS Z83.7-2011 CSA 2.14-2011 standards and requires proper ventilation for safe operation.

Specifications:

Models: GFA40, GFA50A, GFA60A, GFA100A, GFA125A, GFA150A
BTU/HR: 40,000 (GFA40), 30,000/50,000 (GFA50A), 30,000/60,000 (GFA60A), 70,000/100,000 (GFA100A), 70,000/125,000 (GFA125A), 120,000/150,000 (GFA150A)
Forced-air
ANS Z83.7-2011 CSA 2.14-2011 Certified
Adequate ventilation must be provided

General Hazard Warning:
Failure to comply with the precautions and instructions provided with this heater can result in death, serious bodily injury, property loss, fire hazards, explosions, burns, asphyxiation, carbon monoxide poisoning, and electrical shock. Only individuals who can understand and follow the instructions should use or service this heater. If assistance or additional information is needed, contact the manufacturer.

Product Usage Instructions

Safety Precautions:

Keep solid combustibles (such as building materials, paper, or cardboard) at a safe distance from the heater as recommended in the instructions.
Do not use the heater in spaces that contain or may contain volatile or airborne combustibles, gasoline, solvents, paint thinners, dust particles, or unknown chemicals.
Using the heater in a residential garage requires proper positioning.
Construction heaters are not suitable for use in garages in Canada.
Not intended for home or recreational vehicle use.
Never leave the heater unattended while burning.

Operating Instructions:

Read the user’s manual carefully and completely before operating or servicing the heater.
Ensure proper ventilation is available in the area where the heater will be used.
Connect the propane gas supply to the heater following the manufacturer’s instructions.
Check for any gas leaks using a soapy water solution. If a leak is detected, do not use the heater and seek professional assistance.
Ensure the heater is placed on a stable and level surface away from any flammable materials.
Turn the heater’s power switch to the “Off” position before connecting it to a power source.
Connect the heater to a grounded electrical outlet using the provided power cord.
Follow the specific lighting instructions provided for your model to safely ignite the heater.
Once ignited, adjust the heat output and fan speed as needed using the controls provided.
Monitor the heater during operation and ensure it is not left unattended.
When finished, turn off the heater’s power switch and disconnect it from the power source.

Frequently Asked Questions (FAQ):

Q: Can I use this heater in my garage?
A: This heater is not suitable for use in garages in Canada. However, if you plan to use it in a residential garage, make sure to follow the proper positioning instructions provided.
Q: Is this heater safe for home or recreational vehicle use?
A: No, this heater is not intended for home or recreational vehicle use.
Q: What should I do if I detect a gas leak?
A: If a gas leak is detected, do not use the heater. Seek professional assistance to address the issue.
Q: How do I adjust the heat output and fan speed?
A: The specific controls for adjusting heat output and fan speed may vary by model. Please refer to the user manual provided with your specific model for detailed instructions.

DURAHEAT MODELS

GFA40 (40,000 BTU/HR, FORCED – AIR)
GFA50A (30,000/50,000 BTU/HR, FORCED – AIR)
GFA60A (30,000/60,000 BTU/HR, FORCED – AIR)
GFA100A (70,000/100,000 BTU/HR, FORCED – AIR)
GFA125A (70,000/125,000 BTU/HR, FORCED – AIR)
GFA150A (120,000/150,000 BTU/HR, FORCED – AIR)

ANS Z83.7-2011 CSA 2.14-2011
Adequate ventilation must be provided.

GENERAL HAZARD WARNING

FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUCTIONS PROVIDED WITH THIS HEATER, CAN RESULT IN DEATH, SERIOUS BODILY INJURY AND PROPERTY LOSS, OR DAMAGE FROM THE HAZARDS OF FIRE, EXPLOSION, OR BURN. ASPHYXIATION, CARBON MONOXIDE POISONING, AND/OR ELECTRICAL SHOCK.
ONLY PERSONS WHO CAN UNDERSTAND AND FOLLOW THE INSTRUCTIONS SHOULD USE OR SERVICE THIS HEATER.
IF YOU NEED ASSISTANCE OR HEATER INFORMATION SUCH AS AN INSTRUCTION MANUAL, LABELS, ETC., CONTACT THE MANUFACTURER.

WARNING:

FIRE, BURN, INHALATION, AND EXPLOSION HAZARDS, KEEP SOLID COMBUSTIBLES, SUCH AS BUILDING MATERIALS, PAPER OR CARDBOARD, A SAFE DISTANCE AWAY FROM THE HEATER AS RECOMMENDED BY THE INSTRUCTIONS.
NEVER USE THE HEATER IN SPACES THAT DO OR MAY CONTAIN VOLATILE OR AIRBORNE COMBUSTIBLES, OR PRODUCTS SUCH AS GASOLINE, SOLVENTS, PAINT THINNERS, DUST PARTICLES OR UNKNOWN CHEMICALS.

CALIFORNIA PROPOSITION 65:
Fuels used in gas or oil-fired appliances and the products of combustion of such fuels contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. This product contains chemicals, including lead and lead compounds, known to the State of California to cause cancer, birth defects or other reproductive harm. Wash hands after handling.

WARNING:
Using this heater in a residential garage requires that the heater is positioned so that it is protected against any possible damage by a moving vehicle, etc. It must be positioned so that the base of the heater is no less than 18 in (450 mm) above the garage floor or 8 ft (2450 mm) in repair garages. The heater must be placed on a stable surface. Do not place it on a chair, ladder, etc. Raising the heater will reduce BUT NOT eliminate the possibility of lighting the vapor of any flammable liquids which may be improperly stored or accidentally spilled. If the smell of gasoline is present, DO NOT operate this heater until the area has been properly ventilated.

WARNING:
CONSTRUCTION HEATERS ARE NOT FOR USE IN GARAGES IN CANADA.

WARNING:
NOT FOR HOME OR RECREATIONAL VEHICLE USE.

The heater is designed and approved for use as a construction heater under ANS Z83.7 CSA 2.14. It is hard to anticipate every use that may be made of this heater. CHECK WITH YOUR LOCAL FIRE SAFETY AUTHORITY IF YOU HAVE QUESTIONS ABOUT APPLICATIONS.

Other standards govern the use of fuel gases and heat-producing products in specific applications.
Your local authority can advise you about these.

IMPORTANT:
READ THIS USER’S MANUAL CAREFULLY AND COMPLETELY BEFORE TRYING TO OPERATE OR SERVICE THIS HEATER. IMPROPER USE OF THIS HEATER CAN CAUSE SERIOUS INJURY OR DEATH FROM FIRE, EXPLOSION AND CARBON MONOXIDE POISONING.

This is a direct-fired forced-air construction heater for either indoor construction or outdoor use. Its intended use is primarily the temporary heating of buildings or structures under construction, alteration or repair. All the products of combustion generated by the heater are forced through the heater and released into the area being heated. This heater operates at approximately 98%+ combustion efficiency but still produces a small amount of carbon monoxide. Humans can tolerate small amounts of carbon monoxide for short periods. Carbon monoxide can build up in a heated space and failure to provide adequate ventilation could result in poisoning or death.

WARNING: NOT FOR USE WITH DUCT WORK.

SPECIFICATIONS

__

Input Rating

| __

40,000 BTU/hr

| 30,000 BTU/hr

50,000 BTU/hr

| 30,000 BTU/hr

60,000 BTU/hr

| 70,000 BTU/hr

100,000 BTU/hr

| 70,000 BTU/hr

125,000 BTU/hr

| 70,000 BTU/hr

125,000 BTU/hr

| 120,000 BTU/hr

150,000 BTU/hr

---|---|---|---|---|---|---|---
__

Type of Gas

| __

Propane

| __

Propane

| __

Propane

| __

Propane

| __

Propane

| __

Propane

| __

Propane

Gas Supply Pressure to Regulator Maximum| __

Cylinder Pressure

| __

Cylinder Pressure

| __

Cylinder Pressure

| __

Cylinder Pressure

| __

Cylinder Pressure

| __

Cylinder Pressure

| __

Cylinder Pressure

__

Minimum (for purpose of Input Adjustment)

| __

5psig

| __

5psig

| __

5psig

| __

5psig

| __

5psig

| __

5psig

| __

5psig

__

Manifold Pressure

| __

11″ W.C

| __

11″ W.C

| __

11″ W.C

| __

11″ W.C

| __

11″ W.C

| __

11″ W.C

| __

11″ W.C

__

Gas Consumption

| __

1.9lbs/hr 0.86 kg/hr

| 1.4lbs/hr 0.63 kg/hr

2.3lbs/hr 1.04 kg/hr

| 1.4lbs/hr 0.63 kg/hr

2.8lbs/hr 1.27 kg/hr

| 3.3lbs/hr 1.5 kg/hr

4.6lbs/hr 2.09 kg/hr

| 3.3lbs/hr 1.5 kg/hr

5.8lbs/hr 2.63 kg/hr

| 3.3lbs/hr 1.5 kg/hr

5.8lbs/hr 2.63 kg/hr

| 5.6lbs/hr 2.54 kg/hr

7.0lbs/hr 3,18 kg/hr

__

Electrical Input

| __

120V, 60Hz, 1Ø

| __

120V, 60Hz, 1Ø

| __

120V, 60Hz, 1Ø

| __

120V, 60Hz, 1Ø

| __

120V, 60Hz, 1Ø

| __

120V, 60Hz, 1Ø

| __

120V, 60Hz, 1Ø

__

Amperage

| __

Load

| __

0.68amps

| __

0.65amps

| __

0.65amps

| __

0.7amps

| __

0.7amps

| __

0.7amps

| __

0.7amps

__

Fan

Ignition

| __

Piezo/Manual Spark

| __

Continuous Spark

| __

Continuous Spark

| __

Continuous Spark

| __

Continuous Spark

| __

Continuous Spark

| __

Continuous Spark

__

Spark Gap

| __

0.16″ (4mm)

| __

0.16″ (4mm)

| __

0.16″ (4mm)

| __

0.16″ (4mm)

| __

0.16″ (4mm)

| __

0.16″ (4mm)

| __

0.11″ (2.8mm)

__

Size (LxWxH)

| 19.3″x8.3″x15.2″ (49.0×21.1×38.6)cm| 19.3″x8.3″x15.2″ (49.0×21.1×38.6)cm| 19.3″x8.3″x15.2″ (49.0×21.1×38.6)cm| 25.6″x12.7″x15.6″

(65.0×32.3×39.6)cm 25.6″x11.8″x16.1″

| 26.6″x13.0″x17.3″

(67.6×33.0x43.9)cm 25.6″x11.8″x16.1″

| 26.2″x11.5″x17.2″

(66.6×29.2×43.6)cm 25.6″x12.7″x15.6″

| 25.6″x11.8″x16.1″ (65.0×30.0x40.9)cm

GENERAL SAFETY INSTRUCTION

Accidents are always tragic especially because so many of them could have been prevented with little care and judgment. There are some basic good practices, we hope you will follow for safe use of your heater.

IMPORTANT SAFETY INSTRUCTION

Children should be carefully supervised, when they are in the area.
Always maintain proper clearance from combustible materials. Minimum clearance from combustibles: Side – 24” (61 cm); Top – 36” (92 cm); Front – 72” (183 cm). Floor – combustible. Not for use on finished floors.
The heater must be placed on a level and stable surface.
Never place anything including clothes or other flammable items on the heater.
The appliance area shall be kept clear and free from combustible materials, gasoline and other flammable vapours and liquids.
Do not modify or operate a heater that has been modified.
Adequate clearance for accessibility and for combustion & ventilation air supply must be maintained at all times when the heater is operating.
Service and repair should be done by a qualified service person. The heater should be inspected before each use and at least annually by a qualified person. More frequent cleaning may be required as necessary. Do not service while hot or operating.
Never connect the heater to an unregulated gas supply.
The heater is shipped from the factory for LP(Propane) gas. This heater is for use with propane gas only, do not convert the heater to any other gas. Installation must conform to local codes or, in the absence of local codes, with the standard for the Storage and Handling of Liquefied Petroleum Gases ANSI/NFPA 58 and the Natural Gas and Propane Installation Code CSA B149.1
The minimum and maximum inlet pressures to the regulator from the gas tank are 5 psi and bottle pressure, respectively. Use only the regulator & hose assembly provided with the heater. Inspect the regulator/hose assembly prior to each use of the heater. If there is excessive abrasion or wear, or the hose is cut, replace it with the regulator/hose assembly listed on the parts list prior to using this heater.
Gas supply connections should be checked using a 50/50 solution of liquid dish soap and never use a flame to check for gas leaks.
The electrical connection & grounding must comply with the National Electrical Code. ANSI/NFPA 70 or in Canada CSA C22.1, Canadian Electrical Code, Part 1. Use only a properly grounded three (3) prong receptacle.
Do not restrict the inlet or outlet by any means. The flow of combustion and ventilation air is not to be obstructed.
This heater should not be directed toward any propane-gas container within 20 ft (6M). The heater must be located at least 6 ft. (1.83 m) in the U.S.; or (ii) 10 ft. (3 m) in Canada, from any propane gas container.
The propane cylinder supply system must be arranged to provide for vapour withdrawal from the operating cylinder.
This heater is not to be used with external thermostats, timers or other devices that control or alter the electrical supply to the heater.

WARNING:
Motor and fan must be running before lighting, during operation and at shutdown, to prevent a flame-out condition which could result in personal injury or property damage.

PRODUCT FEATURES

Portable & Stable
Wind Resistant & Rain Protected
Continuous Spark Ignition or Piezo Electric Spark Ignition
100% Safety Shutoff System
Continuous Adjustable Input Ratings (Except FA40)

UNPACKING HEATER

Remove the heater from the carton.
Remove all protective packing applied to the heater for shipment.
Retain cartons and packaging material until the unit is operated and found in good condition.
Check the heater for any shipping damage. If the heater shows any external or internal damage, promptly inform the dealer/distributor where you purchased the heater.

Assembly Components and Instructions for Steel Base Units:

Tools required for assembly:

All Models: Adjustable Wrench
FA100 – FA150: Phillips Head Screw Driver

Contents:

All Models: Unit, Manual, Hose and Regulator Assembly
FA100 – FA150 Series Includes: 2 Cord Wrap Attachments, 4 Screws (ST3.5×10)

Assembly Time:
5 Minutes

Assembling the Cord Wrap Attachments: (FA100 – FA150 Series Only)

Parts Required:
4 Screws (ST3.5×10), and 2 Cord Wrap Attachments

Place the cord wrap attachment as shown, then use a Phillips screwdriver to tighten the screws and secure the cord wrap attachments.

Regulator and Hose Connection: (All Models)
See figure on right. Connect the hose tightly to the heater using a wrench. Please also refer to page 8 in the manual.

$DURA-HEAT-GFA40-Propane-Construction-Heater-fig- $2$$

Size & Capacity Of Propane Cylinders

*INFORMATION ON SIZE CAPACITY OF PROPANE GAS CYLINDERS:**

The chart below shows the number and size of propane tanks needed to run this heater.
Less gas is vaporized at lower temperatures.

You may need two or more 100-pound (45 kg) tanks or one larger tank in colder weather. (See the parts list for your model of heater to get the specified regulator assembly.)

Temperature (°F-°C) at

tank

| Number of Tanks
---|---
40,000-60,000 BTU/h| 100,000 –

125,000 BTU/h

| 150,000 BTU/h
Above

32°F (0°C)

The propane (LP) gas tank must also be equipped with the following:

A collar to protect the Propane gas valve.
A shutoff valve terminating a Propane gas cylinder valve outlet as specified in the American National Standards for Compressed Gas Cylinder Valve Outlets and Inlet Connections.
A safety relief valve having direct communications with the vapour space of the tank.
An arrangement of vapour withdrawal.

The propane (LP) gas pressure regulator and hose assembly supplied with this heater must be used without alteration.
The hose assembly shall be visually inspected before each use of the heater. If it is evident that there is excessive abrasion or wear, or the hose is cut, it must be replaced before the heater being put into operation. The replacement hose assembly shall be that specified by the manufacturer.

INSTALLATION OF THE PROPANE GAS TANK

IMPORTANT:
You must use a propane/LP gas supply cylinder that is compatible with the connection device provided with the hose and regulator.

$DURA-HEAT-GFA40-Propane-Construction-Heater-fig- $3$$

Provide propane/LP supply system. Ensure that the valve on the cylinder is fully closed by turning the knob fully clockwise ( ). Ensure that the cylinder is fully upright for vapour withdrawal. (see size/capacity).
Connect hose to heater inlet. Tighten firmly using a wrench. You must use the regulator supplied with the heater.
Connect fuel gas fitting hose/regulator assembly to propane LP tank(s).
For units with a POL fitting (see Figure 1) turn the fuel fitting counterclockwise into threads on the tank. Tighten firmly using a wrench. Some models have a hand wheel that can be used to tighten the fitting. This hand wheel can be slid off of the nut so that a wrench can also be used to tighten the fitting. IMPORTANT: Position the regulator so that the hose leaving the regulator is in a horizontal position.
For units with a QCC fitting (see Figure 2) turn the QCC gas fitting clockwise onto threads on the tank. Tighten firmly using your hand (DO NOT USE A WRENCH).
IMPORTANT: Position the regulator so that the regulator vent is pointing down toward the floor and the arrow on the regulator is visible.
Open the propane/LP supply valve on the propane/LP tank(s) slowly.
NOTE: If not opened slowly, the excess flow device in the regulator may stop gas flow. If this happens, close the propane/LP supply valve, wait one minute (or until you hear a click) and open it again slowly.
Check all connections for leaks. Apply a 50/50 solution of liquid dish soap and water to gas joints. Bubbles forming show a leak that must be corrected.
Close the propane / LP supply valve before attempting to repair the connection.

WARNING:
Purging and filling of LP gas tanks must be performed by personnel who have been thoroughly trained in accepted LP gas industry procedures. Failure to follow these instructions may result in explosion, fire, severe personal injury, or death.

REFILLING THE PROPANE GAS TANK
ALL NEW CYLINDERS MUST BE PURGED BEFORE THE FIRST FILLING.

Turn the heater gas valve knob and gas tank valve to OFF position.
The propane tank valve equipped with the old-style fitting has LEFT-HANDED THREADS. Turn POL fitting CLOCKWISE to loosen. Protect POL fitting when disconnected from the tank.
Have the tank filled by your local Propane gas supplier.
Fasten the full Propane tank and connect the POL fitting to the tank valve by turning COUNTERCLOCKWISE.
With the heater gas valve knob still in the OFF position, turn ON the tank valve and check for leaks with soap solution.

PROPANE SAFETY
Propane is safe to use when properly handled. Careless handling of the Propane gas tank could result in fire and/or an explosion. Therefore:

Always keep the tank/cylinder securely fastened in an upright position.
Avoid tipping the tank on its side when connected to a regulator since this may cause damage to the diaphragm in the regulator.
Handle valves with care.
Never connect an unregulated Propane tank to a construction heater.
Do not subject the Propane tank to excessive heat.
Tightly close the gas shutoff valve on the Propane tank after each use.
The POL fitting must be protected when disconnected from the propane tank.
Never store a Propane gas tank inside a building or in the vicinity of any gas-burning appliance.

THE DISCONNECTED TANK MUST NEVER BE STORED IN A BUILDING, GARAGE OR ANY OTHER ENCLOSED AREA.

LEAK CHECKING

Check all gas connections with a soap solution to be sure they are tight and leakproof.

The installation of your heater must meet all local codes and/or gas utility requirements or, in the absence of local codes, with the Storage and Handling of Liquefied Petroleum Gases, ANSI/ NFPA 58 and the Natural and Propane Installation Code, CSA B149.1.
The minimum clearances to combustible construction: Side – 24” (61 cm); Top – 36” (92 cm); Front – 72” (183 cm); Floor – combustible, must be maintained at all times.
The hose assembly should be visually inspected before each use of the heater. If it is evident that there is excessive abrasion or wear, or the hose is cut, it must be replaced prior to the heater being put into operation.
The replacement hose assembly shall be that specified by the manufacturer (Refer to parts list).

LIGHTING INSTRUCTIONS

WARNING:
The motor and fan must be running before lighting, during operation and shutdown, to prevent a flame-out condition which could result in personal injury or property damage. NOTE: This heater uses a continuous spark ignition system. This unit will continue to make a clicking/ticking sound at all times before ignition, after ignition and during operation, regardless of valve knob positioning.

Connect the power cord to a properly grounded three (3) prong 120V, 60Hz, single-phase receptacle.
Turn the gas valve knob clockwise to the OFF o position.
Wait five (5) minutes to clear any gas. Then smell for gas, if you don’t smell gas, go to the next step.
Turn the gas supply ON by turning the Propane tank valve counterclockwise .
Push in and turn the gas control knob counterclockwise to “LOW/IGN”. This will light the burner. If needed, keep pressing the control knob until the burner lights and keep depressing and turning from OFF o to LOW/IGN on Piezo electric spark models. (“HIGH/IGN”: In the case of the FA40 series)
Keep the valve knob depressed for at least 30 seconds after lighting the burner. After 30 seconds release the valve knob.
If the burner does not stay lit, repeat the lighting procedure.
When the burner is lit, turn the gas valve knob counterclockwise to the desired setting. (All models, except FA40 series).

SHUTDOWN INSTRUCTIONS

WARNING:
Motor and fan must be running before lighting, during operation and at shutdown, to prevent a flame-out condition which could result in personal injury or property damage.

Turn the gas valve knob clockwise to the OFF o position.
Turn the gas supply OFF by turning the Propane tank valve clockwise to close.
Disconnect the power cord once the heater has cooled to ambient temperature.

TEST FIRING HEATER
Test fire your construction heater, following the lighting instructions applicable to the gas control system employed. Leak test all gas connections with soap solution. Soap bubbles indicate gas leakage. DO NOT use a match or flame to test for gas leaks.

STORAGE
Never store a Propane gas tank inside a building or in the vicinity of any gas or oil-burning appliance. When the Propane tank is not disconnected from the construction heater, the gas tank and heater must be stored outdoors in a well-ventilated area, out of the reach of children. If for any reason the heater is to be stored indoors, the tank must be disconnected and stored outdoors in a well-ventilated area out of reach of children, under the standard for the Storage and Handling of Liquefied Petroleum Gases, ANSI / NFPA 58 and CSA B149.1, Natural Gas and Propane Installation Code. The plastic tank valve plug supplied with your tank must be tightly installed when the tank is disconnected from the heater.

MAINTENANCE INSTRUCTIONS

Turn the unit off, allow the heater to fully cool and disconnect the propane hose before performing any Maintenance functions. Unplug the unit from the 120V receptacle.
Keep the unit clean and keep the inside of the torpedo housing debris-free.
Have the unit checked by a qualified technician at least once a year, preferably before the heating season.

REPLACEMENT PARTS

Warning:
Use only original replacement parts. This Heater must use design-specific parts. Do not substitute or use generic parts. Improper replacement parts could cause serious or fatal injuries.

This will also protect your warranty coverage for parts replaced under warranty.
Parts warranty and non-warranty: Contact authorized dealers of this product. If they can not supply original replacement part(s), either contact your nearest Parts Central or World Marketing of America at 1-800-776-9425.

When calling World Marketing, have ready:

your name
your address
how the heater was malfunctioning
serial number of the heater
model number of heater
replacement part number

TROUBLESHOOTING

PROBLEM| POSSIBLE CAUSE|

CORRECTIVE ACTION

---|---|---
1. The control dial is oﬀ and the unit is clicking/4cking| 1. This heater uses a continuous spark ignition system. This unit will continue to make a clicking/4cking sound at all 4mes before igni4on, aAer igni4on and during opera4on, regardless of valve knob posi4oning.| 1. No correc4ve ac4on is needed.
2. The unit is 4cking/clicking while the heater is lit.| 1. This heater uses a continuous spark ignition system. This unit will continue to make a clicking/4cking sound at all 4mes before igni4on, aAer igni4on and during opera4on, regardless of valve knob posi4oning.| 1. No correc4ve ac4on is needed.
3. The fan does not turn when an electrical connection is made.| 1. No electric power to the heater.| 1. Check the current to an electric outlet. If the voltage is correct, check the power cord and extension cord for

2. Be sure that housing is not damaged. Make sure there are no obstacles to the fan.

3. Straighten blade(s) to match others.

4. Replace motor.

| 2. Fan blade contacts inside of heater housing.
| 3. Fan blade(s) bent

4. Fan motor defec4ve.

4. Heater will not ﬁre.| 1. No spark at ignitor.

__

2. Improper spark gap.

3. Bad electrode.

| 1. Check the ignitor wire. Re-‐aQach or 4ghten if loose. Check the Spark module. Replace if necessary.

2. Set gap (See speciﬁca4ons for gap).

3. Replace Spark Plug.

5. Heater quits while running.| 1. Internal temperature too high causing limit switch to shut down opera4on.

2. Damaged Control Valve.

3. Dust or debris build-‐up inside of heater.

| 1. If the heater’s output is restricted, the internal temperature becomes too high. Move the heater away from any obstructions.

2. Replace Control Valve.

3. Clean the inside of the heater.

Always be sure to follow proper maintenance procedures, by cleaning the heater once per month during regular usage, and checking the spark gap at least once per season.

WIRING DIAGRAMS

PIEZO/MANUAL SPARK MODELS

$DURA-HEAT-GFA40-Propane-Construction-Heater-fig- $6$$

If any original wiring supplied with the heater must be replaced, it must be type AWG 105°C wire or its equivalent, except as indicated.

CONTINUOUS SPARK MODELS

$DURA-HEAT-GFA40-Propane-Construction-Heater-fig- $7$$

If any original wiring supplied with the heater must be replaced, it must be type AWG 105°C wire or its equivalent, except as indicated.

REPLACEMENT PARTS LIST

MODELS:

GFA40
GFA50A
GFA60A

$DURA-HEAT-GFA40-Propane-Construction-Heater-fig- $8$$

__

ITEM No.

| __

DESCRIPTION

| __

QTY

| PART NUMBER
---|---|---|---
GFA40| GFA50A| GFA60A
1| INNER SHELL ASSEMBLY| 1| 2304818| 2304818| 2304818
2| NOZZLE| 1| 2304829| 2304942| *2325121
3| FLAME CAP| 1| 2304819| 2304819| 2325120
4| THERMAL SWITCH BRACKET| 1| 2304826| 2304826| 2304826
5| THERMAL SWITCH| 1| 2201373| 2201563| 2201599
6| NOZZLE NUT| 1| 2304578| 2304578| 2304578
7| SPARK PLUG ASSEMBLY| 1| 2201375| 2201375| 2206033
8| THERMOCOUPLE ASSEMBLY (1130/1474-‐425L)| 1| 2304885| 2304885| 2304885
9| GAS TUBING ASSEMBLY| 1| 2304830| 2304830| 2304830
10| OUTER SHELL| 1| 2315956| 2315956| 2315956
11| CORD WRAP (select models only)| 2| N/A| N/A| N/A
12| HANDLE ASSEMBLY -‐ BLACK| 1| 2101447| 2101447| 2101447
HANDLE ASSEMBLY -‐ GRAY| 1| 2305426| 2305426| 2305426
12.1| SCREW -‐ HANDLE FRONT| 1| 2001355| 2001355| 2001355
12.2| SCREW -‐ HANDLE FRONT| 1| 2001077| 2001077| 2001077
12.3| NUT -‐ HANDLE REAR| 1| 2000384| 2000384| 2000384
13| MOTOR SUPPORT| 1| 2304823| 2304823| 2304823
13.1| MOTOR -‐ MOUNTING BOLT| 2| 2001332| 2001332| 2001332
13.2| SLEEVE| 1| 2304949| 2304949| 2304949
14| MOTOR ASSEMBLY| 1| 2305909| 2305447| 2304547
14.1| MOTOR -‐ FAN| 1| 2304821| 2304821| 2304821
15| FAN GUARD -‐ BLACK| 1| 2304828| 2304828| 2304828
FAN GUARD -‐ GRAY| 1| 2305411| 2305411| 2305411
16| MOTOR BRACKET| 1| 2304937| 2304937| 2304937
17| VALVE -‐ GAS| 1| GS22 (FA40)| GS22A(FA60)| GS22A(FA60)
18| PRESSURE SWITCH| 1| N/A| N/A| N/A
19| VALVE BRACKET| 1| 2304624| 2304624| 2304624
20| BASE ASSEMBLY -‐ BLACK| 1| 2304923| 2304923| 2304923
BASE ASSEMBLY -‐ GREY| 1| 2305405| 2305405| 2305405
21| POWER CORD ASSEMBLY| 1| 2201368| 2101670| 2101670
22| GAS CONNECTOR INLET| 1| 2304831| 2304831| 2304831
23| CAPACITOR| 1| 2201372| 2201372| 2201372
24| BASE LOWER -‐BLACK| 1| 2304925| 2304925| 2304925
BASE LOWER -‐ GREY| 1| 2305407| 2305407| 2305407
25| KNOB GAS VALVE -‐ BLACK| 1| 2101451| 2101451| 2101451
KNOB GAS VALVE -‐ ORANGE| 1| 2305466| 2305466| 2305466
26| HEIGHT CONTROLLER -‐ BLACK| 1| 2304927| 2304927| 2304927
HEIGHT CONTROLLER -‐ GREY| 1| 2305409| 2305409| 2305409
27| HEIGHT CONTROL SCREW -‐ BLACK| 1| 2304510| 2304510| 2304510
HEIGHT CONTROL SCREW -‐ ORANGE| 1| 2305467| 2305467| 2305467
28| LEAD WIRE ASSEMBLY| 1| 2201371| 2201371| 2201371
29| SPARK MODULE| 1| N/A| 2201391| 2201391
30| PCB ASSEMBLY| 1| 2201369| 2201369| 2201369
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31

| __

REG & HOSE ASSEMBLY -‐ 10FT (3M)

| 1| KR-‐106-‐01(POL-‐3000)| KR-‐106-‐01(POL-‐3000)| KR-‐106-‐01(POL-‐3000)
__

REG & HOSE ASSEMBLY -‐ 10FT (3M) w/HANDWHEEL

VERSION NOT SHOWN IN EXPLODED VIEW

PROPANE CONSTRUCTION HEATER ILLUSTRATED / PARTS BREAKDOWN

MODELS:

GFA100A
GFA125A
GFA150A

$DURA-HEAT-GFA40-Propane-Construction-Heater-fig- $9$$

__

ITEM

No.

| __

DESCRIPTION

| __

QTY

| PART NUMBER
---|---|---|---
GFA100A| GFA125A| GFA150A
1| INNER SHELL ASSEMBLY| 1| 2304929| 2304929| 2304929
2| NOZZLE| 1| *2304943| 5030077| 2304944
3| FLAME CAP| 1| 2304930| 2325122| 2304931
4| THERMAL SWITCH BRACKET| 1| 2304826| 2315515| 2001355
5| THERMAL SWITCH| 1| 2201373| 2201373| 2201373
6| NOZZLE NUT| 1| 2304578| 2304945| 2304945
7| SPARK PLUG ASSEMBLY| 1| 2201392| 2206034| 2201393
8| THERMOCOUPLE ASSEMBLY (1130/1474-‐425L)| 1| 2304885| 2304885| 2304885
9| GAS TUBING ASSEMBLY| 1| 2304946| 2325138| 2304947
10| OUTER SHELL| 1| 2915957| 2304922| 2315957
11| CORD WRAP (select models only)| 2| 2101423| 2101423| 2101423
12| HANDLE ASSEMBLY -‐ BLACK| 1| 2101447| 2101447| 2101447
HANDLE ASSEMBLY -‐ GRAY| 1| 2305426| 2305426| 2305426
12.1| SCREW -‐ HANDLE FRONT| 1| 2001355| 2001355| 2001355
12.2| SCREW -‐ HANDLE FRONT| 1| 2001077| 2001077| 2001077
12.3| NUT -‐ HANDLE REAR| 1| 2000384| 2000384| 2000384
13| MOTOR SUPPORT| 1| 2304823| 2304823| 2304823
13.1| MOTOR -‐ MOUNTING BOLT| 2| 2001332| 2001332| 2001332
13.2| SLEEVE| 1| 2304949| 2304949| 2304949
14| MOTOR ASSEMBLY| 1| 2304548| 2304548| 2304548
14.1| MOTOR -‐ FAN| 1| 2304936| 2304936| 2304936
15| FAN GUARD -‐ BLACK| 1| 2304939| 2304939| 2304939
FAN GUARD -‐ GRAY| 1| 2305412| 2305412| 2305412
16| MOTOR BRACKET| 1| 2304938| 2304938| 2304938
17| VALVE -‐ GAS| 1| GS22A(FA125)| GS22A(FA125)| GS22A(FA150)
18| PRESSURE SWITCH| 1| 2305976| 2305976| 2305976
19| VALVE BRACKET| 1| 2304624| 2304624| 2304624
20| BASE ASSEMBLY -‐ BLACK| 1| 2304924| 2304924| 2304924
BASE ASSEMBLY -‐ GREY| 1| N/A| 2403354| N/A
21| POWER CORD ASSEMBLY| 1| 2101673| 2101673| 2101673
22| GAS CONNECTOR INLET| 1| 2304831| 2304831| 2304831
23| CAPACITOR| 1| 2301390| 2301390| 2301390
24| BASE LOWER -‐ BLACK| 1| 2304926| 2304926| 2304926
BASE LOWER -‐ GREY| 1| N/A| 2403355| N/A
25| KNOB GAS VALVE -‐ BLACK| 1| 2101451| 2101451| 2101451
KNOB GAS VALVE -‐ ORANGE| 1| N/A| 2305466| N/A
26| HEIGHT CONTROLLER -‐ BLACK| 1| 2304928| 2304928| 2304928
HEIGHT CONTROLLER -‐ GREY| 1| N/A| 2403356| N/A
27| HEIGHT CONTROL SCREW -‐ BLACK| 1| 2304510| 2304510| 2304510
HEIGHT CONTROL SCREW -‐ ORANGE| 1| N/A| 2305467| N/A
28| LEAD WIRE ASSEMBLY| 1| 2201371| 2201371| 2201371
29| SPARK MODULE| 1| 2201391| 2201391| 2201391
30| PCB ASSEMBLY| 1| 2201369| 2201369| 2201369
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31

WARRANTY

LIMITED WARRANTY:
This limited warranty is extended to the original retail purchaser of this Duraheat Forced Air/Convection/Radiant Heater and warrants against any defect in materials and workmanship for one (1) year from the date of retail sale. World Marketing of America, Inc., at its option, will either provide replacement parts or replace or repair the unit, when properly returned to the retailer where purchased or one of our service centres as directed by World Marketing, within one (1) year of retail purchase. (Shipping costs, labour costs, etc. are the responsibility of the purchaser.)

DUTIES OF THE OWNER:
This heating appliance must be operated according to the written instructions furnished with this heater. This warranty shall not excuse the owner from properly maintaining this heater by the written instructions furnished with this heater. A bill of sale cancelled check or payment record must be kept to verify the purchase date and establish a warranty period. The original carton should be kept in case of warranty return of the unit.

WHAT IS NOT COVERED:

Damage resulting from the use of improper fuel.
Damage caused by misuse or use contrary to the owner’s manual and safety guidelines.
Damage is caused by a lack of normal maintenance.
Fuses
Use of non-standard parts or accessories.
Damage caused in transit. Freight charges on warranty parts or heaters to and from the factory shall be the responsibility of the owner.

This warranty does not imply or assume any responsibility for consequential damages that may result from the use, misuse, or lack of routine maintenance of this heating appliance. A cleaning fee and the cost of parts may be charged for appliance failures resulting from a lack of maintenance. This warranty does not cover claims that do not involve defective workmanship or materials. FAILURE TO PERFORM GENERAL MAINTENANCE (INCLUDING CLEANING) WILL VOID THIS WARRANTY.

THIS LIMITED WARRANTY IS GIVEN TO THE PURCHASER IN PLACE OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY OF FITNESS FOR A PARTICULAR PURPOSE. THE REMEDY PROVIDED IN THIS WARRANTY IS EXCLUSIVE AND IS GRANTED IN PLACE OF ALL OTHER REMEDIES. IN NO EVENT WILL WORLD MARKETING OF AMERICA BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.

Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you.

CLAIMS HANDLED AS FOLLOWS:

Contact your retailer and explain the problem.
If the retailer is unable to resolve the problem, contact our Consumer Warranty Dept. detailing the heater model, the problem, and proof of date of purchase.
A representative will contact you. DO NOT RETURN THE HEATER TO WORLD MARKETING OF AMERICA, INC. unless instructed by our Representative.

This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

TO REGISTER THE WARRANTY ON YOUR HEATER, PLEASE FILL OUT THIS CARD COMPLETELY AND MAIL WITHIN 14 DAYS FROM DATE OF PURCHASE OR REGISTER ON-LINE AT www.worldmkting.com.

$DURA-HEAT-GFA40-Propane-Construction-Heater-fig- $10$$

WARRANTY REGISTRATION

IMPORTANT:
We urge you to fill out your warranty registration card within fourteen (14) days of the date of purchase. You can also register your warranty on the internet at www.worldmkting.com. Complete the entire serial number. Retain this portion of the card for your records.

World Marketing of America, Inc.