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Direct Fired
Using Direct Fired Portable Heaters is the most effective and efficient method to heat construction sites and large open industrial facilities. Safety is always first and foremost. All of our heaters are certified by an independent testing laboratory such as CSA, AGA, ETL or UL to meet or exceed ANSI (American National Standards Institute) Z83.2000 for “Construction Heaters Unattended Type”. The Mobile Air Direct Fired Heaters can provide you with more than just heat with moisture control, good indoor air quality, large energy savings and safety which are all part of the package. You can always call Mobile Air 1-888-474-4341 and talk to one of the “Heroes of Heat” about your particular application and what your specific concerns and needs are. If you have any questions or would like any help with product selection, application assistance etc. call us at 1-888-474-4341 we are here to help you. Together we can help you to form and implement your heating plan.
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Direct Fired S405
$ 2,290.00
Voltage: 120 volt single phase
Circuit Size: 20 amps
BTU/hr: 400,000
CFM: 2,000
Thermostat: On-Off
Fuel: Natural Gas, Vapor Propane
Gas Connection: 3/4" NPT
Weight: 95 lbs.
Dimensions: 22" x 44" x 6.5"
· CSA approved for unattended operation
· MEA approved for use in New York City
· Light enough for one-man to move
· Dual Fuel - Quick changeover from propane to natural gas
· Air flow switch and Hi limit switch ensures safe operation
· Thermostat to conserve fuel
· Optional wheel kit available
· Steel construction ensures durability
· Weather-sealed box for use indoors and outdoors Learn More
Circuit Size: 20 amps
BTU/hr: 400,000
CFM: 2,000
Thermostat: On-Off
Fuel: Natural Gas, Vapor Propane
Gas Connection: 3/4" NPT
Weight: 95 lbs.
Dimensions: 22" x 44" x 6.5"
· CSA approved for unattended operation
· MEA approved for use in New York City
· Light enough for one-man to move
· Dual Fuel - Quick changeover from propane to natural gas
· Air flow switch and Hi limit switch ensures safe operation
· Thermostat to conserve fuel
· Optional wheel kit available
· Steel construction ensures durability
· Weather-sealed box for use indoors and outdoors Learn More
Direct Fired 1800B
$ 4,140.00
Voltage: 120 single phase
Circuit Size: 20 amps
BTU/hr: 750,000
CFM: 4200
Thermostat: On-Off
Fuel: Natural Gas, Vapor Propane, Liquid Propane
Gas Connection: 3/4" NPT
Weight: 200 lbs
Dimensions: 62" x 28.5" x 32"
· Efficient motor reduces amp draw and is rated to run on standard 15 amp circuit
· New remote (50’long) thermostat with Hi/Lo/Off control
· 12" wheels make for easy handling
· Relays pull in and hold tight down to 95V
· Ductable up to 125 ft.
· Upgraded heater control board
Starts heater with low voltage down to 95V-
Potted control board minimizes moisture and vibration
· Diagnostic troubleshooting lights Learn More
Circuit Size: 20 amps
BTU/hr: 750,000
CFM: 4200
Thermostat: On-Off
Fuel: Natural Gas, Vapor Propane, Liquid Propane
Gas Connection: 3/4" NPT
Weight: 200 lbs
Dimensions: 62" x 28.5" x 32"
· Efficient motor reduces amp draw and is rated to run on standard 15 amp circuit
· New remote (50’long) thermostat with Hi/Lo/Off control
· 12" wheels make for easy handling
· Relays pull in and hold tight down to 95V
· Ductable up to 125 ft.
· Upgraded heater control board
Starts heater with low voltage down to 95V-
Potted control board minimizes moisture and vibration
· Diagnostic troubleshooting lights Learn More
Direct Fired S1505B
$ 7,190.00
Voltage: 120 single phase
Circuit Size: 20 amps
BTU/hr: 1,500,000 hi fire, 500,000 lo fire
CFM: 7000
Thermostat: Lo-hi
Fuel: Natural Gas, Vapor Propane
Gas Connection: 1 1/4" NPT
Weight: 300 lbs
Dimensions: 69" x 32" x 41.5"
Efficient motor reduces amp draw and is rated to run on standard 15 amp circuit.
New remote (15’ long) thermostat with Hi/Lo/Off control.
Relays pull in and hold tight down to 50V.
Upgraded heater control board
*starts heater with low voltage down to 95V
now with built-in diagnostics
*runs stable when voltage drops down to 83V
*potted control board minimizes moisture and vibration
*rated to -40ºF
Learn More
Circuit Size: 20 amps
BTU/hr: 1,500,000 hi fire, 500,000 lo fire
CFM: 7000
Thermostat: Lo-hi
Fuel: Natural Gas, Vapor Propane
Gas Connection: 1 1/4" NPT
Weight: 300 lbs
Dimensions: 69" x 32" x 41.5"
Efficient motor reduces amp draw and is rated to run on standard 15 amp circuit.
New remote (15’ long) thermostat with Hi/Lo/Off control.
Relays pull in and hold tight down to 50V.
Upgraded heater control board
*starts heater with low voltage down to 95V
now with built-in diagnostics
*runs stable when voltage drops down to 83V
*potted control board minimizes moisture and vibration
*rated to -40ºF
Learn More
Direct Fired 2730C
$ 12,200.00
Voltage: 208-230 volt single-phase, 208-320 volt three phase, 460-480 volt three phase
Circuit Size: 30 hi fire, 15 lo fire
BTU/hr: 2,000,000 hi fire, 500,000 lo fire
CFM: 12,500
Thermostat: Hi-Lo
Fuel: Natural Gas, Vapor Propane, Liquid Propane
Gas Connection: 3/4 " NPT
Weight: 450 lbs
Dimensions: 72" x 32" x 46"
· May be ducted up to 200 feet
· Built in fused disconnect switch for easy wiring and power shut-of
· Sealed control box for outdoor operation
· Panel mounted voltage meter
Learn More
Circuit Size: 30 hi fire, 15 lo fire
BTU/hr: 2,000,000 hi fire, 500,000 lo fire
CFM: 12,500
Thermostat: Hi-Lo
Fuel: Natural Gas, Vapor Propane, Liquid Propane
Gas Connection: 3/4 " NPT
Weight: 450 lbs
Dimensions: 72" x 32" x 46"
· May be ducted up to 200 feet
· Built in fused disconnect switch for easy wiring and power shut-of
· Sealed control box for outdoor operation
· Panel mounted voltage meter
Learn More
Direct Fired 3050
$ 12,800.00
Voltage: 208-230 volt single-phase, 208-320 volt three phase, 460-480 volt three phase
Circuit Size: 15 hi fire, 30 lo fire
BTU/hr: 4,000,000 hi, 1,500,000 lo
CFM: 16,000
Thermostat:Hi-Lo
Fuel: Natural Gas, Vapor Propane, Liquid Propane
Gas Connection: 3/4 " NPT
Weight: 570 lbs
Dimensions: 73" x 41" x 44"
· May be ducted up to 200 feet
· Built in fused disconnect switch for easy wiring and power shut-of
· Sealed control box for outdoor operation
· Panel mounted voltage meter Learn More
Circuit Size: 15 hi fire, 30 lo fire
BTU/hr: 4,000,000 hi, 1,500,000 lo
CFM: 16,000
Thermostat:Hi-Lo
Fuel: Natural Gas, Vapor Propane, Liquid Propane
Gas Connection: 3/4 " NPT
Weight: 570 lbs
Dimensions: 73" x 41" x 44"
· May be ducted up to 200 feet
· Built in fused disconnect switch for easy wiring and power shut-of
· Sealed control box for outdoor operation
· Panel mounted voltage meter Learn More
Direct Fired 950H
$ 6,175.00
Heat your large space with the Direct Fired 950H portable heater. Designed specifically for large construction sites or large buildings, this 950,000 BTU/hr. heater can keep you and your employees warm and comfortable.
· Efficient motor reduces amp draw and is rated to run on standard 15 amp circuit
· New remote (50’long) thermostat with Hi/Lo/Off control
· 12" wheels make for easy handling
· Relays pull in and hold tight down to 95V
· Ductable up to 125 ft.
· Upgraded heater control board
Starts heater with low voltage down to 95V-
Potted control board minimizes moisture and vibration
· Diagnostic troubleshooting lights
Learn More
· Efficient motor reduces amp draw and is rated to run on standard 15 amp circuit
· New remote (50’long) thermostat with Hi/Lo/Off control
· 12" wheels make for easy handling
· Relays pull in and hold tight down to 95V
· Ductable up to 125 ft.
· Upgraded heater control board
Starts heater with low voltage down to 95V-
Potted control board minimizes moisture and vibration
· Diagnostic troubleshooting lights
Learn More
1 inch x 50 foot Gas Hose
Regular Price: $ 384.00
Special Price: $ 284.00
1 1/4 inch x 50 foot Gas Hose
Regular Price: $ 600.00
Special Price: $ 558.00
1-1/4 inch x 50 foot gas hose with 1-1/4 inch MPT ends Learn More
Make-up Air Intake Duct 30 inch x 15 foot
Regular Price: $ 300.00
Special Price: $ 267.00
Temperature Range: -20 deg F. to 200 deg. F.
Diameter:30"
Wire:Spring Steel
Wear Strip:Heavy Duty Flame Resistant, Military Spec Learn More
Diameter:30"
Wire:Spring Steel
Wear Strip:Heavy Duty Flame Resistant, Military Spec Learn More
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Sort by
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