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DF-400 Direct Fired Heater

DF-400 Direct Fired HeaterRead below to learn more about the DF-400 Direct Fired Heater. This model is intended for temporary heating.

Some benefits include:

  • Lowest Emissions in the Industry
  • ETL 2009 International Approved
  • Powder Coated
  • Thermostatically Controlled
  • Low Pressure Regulator on Manifold
  • Standard Wheels for easy mobility
  • Easy Ball Valve Changeover from Propane to Natural Gas
  • Stainless Steel Burner for Higher Efficiency & Durability

Learn more about propane heaters.

Troubleshooting the DF-400

Basic Operation
DF-400

Air Proving Switch
DF-400 Air Proving Switch

Safety Features
DF-400 Safety Features

Using a Thermostat
DF-400 Using a Thermostat

Clean Igniter
DF-400 Clean Igniter

Portable Heater Specifications

Items  Unit   DF-400
Input   BTU/Hr  400,000
Fuel  Vapor Propane/Natural Gas
Minimum Temp Rating   C/F -40
Weight   lbs  145
Gas Consumption  157 CFH/LP 4.35 US Gal/HR
390 CFH/NG 10.7 US Gal/HR
Inlet Pipe Connection   NPT 3/4″
Electrical   120 Volts 15 amps circuit
Fan    2,500 CFM 1/2 HP
Approval Agency   ETL

Download the DF-400 Brochure

Interested in renting the DF-400? Call us at 800-810-4181.

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Temporary Heat Resources

  • Preventing Frozen Pipes

  • Heater Fueling Safety

  • How to Temporarily Heat a Fire Station

  • Safety Tips for Portable Heaters

  • 5 Things You Shouldn’t Do With Temporary Heaters

  • How to Heat a Church

  • How to Temporarily Heat a Commercial Building

  • Is It Better to Rent or Buy a Commercial Heater for Your Business?

  • What is Positive and Negative Air Pressure?

  • How Much Heat Can You Get Out of a 115-Volt Outlet?

  • How Much Heat Can You Get From a Fuel Source?

  • Heating Strategies for Warehouses

  • Portable Heat Pumps: An Efficient Way to Heat Your Business

  • Choosing the Best Commercial Heater

  • The Best Way to Heat Commercial Buildings

  • Heating Options for Commercial Buildings

  • Heating Strategies for Construction Sites

  • Restaurant Tent Heater Rental in Bergen County, NJ

  • How to Operate a DF-400 Unit

  • The Effects of Cold Weather on Construction Sites

  • Heating Strategies for Office Spaces & Retail Stores

  • What is the Difference Between Direct and Indirect Fired Heaters?

  • It’s All About Air Flow – How Fans Help Improve Heating and Cooling Efficiency

  • Heating Efficiency Tips for Construction Sites

  • Watch us Install an Indirect Fired Heater

  • Temporary Heating for Events – Stay ahead of the Weather

Available Portable Heating Units

Indirect Fired Units

150k BTU Portable Heater
IDH200QR
150,000 BTU
500k BTU Portable Heater
IDF 500
500,000 BTU
700k BTU Portable Heater
IHS 700
700,000 BTU
950k BTU Portable Heater
950HS
950,000 BTU

Direct Fired Units

400k BTU Portable Heater
S405
400,000 BTU
950k BTU Portable Heater
950HS
950,000 BTU
170k  BTU Portable Heater
K170
170,000 BTU
350k BTU Portable Heater
TS350
350,000 BTU
400k BTU Portable Heater
DF-400
400,000 BTU
1.5 million BTU Portable Heater
DF-1500
1.5 mil BTU

Electric Units

Fostoria Electric Heater Heater
FES-0924-1C
30,717 BTU
Fostoria Electric Heater Heater
FES-1520-3A
51,195 BTU
Fostoria Electric Heater Heater
FES-1524-1A
51,195 BTU
Fostoria Electric Heater Heater
FES-3048-1A
102,390 BTU
Commercial Space Heater
P1500
5,100 BTU
Commercial Space Heater
AHSC-18
18,500 BTU
Industrial Space Heater
HotBox
205,000 BTU

Visit Our Heating Store

Main Office

3033 Market Street
Aston, PA 19014

  • 484-482-2040

NJ Location

1 West Baltimore Ave,
Linden, NJ 07036

  • 973-776-9696

MD Location

6675 Amberton Dr., Ste 11
Elkridge, MD 21075

  • 410-631-6636

Contact Us

  • 1-800-810-4181
  • sales@priorityrental.com
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