Direct Fired Heaters for Rent

United Rentals has a large inventory of direct-fired heaters for rent to help you heat your next project in commercial, industrial or residential applications.

For our full list of direct fired heaters for rent, view the items below. For more information, visit our resource section.

Cat Class Code

250-2985

80,000 BTU Direct-Fired Heater, LP/NG

80,000 BTU
LP/NG direct-fired heater
450 CFM
115V
80 lbs.
Uses: Ideal for efficiently heating jobsites, businesses, events and more
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-3055

40,000 BTU Direct-Fired Heater, LP/NG

40,000 BTU
LP/NG direct-fired heater
330 CFM
120V
53 lbs.
Uses: Ideal for keeping jobsites and events warm and comfortable
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-3100

400,000 BTU Direct-Fired Heater, LP/NG

400,000 BTU
LP/NG direct-fired heater
1,000-2,000 CFM depending on model
115-120V depending on model
50-90 lbs.
Uses: Ideal for efficiently heating jobsites, businesses, events and more
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-3124

650,000-1,000,000 BTU Direct-Fired Heater, LP/NG

650,000-1,000,000 BTU depending on model
LP/NG direct-fired heater
7,000 CFM
115-120V depending on model
285-360 lbs.
Uses: Ideal for efficiently heating jobsites, businesses, events and more
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-3125

1,500,000 BTU Direct-Fired Heater, LP/NG

1,500,000 BTU
LP/NG direct-fired heater
7,000 CFM
115-120V depending on model
285-360 lbs.
Uses: Ideal for efficiently heating jobsites, businesses, events and more
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-3470

170,000 BTU Direct-Fired Heater, LP/NG

170,000 BTU
LP/NG direct-fired heater
1,200 CFM
120V
161 lbs.
Uses: Ideal for heating tents, indoor event spaces or other medium-sized rooms
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-4000

3,640,000 BTU Direct-Fired Vaporizer, LP

3,640,000 BTU
Direct-fired LP vaporizer
No electricity required
Uses: Ideal for agricultural and industrial applications like crop drying, jobsite heating, manufacturing processes and more
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-5700

170,000 BTU Direct-Fired Heater With Thermostat, LP/NG

170,000 BTU
LP/NG direct-fired heater
1,200 CFM
120V
161 lbs.
Uses: Ideal for keeping jobsites and events warm and comfortable
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-6570

500,000 BTU Direct-Fired Make-Up Air Heater, LP/NG

500,000 BTU
LP/NG direct-fired make-up heater
3,000 CFM
120V/1PH
Uses: Ideal for warming and maintaining heat in residential, industrial or commercial spaces

Cat Class Code

250-6571

1,500,000-1,600,000 BTU Direct-Fired Make-Up Air Heater, LP/NG

1,500,000-1,600,000 BTU depending on model
LP/NG direct-fired make-up heater
8,800-9,400 CFM depending on model
230V/1PH or 230V/3PH depending on model
992-1,275 lbs.
Uses: Ideal for warming and maintaining heat in residential, industrial or commercial spaces
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-6572

2,300,000-2,500,000 BTU Direct-Fired Make-Up Air Heater, LP/NG

2,300,000-2,500,000 BTU depending on model
LP/NG direct-fired make-up heater
14,700-15,000 CFM depending on model
230V/1PH or 230V/3PH depending on model
1,640-1,900 lbs.
Uses: Ideal for large or expansive jobsites and events where maintaining consistent climate control is crucial for performance and efficiency
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-6574

4,559,000-4,887,000 BTU Direct-Fired Make-Up Air Heater, LP/NG

4,559,000-4,887,000 BTU depending on model
LP/NG direct-fired make-up heater
Up to 24,300 CFM
208/230/460V/3PH or 230/480V/3PH depending on model
2,326-4,445 lbs. depending on model
Uses: Ideal for jobsites and events where maintaining consistent climate control is crucial for performance and efficiency
If you have a preferred fuel type, please list it in your order notes

At United Rentals, our direct-fired heater rentals offer the features you need to control the temperature of ventilated indoor spaces such as warehouses or manufacturing plants and outdoor spaces such as construction sites or arenas. Direct-fired heaters, also known as salamander heaters or torpedo heaters, are highly efficient and heat fresh air through direct contact with an open flame. Perfect for warming big areas with plenty of ventilation, our fleet of direct heater rentals includes propane, natural gas and dual-fuel configurations. Our direct heater rental models offer up to 1.5 million BTUs and include features such as wheels for portability and built-in thermostats. Choose from reliable brands such as Frost Fighter, Flagro and L.B. White.

Learn more about direct heater rentals in the FAQ section below.

Are there any ventilation requirements for using direct-fired heaters?

Yes, there are ventilation requirements for direct-fired heaters. They should only be used in large, well-ventilated spaces because direct heating creates carbon monoxide, a colorless, odorless gas that can be very dangerous if inhaled.

How efficient are direct-fired heaters compared to indirect-fired heaters?

In direct-fired heating, 100% of the fuel burned is used to supply warmth, making these rental models highly efficient. With an indirect-fired heater, only about 80% of the fuel burned heats the air, so they are less efficient.

What types of fuel can be used in direct-fired heaters?

The type of fuel that can be used in a direct-fired heater varies depending on the individual model. Most direct fired heater models use propane or natural gas, and many configurations offer dual-fuel capabilities.