Indirect Fired Heaters for Rent

United Rentals’ large fleet of indirect-fired heater rentals can provide heating for your next commercial, industrial or residential project.

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

Cat Class Code

250-2475

390,000-400,000 BTU Indirect-Fired Heater, Diesel

390,000-400,000 BTU depending on model
Diesel indirect-fired heater
2,500-4,000 CFM depending on model
115-120V depending on model
420-450 lbs.
Uses: Ideal for commercial and industrial heating applications

Cat Class Code

250-3033

170,000-175,000 BTU Indirect-Fired Heater, LP/NG

170,000-175,000 BTU depending on model
LP/NG indirect-fired heater
1,600-2,750 CFM depending on model
120V
209-250 lbs.
Uses: Ideal for commercial and industrial heating applications
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-3040

175,000-230,000 BTU Indirect-Fired Heater, Diesel

175,000-230,000 BTU depending on model
Diesel indirect-fired heater
1,900-3,250 CFM depending on model
115-120V depending on model
307-465 lbs.
Uses: Ideal for keeping jobsites and events warm and comfortable

Cat Class Code

250-3115

420,000 BTU Indirect-Fired Heater, LP/NG

420,000 BTU depending on model
LP/NG indirect-fired heater
3,100-4,800 CFM
110-120V depending on model
420-580 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

250-3117

700,000 BTU Indirect-Fired Heater, LP/NG

700,000 BTU
LP/NG indirect-fired heater
4,600 CFM
208/230V/1PH, 208/230V/3PH, 460V/3PH or 600V/3PH depending on model
1,600 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

250-3121

400,000-770,000 BTU Indirect-Fired Heater, Diesel

400,000-770,000 BTU depending on model
Diesel indirect-fired heater
4,000-4,600 CFM depending on model
120V, 208/230V/1PH or 208/230V/3PH depending on model
1,600-5,700 lbs.
Uses: Ideal for keeping jobsites and buildings warm and comfortable

Cat Class Code

250-3122

515,500-1,000,000 BTU Towable Indirect-Fired Heater, Diesel

1,000,000 BTU
Diesel indirect-fired heater
3,200-9,600 CFM depending on model
3,700-4,600 lbs.
Uses: Ideal for keeping large-scale jobsites and events warm and comfortable

Cat Class Code

250-3123

1,000,000 BTU Skid-Mounted Indirect-Fired Heater, LP/NG

1,000,000 BTU
LP/NG indirect-fired heater
7,500-13,500 CFM depending on model
208/240V/3PH or 240V/1PH depending on model
1,160-5,150 lbs.
Uses: Ideal for keeping large jobsites and events warm and comfortable
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-3133

1,300,000-1,500,000 BTU Indirect-Fired Heater, LP/NG

1,300,000-1,500,000 BTU depending on model
LP/NG indirect-fired heater
18,000-24,000 CFM depending on model
208/230V/3PH, 460V/3PH or 575V/3PH depending on model
2,160-2,866 lbs.
Uses: Ideal for heating large commercial spaces like warehouses or manufacturing plants
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-3477

380,000-399,000 BTU Indirect-Fired Heater, LP/NG

380,000-399,000 BTU depending on model
LP/NG indirect-fired heater
3,250-5,500 CFM depending on model
120V
400-600 lbs.
Uses: Ideal for keeping large jobsites and events warm and comfortable
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-3483

350,000 BTU Indirect-Fired Heater, Ducted, LP/NG

350,000 BTU
LP/NG indirect-fired heater
2,500 CFM
115V
320-580 lbs.
Uses: Ideal for keeping large jobsites and events warm and comfortable
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-3484

400,000 BTU Indirect-Fired Heater, Ducted, Diesel

400,000 BTU
Diesel indirect-fired heater
2,800-5,500 CFM depending on model
120V
420 lbs.
Uses: Ideal for commercial and industrial heating applications

Cat Class Code

250-3485

420,000-500,000 BTU Indirect-Fired Heater, Diesel

420,000-500,000 BTU depending on model
Diesel indirect-fired heater
3,100-4,800 CFM depending on model
110-120V depending on model
580 lbs.
Uses: Ideal for commercial and industrial heating applications

Cat Class Code

250-3486

350,000 BTU Indirect-Fired Heater, Diesel

350,000 BTU
Diesel indirect-fired heater
2,500 CFM
110V
580 lbs.
Uses: Ideal for commercial and industrial heating applications

Cat Class Code

250-3530

390,000-400,000 BTU Indirect-Fired Heater, Diesel

390,000-400,000 BTU depending on model
Diesel indirect-fired heater
1,400-2,800 CFM depending on model
115-120V depending on model
163-450 lbs. depending on model
Uses: Ideal for warming residential, industrial or construction areas

Cat Class Code

250-6525

300,000-390,000 BTU Indirect-Fired Heater, LP/NG

300,000-390,000 BTU depending on model
LP/NG indirect-fired heater
2,500-2,900 CFM depending on model
110-120V depending on model
467-580 lbs.
Uses: Ideal for maintaining optimal temperatures in commercial and industrial environments, such as factory floors, warehouses and office buildings
If you have a preferred fuel type, please list it in your order notes

Cat Class Code

250-6905

940,000-1,000,000 BTU Indirect-Fired Central Heating Unit, LP/NG

940,000-1,000,000 BTU
LP/NG indirect-fired central heating unit
115/230V/1PH or 240V/1PH depending on model
1,815 lbs.
Uses: Ideal for maintaining optimal temperatures in commercial and industrial environments, such as factory floors, warehouses and office buildings
If you have a preferred fuel type, please list it in your order notes

At United Rentals, our robust selection of commercial indirect-fired heater rentals offers heating solutions for a variety of applications, from warming enclosed spaces in large retail spaces, hospitals or warehouses to heating outdoor construction sites or events. In an indirect-fired heater, fresh air is pushed through a heat exchanger that generates cleaner and drier air to safely heat small and large spaces or speed up construction tasks like curing concrete. Our fleet of indirect heater rentals includes diesel, propane, natural gas and kerosene-powered configurations that are cost-effective, energy-efficient, portable and quietly operated. Rent indirect-fired heater models rated from 170,000 BTUs to 1.5 million BTUs from reliable brands such as Frost Fighter, Flagro, L.B. White and Campo.

Learn more about indirect fired heater rentals in the FAQ section below.

What is the difference between direct and indirect-fired heaters?

Direct-fired heaters warm fresh air with an open flame. They are highly efficient, cost-effective and easy to move, but they create moist air and require plenty of ventilation because they produce carbon monoxide. Indirect-fired heaters contain the flame in a burn chamber, which warms a heat exchanger that warms fresh air that is pulled through it. These models are safe to use in enclosed spaces and generate drier air, but they are less efficient and more expensive to operate.

Are indirect-fired heaters safe to use indoors?

Yes, they can be used indoors if installed with the proper duct work. In an indirect-fired heater, combustion happens inside the heat exchanger, and unwanted fumes are exhausted through a chimney or flue.

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

The type of fuel that can be used in an indirect-fired heater varies depending on the individual models. Most indirect heaters run on oil, diesel, natural gas, propane or dual fuel.