Heaters for Rent

United Rentals offers a comprehensive fleet of heaters for rent for indoor and outdoor applications.

12 Ton Heat/AC Unit
Cat Class Code
244-2514

12-ton Portable Air Conditioner with Heat, 135,000 BTU, 208V, Electric Powered

  • 208V fume-free electric operation, must be hardwired by a qualified technician
  • Operates at temperatures below freezing
  • Heat or cool up to 12 tons of air per hour
  • High-efficiency and low noise
  • Uses: Ideal for heating or cooling large spaces such as jobsites, office spaces, event tents and other commercial and industrial applications
Ac heat unit
Cat Class Code
244-2515

12-ton Portable Air Conditioner with Heat, 135,000 BTU, 480V, Electric Powered

  • 480V fume-free electric operation, must be hardwired by a qualified technician
  • Operates at temperatures below freezing
  • Heat or cool up to 12 tons of air per hour
  • High-efficiency and low noise
  • Uses: Ideal for heating or cooling large spaces such as jobsites, office spaces, event tents and other commercial and industrial applications
Air Conditioner, Explosion Proof, 5 Ton
Cat Class Code
244-2503

3.5-ton Air Conditioner with Heat

  • 480V fume-free electric operation, must be hardwired by a qualified technician
  • Can remove up to 3.5 tons of heat per hour
  • High-efficiency and low noise
  • Casters for ease of installation
  • Internal pump with safety float for condensate water removal
  • Uses: Ideal for heating or cooling large spaces such as jobsites, office spaces, event tents, and other commercial and industrial applications
  • If you’re ready to rent this product, set your location to add it to your cart. If you need assistance, click the orange “Request Information” button to contact a Climate Solutions representative.
Air Conditioner Pack Shot
Cat Class Code
244-2505

5-ton Air Conditioner with Heat, 480V, Electric Powered

  • 480V operation (must be hardwired by a qualified electrician)
  • Unit dimensions 31" x 42" x 42"
  • Compact footprint for limited space
  • High efficiency and low noise
Heat Pump
Cat Class Code
250-6146

5-ton Heat Pump, 480V Electric Powered

  • 480V fume-free electric operation, must be hardwired by a qualified technician
  • Internal pump with safety float for condensate water removal
  • Heat or cool up to 5 tons of air per hour
  • Caster wheels and 10' power cord included for portability
  • Uses: Ideal for heating or cooling large spaces such as jobsites, office spaces, event tents and other commercial and industrial applications
five ton heat pump
Cat Class Code
250-6152

5-ton Heat Pump, 60,100 BTU, 208V, Electric Powered

  • 208V fume-free electric operation, must be hardwired by a qualified technician
  • Internal pump with safety float for condensate water removal
  • Heat or cool up to 5 tons of air per hour
  • Caster wheels and 10' power cord included for portability
  • Uses: Ideal for heating or cooling large spaces such as jobsites, office spaces, event tents and other commercial and industrial applications
  • If you’re ready to rent this product, set your location to add it to your cart. If you need assistance, click the orange “Request Information” button to contact a Climate Solutions representative.
AC w/Heat
Cat Class Code
244-3171

5-ton Portable Air Conditioner with Heat, 60,000 BTU, 208V, Electric Powered

  • 208V fume-free electric operation must be hardwired by a qualified technician
  • Remove up to 5 tons of heat per hour
  • High static allows for long duct setups
  • Portable A/C unit with caster wheels included for portability
  • Uses: Ideal for cooling or heating equipment rooms, offices, event spaces, outdoor jobsites and more
AC w/Heat
Cat Class Code
244-3173

5-ton Portable Air Conditioner with Heat, 60,000 BTU, 480V, Electric Powered

  • 480V fume-free electric operation, must be hardwired by a qualified technician
  • Remove up to 5 tons of heat per hour
  • High static allows for long duct setups
  • Portable A/C unit with caster wheels included for portability
  • Uses: Ideal for cooling or heating equipment rooms, offices, event spaces, outdoor jobsites and more
temporary duct
Cat Class Code
244-5203

A/C Ducting, 20 in. x 25 ft., Return with 3-in. Pitch

  • Our interlocking end rings allow for ease of connection by simply putting the ends inside one another
  • UV-, rot- and flame-resistant materials
  • Excellent abrasion resistance
  • Temperature ranges up to 200°F
  • Uses: Ideal for temporary ducting for entertainment, commercial or industrial jobsite needs
temporary ducting
Cat Class Code
250-1161

A/C/Heat Duct, 12 in. by 25 ft., High Temperature

  • Our interlocking end rings allow for ease of connection by simply putting the ends inside one another
  • UV-, rot- and flame-resistant materials
  • Excellent abrasion resistance
  • Withstands temperatures up to 350°F
  • Uses: Ideal for temporary solutions within various heating applications for multiple industries and worksite projects
temporary ducts
Cat Class Code
244-5050

AC/Heat Duct, 12 in. by 25 ft.

  • Our interlocking end rings allow for ease of connection by simply putting the ends inside one another
  • UV-, rot- and flame-resistant materials
  • Excellent abrasion resistance
  • Temperature ranges up to 200°F
  • Uses: Ideal for when your project needs temporary ducting
temporary duct
Cat Class Code
244-5200

AC/Heat Duct, 20 in. by 25 ft.

  • Our interlocking end rings allow for ease of connection by simply putting the ends inside one another
  • UV-, rot- and flame-resistant materials
  • Excellent abrasion resistance
  • Temperature ranges up to 200°F
  • Uses: Ideal for when your project needs temporary ducting
Box / Tent Style Heater 175K BTU Propane/Natural Gas Direct Fired
Cat Class Code
250-3470

Box / Tent Style Heater, 175,000 BTU Propane/Natural Gas, Direct Fired

  • Standard dual fuel heater
  • Ball valve conversion between propane or natural gas
  • Direct-fired 99.97% fuel efficiency
  • High volume of air output for maximum heat distribution
  • Rugged design
  • Heavy duty wheels for easy transport
Box / Tent Style Heater 350K BTU Propane/Natural Gas Direct Fired
Cat Class Code
250-3483

Box / Tent Style Heater, 350,000 BTU/h, Propane/Natural Gas, Direct Fired

  • Standard dual fuel heater
  • Ball valve conversion between propane or natural gas
  • Direct-fired 99.97% fuel efficiency
  • High volume of air output for maximum heat distribution
  • Rugged design and heavy duty wheels for easy transport
black cylindrical propane natural gas heater on wheels
Cat Class Code
250-3124

Direct Heater, 1,000,000 BTU/h, Propane/Natural Gas Dual Fuel

  • 41.3L per hour propane fuel consumption/1,000 cubic feet per hour natural gas fuel consumption
  • 115V/20 amp power with a 20-amp max. power draw
  • 7,000 CFM
  • Weighs 285 lbs.
  • Uses: Ideal for commercial heating applications
black cylindrical heater on two wheels
Cat Class Code
250-3125

Direct Heater, 1,500,000 BTU, Propane/Natural Gas Dual Fuel

  • 115v/20 amp power with a 20-amp max. power draw
  • A minimum capacity of 7,000 CFM
  • Portable for convenient relocation
  • Industrial or commercial applications
  • Uses: Ideal for commercial heating applications
white indirect fired heater on stand
Cat Class Code
250-3100

Direct Heater, 400,000 BTU, Propane/Natural Gas Dual Fuel

  • 16.5L per hour propane fuel consumption/400 cubic feet per hour natural gas fuel consumption
  • 115V/20 amp power with a 20-amp max. power draw
  • 2,000 CFM
  • Weighs 81 lbs.
  • Uses: Ideal for commercial heating applications
Cat Class Code
250-3120

Direct Heater, 65,000/41,000 BTU/h, Electric Powered

  • 65,000 or 41,000 BTU per hour depending on output mode
  • Ductable models with 12" outlets available
  • 590-940 CFM depending on model
  • Weighs 63 lbs.
  • Uses: Ideal for providing consistent space heating for small to medium-sized areas
  • Add this electric heater to your cart now
white square heating unit with towing bar on wheels
Cat Class Code
250-6905

DryAir Hydronic Heater, 1,200,000 BTU, Propane/Natural Gas Dual Fuel

  • 48L per hour propane fuel consumption
  • 1,233 cubic feet per hour natural gas fuel consumption
  • 115V/230V 30 amp power with a 20-amp max. power draw
  • Weighs 1,815 lbs.
  • Uses: Ideal for commercial and industrial heating applications
ground heater towable
Cat Class Code
250-6813

Ground Heater, 2,501-3,000 sq. ft.

  • 2,501 to 3,000 sq. ft thaw capacity
  • Performance-monitoring strobe light with low-voltage requirements
  • Multiple accessories available<br>
  • Highway operational
  • Uses: Ideal for heating and thawing frozen ground and surfaces
  • Add this hydronic surface ground heater to your cart
temporary ducting
Cat Class Code
250-1159

Heat Duct, 12 in. by 20 ft., High Temp

  • Our interlocking end rings allow for ease of connection by simply putting the ends inside one another
  • UV-, rot- and flame-resistant materials
  • Excellent abrasion resistance
  • Withstands temperatures up to 350°F
  • Uses: Ideal for temporary solutions within various heating applications for multiple industries and worksite projects
temporary ducting
Cat Class Code
250-1162

Heat Duct, 12 in. by 25 ft.

  • Our interlocking end rings allow for ease of connection by simply putting the ends inside one another
  • UV-, rot- and flame-resistant materials
  • Excellent abrasion resistance
  • Withstands temperatures up to 350°F
  • Uses: Ideal for temporary solutions within various heating applications for multiple industries and worksite projects
Cat Class Code
250-8520

Heated Ground Thawing Blanket, 25 ft. by 6 ft., Electric Powered

  • Votlage requirements: 110 V
  • Thaws frozen ground, melts ice and snow and keeps equipment engines consistently warm
  • Easily portable
  • Weatherproof and reusable
  • Uses: Ideal for thawing frozen ground and melting ice or snow so winter projects can continue
  • Add this ground thawing blanket to your cart now
grey united rentals branded heater
Cat Class Code
250-6574

Heater Make Up Air, 4,000,000-4,500,000 BTU, Propane/Natural Gas Dual Fuel

  • High discharge temperature safety shutdown and low discharge temperature protection
  • Dual-fuel capable
  • Discharge temps up to 190°F
  • Duct runs up to 400'
  • Uses: Ideal to heat large areas with low fuel-consumption costs
HEATER MAKE UP AIR 1MM-1.5MM BTU
Cat Class Code
250-6571

Heater Make-Up Air, 1,000,000-1,500,000 BTU, Propane/Natural Gas Dual Fuel

  • High discharge temperature safety shutdown and low discharge temperature protection
  • Dual-fuel capable
  • Discharge temps up to 190°F
  • Duct runs up to 400'
  • Infinite fuel-consumption modulation
  • Uses: Ideal to heat large areas with low fuel-consumption costs
HEATER MAKE UP AIR 2MM-2.5MM BTU
Cat Class Code
250-6572

Heater Make-Up Air, 2,000,000-2,500,000 BTU, Propane/Natural Gas Dual Fuel

  • High discharge temperature safety shutdown and low discharge temperature protection
  • Dual-fuel capable
  • Discharge temps up to 190°F
  • Duct runs up to 400'
  • Infinite fuel-consumption modulation
  • Uses: Ideal to heat large areas with low fuel-consumption costs
HEATER MAKE UP AIR 500K-600K BTU
Cat Class Code
250-6570

Heater Make-Up Air, 500,000-600,000 BTU, Propane/Natural Gas Dual Fuel

  • High discharge temperature safety shutdown and low discharge temperature protection
  • Dual-fuel capable
  • Discharge temps up to 190°F
  • Duct runs up to 400'
  • Infinite fuel-consumption modulation
  • Uses: Ideal to heat large areas with low fuel-consumption costs
Cat Class Code
250-3122

Heater, 1,000,000 BTU/h, Diesel Powered, Towable

  • 1 Mil BTU
  • Portable for convenient movement
  • Reliable diesel engine
  • Towable by vehicle
  • Uses: Ideal for efficiently heating business, industrial and construction spaces and other commercial heating applications
green heater on wheels
Cat Class Code
250-3437

Heater, 136K Btu, 480V, Electric Powered

  • Ducted for maximum efficiency
  • Reliable electric power
  • Industrial or commercial applications
  • Uses: Ideal for efficiently heating business, industrial and construction spaces and other commercial heating applications
  • Contact your United Rental representative today for information
Cat Class Code
250-5700

Heater, 170,000 BTU, With Thermostat

  • 170K BTU
  • Thermostat for temperature gauging
  • Cost-efficient
  • Industrial or commercial applications
  • Uses: Ideal for efficiently heating business, industrial and construction spaces and other commercial heating applications
red cylindrical heater on two wheels
Cat Class Code
250-3433

Heater, 208V, Electric Powered

  • Compact footprint for limited floor space
  • Electric powered
  • Safe, clean and combustion-free heat
  • Industrial or commercial applications
  • Uses: Ideal for warming domestic, industrial or construction spaces
Cat Class Code
250-2445

Heater, 240V, Electric Powered

  • 9-15 kW
  • Reliable electric power
  • Great for industrial or commercial applications
  • Single phase
  • Uses: Ideal for efficiently heating business, industrial and construction spaces and other heating applications
  • Please contact a United Rentals representative for more information
green electric heater product shot
Cat Class Code
250-3436

Heater, 240V, Electric Powered

  • Compact footprint for limited floor space
  • Electric powered
  • Safe, clean and combustion-free heat
  • Industrial or commercial applications
  • Uses: Ideal for warming domestic, industrial or construction spaces
Cat Class Code
250-3486

Heater, 350,000 BTU/h, Diesel Powered, Ducted

  • 350K BTU
  • Ducted for maximum efficiency
  • Reliable diesel engine
  • Industrial or commercial applications
  • Uses: Ideal for efficiently heating business, industrial and construction spaces and other commercial heating applications
Power and HVAC
Cat Class Code
250-6447

Heater, 40/32 kW, Electric Powered

  • 136,500/102,400 BTU per hour depending on output mode
  • Ductable up to 50’ with a 14” outlet
  • 1,765 CFM fan
  • Voltage requirements: 575 V, three phase
  • Uses: Ideal for providing consistent space heating for small to medium-sized areas
  • Add this electric heater to your cart now
Cat Class Code
250-3484

Heater, 400,000 BTU, Ducted

  • 400K BTU
  • Ducted for maximum efficiency
  • Cost-efficient
  • Industrial or commercial applications
  • Uses: Ideal for efficiently heating business, industrial and construction spaces and other commercial heating applications
Cat Class Code
250-3477

Heater, 400,000 BTU/h, Natural Gas

  • 400K BTU
  • Natural gas powered
  • Cost-efficient
  • Industrial or commercial applications
  • Uses: Ideal for efficiently heating business, industrial and construction spaces and other commercial heating applications
Cat Class Code
250-3485

Heater, 420,000-500,000 BTU/h, Propane/Natural Gas or Diesel/Oil, Ducted

  • 500K BTU
  • Ducted for maximum efficiency
  • Discharge temps up to 190°F
  • Industrial or commercial applications
  • Uses: Ideal for efficiently heating business, industrial and construction spaces and other commercial heating applications
Power and HVAC
Cat Class Code
250-3406

Heater, 6 kW, 220 V, Electric Powered

  • 20,500 BTU per hour output
  • 250 CFM fan
  • Voltage requirements: 240V, 1 pH
  • Weighs 33 lbs.
  • Uses: Ideal for providing consistent space heating for small to medium-sized areas
  • Add this electric heater to your cart now
Electric Heater Pack Shot
Cat Class Code
250-6485

Heater, 60kW, 480V, Electric Powered

  • Unit dimensions 46 in. by 20 in. by 25 in.
  • Compact footprint for limited floor space
  • Overheat protection capability
  • Safe, clean and combustion-free heat
  • Uses: Ideal for heating jobsites, industrial facilities or other commercial sites
  • Add this electric heater to your cart now
Heater, 65K BTU, Electric Powered, 240v/1ph
Cat Class Code
250-3439

Heater, 65K BTU, 240v/1ph, Electric Powered

  • Compact footprint for limited floor space
  • Electric powered
  • Safe, clean and combustion-free heat
  • 65K BTU
  • Uses: Ideal for warming domestic, industrial or construction spaces
  • If you’re ready to rent this product, set your location to add it to your cart. If you need assistance, click the orange “Request Information” button to contact a Climate Solutions representative.
Heater, 65K BTU, Electric Powered, 240v/3ph
Cat Class Code
250-3434

Heater, 65K BTU, 240v/3ph, Electric Powered

  • Compact footprint for limited floor space
  • Electric powered
  • Safe, clean and combustion-free heat
  • 65K BTU
  • Uses: Ideal for warming domestic, industrial or construction spaces
  • If you’re ready to rent this product, set your location to add it to your cart. If you need assistance, click the orange “Request Information” button to contact a Climate Solutions representative.
Cat Class Code
250-2985

Heater, 80,000 BTU, Propane Powered

  • 80K BTU
  • Easily portable
  • Cost efficient
  • For commercial or industrial applications
  • Uses: Ideal for efficiently heating business, industrial and construction spaces and other heating applications
  • Please contact a United Rentals representative for more information
Electric Heater HI Temperature Pack Shot
Cat Class Code
250-6490

High-temperature Industrial Heater, 150kW, 480V, Electric Powered

  • Safe, clean and combustion-free heat
  • Ducts available to pump in heat
  • Overheat protection capability
  • Maximum temperature 300 degrees Fahrenheit
  • Uses: Ideal for heating jobsites, industrial facilities or other commercial sites
  • Add this high-temperature industrial heater to your cart now
Ground Heater Pack Shot
Cat Class Code
250-6821

Hydronic Surface Ground Heater, 10,000 sq. ft., Winter-blend Diesel

  • 10,000 square foot capacity thaw
  • 5,000' hose
  • Performance-monitoring strobe light with low-voltage requirements
  • Multiple accessories available
  • Add this hydronic surface ground heater to your cart
Hydronic Surface Heater
Cat Class Code
250-6812

Hydronic Surface Ground Heater, 3,750 sq. ft., Winter-blend Diesel

  • 3,750 square foot capacity thaw
  • 1,250' hose
  • Performance-monitoring strobe light with low-voltage requirements
  • Multiple accessories available
  • Add this hydronic surface ground heater to your cart
Ground Heater Pack Shot
Cat Class Code
250-6815

Hydronic Surface Ground Heater, 6,000 sq. ft., Winter-blend Diesel

  • 6,000 square foot capacity thaw
  • 3,000' hose
  • Performance-monitoring strobe light with low-voltage requirements
  • Multiple accessories available
  • Add this hydronic surface ground heater to your cart
Power and HVAC
Cat Class Code
250-3033

Indirect Fire Heater, 170,000 BTU/h, Lp/ng powered

  • 170,000 BTU per hour output
  • 12" recirculating duct size
  • 1,610 CFM
  • Single 12" outlet
  • Uses: Ideal for providing clean, dry heat to complete projects on time and within budget
  • Add this indirect fire heater to your cart now
Cat Class Code
250-3123

Indirect Fired Heater, 1,000,000 BTU/h, Propane/Natural Gas Dual Fuel

  • 208-240 V
  • 30 amps
  • 4,075 CFM
  • Forklift capability from all four sides
  • Uses: Ideal for heating outdoor construction sites and other large spaces
  • Add this indirect heater to your cart now
IDF Heater, Diesel, 200 BTU
Cat Class Code
250-3040

Indirect Fired Heater, 200 BTU, Diesel Powered

  • Diesel Fueled
  • High Static Pressure - 150 ft of duct capability
  • Quiet operation
  • Recirculation capabilities
  • Low Amp Draw
  • Rugged design with wheels for easy movement
white indirect fired heater
Cat Class Code
250-6525

Indirect Fired Heater, 390,000 BTU/h, Propane/Natural Gas Dual Fuel

  • 16.5L per hour propane fuel consumption/400 cubic feet per hour natural gas fuel consumption
  • 115V/20 amp power with a 20-amp max. power draw
  • 5,000 CFM
  • 1" x 16" duct or 2" x 12" duct
  • Uses: Ideal for commercial heating applications
blue cube indirect fired heater
Cat Class Code
250-3117

Indirect Fired Heater, 700,000 BTU, Propane/Natural Gas Dual Fuel

  • 28L per hour propane fuel consumption/610 cubic feet per hour natural gas fuel consumption
  • 3-phase 230V power with a 16.5-amp max. power draw
  • 2,500 CFM
  • 1" x 24" duct
  • Uses: Ideal for commercial and industrial heating applications
white towable large heater
Cat Class Code
250-3133

Indirect Heater, 1,500,000 BTU, Propane/Natural Gas Dual Fuel

  • 62L per hour propane fuel consumption/1,500 cubic feet per hour natural gas fuel consumption
  • 3-phase 208/230V hard wire power with a 36-amp max. power draw
  • 8,300 CFM
  • 1" x 24" outlet open return
  • Uses: Ideal for commercial and industrial heating applications
Cat Class Code
250-3530

Indirect Heater, 400,000 BTU, Kerosene

  • Portable for convenient relocation
  • Effective heating
  • Powered by kerosene
  • Industrial or commercial applications
  • Uses: Ideal for warming domestic, industrial or construction spaces
black heater product shot
Cat Class Code
250-2475

Indirect Heater, 400,000 BTU/h, Diesel Powered

  • 400K BTU
  • Ducted for maximum efficiency
  • Cost-efficient
  • Industrial or commercial applications
  • Uses: Ideal for efficiently heating business, industrial and construction spaces and other commercial heating applications
white towable heater on two wheels
Cat Class Code
250-3115

Indirect Heater, 420,000-500,000 BTU/h, Propane/Natural Gas Dual Fuel

  • 500K BTU
  • Ducted for maximum efficiency
  • Cost-efficient
  • Industrial or commercial applications
  • Uses: Ideal for efficiently heating business, industrial and construction spaces and other commercial heating applications
white towable heater on two axles
Cat Class Code
250-3121

Indirect Heater, 750,000 BTU, Diesel Powered

  • 750K BTU
  • Ducted for maximum efficiency
  • Cost-efficient
  • Industrial or commercial applications
  • Uses: Ideal for efficiently heating business, industrial and construction spaces and other commercial heating applications
Electric Heater Pack Shot
Cat Class Code
250-6455

Industrial Ductable Heater, 75kW, 480V, Electric Powered

  • Unit dimensions 60 in. by 36 in. by 31 in.
  • Overheat protection capability
  • Supports up to 150' ducts
  • Safe, clean and combustion-free heat
  • Uses: Ideal for heating jobsites, industrial facilities or other commercial sites
  • Add this industrial ductable heater to your cart now
yellow and black cone-shaped heater
Cat Class Code
250-3170

Infrared Heater, 115,000 BTU/h, Diesel Powered

  • 115,000 BTU per hour output
  • High fuel tank capacity
  • Takes #1 and #2 diesel fuel
  • 13 hour run time
  • Uses: Ideal for heating well-ventilated enclosed spaces
  • Add this infrared heater to your cart now
110V Electric Heater
Cat Class Code
250-3428

Portable Space Heater, 1,500W, 110V, Electric Powered

  • Plug into a standard outlet
  • Safe, clean and combustion-free heat
  • Ideal for residential or light commercial duty
  • Includes 10' electric cord
Electric Heater Pack Shot
Cat Class Code
250-3443

Portable Space Heater, 15kW, 240V, Electric Powered

  • Quiet operation
  • Safe, clean and combustion-free heat
  • Overheat protection capability
  • Built-in cable whip
  • Uses: Ideal for heating office or retail spaces
  • Add this portable space heater to your cart now
Electric Heater Pack Shot
Cat Class Code
250-3444

Portable Space Heater, 30kW, Electric Powered

  • Quiet operation
  • Safe, clean and combustion-free heat
  • Overheat protection capability
  • Built-in cable whip
  • Uses: Ideal for heating office or retail spaces
  • Add this portable space heater to your cart now
silver circular propane vaporizer product image
Cat Class Code
250-4000

Propane Vaporizer

  • Heat propane to a higher degree, producing faster vaporization
  • United Rentals offers rentals from 500,000 BTU minimum to 10,900,000 BTU maximum
  • Fuel consumption from 2.05L per hour to 6.16L per hour
  • Trust United Rentals experts to keep your propane needs supplied in a timely manner
  • Uses: Ideal for industrial and heavier commercial applications
Resources

More About Heaters

United Rentals offers a vast selection of heater models including electric heaters,heat ducting and fuel-fired options. Our inventory ranges from 10-BTU portable heaters to sizeable commercial rental heaters with up to 3.5 million BTU for heavy-duty applications. If you're looking for an industrial heater rental for large spaces with tall ceilings, we’ve got you covered. Discover the perfect construction heater rental that will keep your jobsite warm or specialty heat pumps for indoor/outdoor heating. We also rent ground thawing blankets and hydronic surface ground heaters for thawing frozen ground. Our fleet includes heaters from popular manufacturers like Heat Wago, Heat King, Patron and more. When you rent heaters from United Rentals, you can be confident that our experts will be ready to help you determine the proper heating solution to fit your project. For more information on our selection of heaters, check out our FAQs section below.

FAQs
How does HVAC heating work?

HVAC systems are made of several parts including the thermostat, furnace, evaporator coil, condensing unit, vents and refrigerator lines. The furnace is a piece of equipment that can use solar power, heat pumps, electric resistance or combustion as sources to heat air, then distribute the air through ductwork or piping.

Are infrared heaters energy efficient?

Yes, infrared heaters are energy efficient because they convert nearly 100% of electricity into usable heat. They are also easy to set up, require little to no maintenance over time and won’t add any pollutants to your space.

What heaters are safe to leave on overnight?

Never leave an electric space heater on overnight, as they can cause fire damage or injury if left unattended. The best heaters to run overnight are oil, ceramic and infrared heaters because of their heating efficiency and their cool exteriors.

Choose the Right Portable Heater

Expand the sections below for help in choosing a portable heater to rent.

How much heat output do I need?

Before you rent a space heater, know how warm you want the space to be and how much heat output in BTUs you need to achieve it. To answer the BTUs question, you’ll need to know the square footage of your space, the number of windows and doors and the height of the ceiling. The materials of the floor, walls and ceiling and the degree of insulation matters, too. An outdoor tent, for example, will need more heat to reach a comfortable temperature because it lacks insulation. Also consider the number of people who will occupy the space; more people generate more heat.

How to calculate BTU per hour

A qualified power and HVAC climate specialist can calculate the heat requirements of the space before recommending a portable heater or space heater rental. They will use the insulation factors of the space’s surfaces (walls, ceilings, floors) and the measurements of those surfaces to calculate the total BTU load, then use another formula to calculate the BTU/kW of heat required. If you know your total BTU load, you can figure out how many kW you need in a heater. Multiply the heater’s wattage by 3.412 to get BTU per hour. (A watt is equal to 3.412 BTUs.) A 15kW heater produces 51,180 BTU per hour.

As a very general rule, a well-insulated indoor space requires 10 watts of heating power per square foot, which translates to 34.1 BTU per hour.

What type of portable heater do I need?

When choosing a portable heater rental, the power source is one of the main considerations. United Rentals offers electric heaters, natural gas/propane heaters and diesel heaters, as well as heat pumps. If you choose a fuel-fired heater, you'll need to choose between direct-fired and indirect-fired.

Electric heaters

Electric heaters are the simplest choices for indoor applications because they silently generate clean, dry heat with no exhaust or carbon monoxide. Rent an electric heater to easily warm an enclosed space in a home or office. They can also be used to create warming stations on construction sites and to provide warm, dry air for drying drywall, curing concrete and tackling winter woodworking projects.

Fuel-fired heaters

Natural gas/propane heaters must be used outdoors unless you have a way to extend the flue pipe outside. If the unit is placed outside, the heat can be ducted inside through a window, door or other opening. Residential uses include heating large areas such as a garage or barn. Commercial uses includes heating tents or other outdoor events/worksites that have easy access to ventilation.

Diesel heaters produce drier heat and more precise temperature control than natural gas/propane heaters. They can be used indoors, as long as the exhaust is vented outside, or outdoors for industrial or commercial applications.

Direct-fired or indirect-fired?

Fueled-fired heaters are either direct-fired or indirect-fired. Indirect-fired heaters, in which the flame is contained in a heat exchanger, are safe for use around people, though they are more expensive and less efficient than direct-fired heaters. They are handy for special events and for projects that require drying. Diesel heaters are always indirect-fired. Direct-fired heaters, which are highly efficient and more powerful, are popular as commercial heater rentals. They require plenty of ventilation and are often used on construction sites and in large warehouses and outdoor arenas.

Heat pumps

An alternative to portable heaters, heat pumps can heat or cool large indoor or outdoor spaces, from event tents to jobsites to offices. Available in a variety of sizes, these electric-powered units are fume-free and excellent for worksites where warm, dry air is required. Smaller units plug into a standard outlet. Larger units like this 5-ton heat pump must be hardwired.

What voltage is required to run portable electric heaters?

If your power outlets are standard 115-volt outlets, you can plug in a small electric heater such as this 1.5kW model. For larger BTU/kW output, you’ll need a natural gas, propane or diesel heater.

A higher-voltage power source, on the other hand, will power the larger electric heaters, like this construction-grade 136k BTU model, which runs on 480v. If you’re not sure what voltage you have, consult your engineer or electrician. Once you verify that you have the voltage you need for the electric space heater rental you want, make sure you have the proper breaker for the amperage.