ESI Boiler Rentals, LLC, is a wholly owned subsidiary of ESI, the Steam and Power SPECIAL FORCES®. Our mobile rental boilers are STATE-OF-THE-ART and quickly available for dispatch to your project location across North America. Our dedication to customer service is SECOND TO NONE in the Industry.
We specialize in “No Hassle” Steam.




As an ESI Boiler Rentals, LLC customer, we offer the following services to best meet your needs:

  • Engineering for tie-ins and/or Foundations
  • Installation
  • Start-Up Services
  • Field Supervision
  • Project Management
  • Operator Training
  • 3D Modeling Capabilities
  • 24/7 On-Call Customer Service


ESI Boiler Rentals, LLC: The Best Boiler Supply Company

ESI Boiler Rentals maintains a fleet of portable rental boiler units to meet the temporary steam needs of our customers all across North America. We are a leader among mobile boiler rental companies and commit ourselves to our customers’ satisfaction. Natural disasters, power outages, wintertime peak load, unscheduled maintenance difficulties, or whatever your emergency situation – you can count on us.

We provide mobile boiler installation and start-up, field maintenance and operator training, project management, and 24/7 customer service. All of our mobile rental boilers are trailer-mounted for swift and easy transport. Working with us is smooth and hassle-free—precisely what you need in an emergency situation.

Our Rental Boilers

At ESI Boiler Rentals, we offer both watertube and firetube mounted boiler units. In watertube mobile boilers, the water is pushed through tubes that are surrounded and heated by combustion gasses. In firetube mobile boilers, the gas is pumped through the tubes, heating water that surrounds the tubes. The right boiler system type for you depends on your specific needs.

Because watertube boilers hold a smaller volume of water compared to their overall size, they heat up more quickly and respond to changes in load faster. This makes them the better choice for situations involving a varying or unstable load. They can also handle much higher pressures. Our watertube mobile boilers are available at maximum capacities of 30,000 PPH, 60,000 PPH, and 72,000 PPH, and can use either natural gas or #2 fuel oil.

Firetube boilers have lower operating and maintenance costs. They are, however, slower to recover when those loads dip too low, so they are better suited for situations involving a steady load. They are also restricted to lower pressures. Our firetube boilers are available at 10 HP, 125 HP, 150 HP, 300 HP, 350 HP, and 650 HP. Like our watertube boilers, they use either #2 fuel oil or natural gas.

We have the knowledge and experience needed to help you choose precisely the right type for you. Let us know the specifics of your situation, and we will direct you to the best option. In emergency situations, you can count on us to provide you with the very best solution and service customized to your need.

Our Commitment to You

Our devotion to customer satisfaction sets us apart. We have worked with more than 100 customers from industrial, utility, and commercial backgrounds, and our customers continue to return to us year after year. To hear more about why our customers trust ESI’s services, ask us to arrange a conversation between you and a past customer. Hear firsthand why we are the leader among boiler rental companies.

For dependable and high-quality boiler services anywhere across North America, let ESI Boiler Rentals take care of your emergency steam needs. Call now for your free quote!