Got Waste Oil?

Omni offers the largest selection of UL and CUL listed Waste Oil Heaters & Boilers in the industry. Our high grade stainless steel heat exchangers and cast iron boilers are built to last and backed by a warranty to match. If you need a high-output, low maintenance heater or boiler, that will eliminate your heating costs, used oils and hauling fees, we have the solution.

Waste Oil Heater Models 75K-500K BTU

Omni OWH-75 Waste Oil Heater

Omni OWH-75

75,000 BTU Omni Waste Oil Heater

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Omni OWH-150 Waste Oil Heater
July 08, 2019

Omni OWH-150

150,000 BTU Omni Waste Oil Heater

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Omni OWH-250 Waste Oil Heater
May 26, 2019

Omni OWH-250

250,000 BTU Omni Waste Oil Heater
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Omni OWH-350 Waste Oil Heater
May 26, 2019

Omni OWH-350

350,000 BTU Omni Waste Oil Heater

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Omni OWH-500 Waste Oil Heater
May 26, 2019

Omni OWH-500

500,000 BTU Omni Waste Oil Heater

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Omni Bi-Directional Heater Upgrade
May 26, 2019

Omni Bi-Directional

350,000/500,000 BTU Omni Waste Oil Heaters

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Need an oil tank?
Work bench tank

The Omni work bench tank/stands are ideal for areas with limited space. Made from 11 gauge steel these tanks can literally take a beating. Use it as a work bench as the pump, filter and plumbing are neatly tucked away leaving the surface area clutter free.

Waste Oil Boiler Models 90K-500K BTU

Omni OWB-9/15

90,000/150,000 BTU Waste Oil Boilers

Omni OWB-25

250,000 BTU Waste Oil Boiler

Omni OWB-35

350,000 BTU Waste Oil Boiler

Omni OWB-50

500,000 BTU Waste Oil Boiler

Cast Iron, 3 pass 
Scotch Marine Boiler

85% Efficiency, Burns Clean, Zero Smoke.
This unique wet base design passes the hot combustion gases three times through the boiler under negative pressure. This maximizes the gases contact with the boiler's water surface area.

About Us

  • 1986 - First UL listed waste oil fired furnace setting an industry standard.
  • 1989 - First waste oil burner complete system patent.
  • 1990 - First & only patented non-carboning pre-heater block design.
  • 1992 - First UL Listed waste oil fired boilers.
  • 1993 - First patented oil flow control supply pump, adjustable for any application.
  • 1996 - First & Only Portable Radiant waste oil heater.
  • 1998 - First & only patented waste oil fired air conditioner. Still the only one in        existence.
  • 2003 - First & only Bi-Directional waste oil furnace that blows hot air on both sides of the heater.
  • 2010 - First & only double swing out doors for easy chamber access and maintenance.
  • 2015 - Worlds smallest, first and only 75,000 BTU waste oil fired heater.
  • 2016 - New and Improved Self Contained Pressure Burner.


Contact Us



Opening time Mon-Fri: 7:30 - 5:00
Phone number 509-629-6261