Reznor Waste Oil Heater Advantages
No doubt that waste oil heaters can be an economical and environmentally friendly way to heat your garage, home and etc. If you have access to a sufficient supply of waste oil, you can heat your home for nothing when relying on a waste oil heater. Even if you purchase your waste oil, you will find it one of the cheapest heating options available. And by reusing used waste oil, you are also making a positive choice for the environment. Waste oil cannot be safely disposed of in landfills or waterways. Waste oil heaters help turn what would otherwise be a hazardous waste material into a useful resource.
Waste Oil Furnaces and EPA Standards

Reznor Heater for Garage
You should keep in mind that when burning, waste oil has little odor or smoke, if you have a quality waste oil furnace. However, the best waste oil heaters will burn the oil cleanly and exceed EPA standards.
Maintaining waste oil heaters requires little effort. Remember that you’ll need to periodically clean out the residual ash and dust from inside the heater in order to maximize the efficiency of the unit. The filter needs to be washed or replaced occasionally.
Waste Oil vs. LP Gas
The energy potential of waste oil is much higher than that of regular LP gas. For instance, used motor oil has between 150,000-180,000 BTU per gallon and used vegetable oil has 128,000 BTU per gallon, while LP gas only has 92,000 BTU per gallon.
Reznor Heaters and Furnaces
Reznor is one of the most popular manufacturers of waste oil heaters and furnaces (read more about Reznor garage heaters). No doubt that these waste oil heaters have a huge financial and environmental benefit and should be seriously considered by a heat source by any home owner.
Reznor waste oil heaters can burn almost any used lubricants. The list of acceptable fuels to be burned includes transmission fluid, waste oils up to 50 weight, and #2 fuel oil.
The units of this famous brand are available in 4 sizes, ranging from 140000 btu’s to 500000 btu’s. Model RA and RAD unit heaters are CSA certified to UL Standards and meet EPA requirements for onsite recycling of used oils.
Here are some advantages of Reznor Waste Oil Heaters:
- Free heat.
- Limited liability on waste oil disposal.
- Elimination of disposal cost.
- Easier, cleaner and safer system for handling, storing and elimination of waste oils.
- If an approved and licensed transporter hauls your waste oil, you are still liable for any cleanup or removal action incurred. Burning your oil on site eliminates your liability.
- Federal law states that the generator of used oil is responsible for the waste forever; however, if you burn it on site, your liability ends.
- When underground storage tanks with capacities of 1100 gallons or less are used for heating oil, they are exempted from the Federal UST Regulations.
| BTUs per hour Input | 140,000 | 235,000 | 350,000 | 500,000 | |
| Model # | Fan | RA140 | RA235 | RA350 | RA500 |
| Model # | Ductable | RAD140 | RAD235 | RAD350 | RAD500 |
| Fuel Flow Rate(GPH) | 1.0 | 1.75 | 2.5 | 3.57 | |
| Height (inches) | 32-1/8 | 32-1/8 | 41-1/8 | ||
| Width (inches) | 47-1/2 | 57-1/2 | 72-3/4 | ||
| Depth (inches) | RA | 37-1/8 | 38-5/8 | 45-1/4 | |
| Depth (inches) | RAD | 47-3/4 | 51-1/8 | 57-1/4 | |
| Cubic Feet/Min. (Free Air-RA) | 2,000 | 3,200 | 5,000 | 6,200 | |
| Flue Size (inches) | 8 | 8 | 8 | 10 | |
| Net Weight (lbs.) | RA | 290 | 343 | 525 | 750 |
| Net Weight (lbs.) | RAD | 352 | 410 | 650 | 850 |
| Electric | 115VAC | 115VAC | 115VAC | 230VAC | |
| Circuit | RA | 13 AMPS | 14 AMPS | 22 AMPS | 17 AMPS |
| Circuit | RAD | 24 AMPS | 24 AMPS | 29 AMPS | 20 AMPS |
Standard Features of Reznor Waste Oil Heaters:
•   Automatic, thermostat controlled operation
•   10-year combustion chamber / heat exchanger limited warranty
•   Remote pump system provides a metered flow of fuel
•   Oil preheating system (U.S. Patent No. 5,080,579)
•   Air atomizing burner
•   Built-in disconnect switches (pump and heater)
•   Permanently lubricated fan or blower motor with internal overload protection
•   Operation hour meter
•   24-volt thermostat
•   Barometric draft regulator
•   Electric spark ignition with electronic cad-cell flame safety system
•   Piston air compressor with replaceable filter
•   Fan and limit controls
•   High temperature limit control
•   Terminal block wiring
•   Flexible fuel line and built-in tray for service to the burner and nozzle (without disconnecting the fuel line)
•   Backflow sensor – CSA certified models
•   Large, easily accessible service panels designed to facilitate combustion chamber/ heat exchanger maintenance
•   Observation and overfire draft sampling ports
•   Supply line filter system with a disposable strainer and dirty filter indicator gauge
•   Individually adjustable horizontal louvers
•   Full safety fan guard or blower inlet and belt guards
•   Baked-on enamel finish
•   4-point threaded hanger connectors – Optional Features – Factory Installed
•   High altitude operation – Optional Features – Field Installed
•   Vertical louvers (Sizes 140, 235, and 350)
•   High altitude conversion kits (Sizes 235 and 350)
•   250-gallon workbench oil tank with or without heater stand (stand available for RA 140 and 235 only)
•   Hanger kit
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