
EnergyLogic EL-500B
The largest EnergyLogic waste oil boiler, sized for big hydronic heating loads in fleet, municipal and industrial buildings.

EL-500B at a glance
| Heat input | 500,000 BTU/hr |
|---|---|
| Fuel flow | 3.6 gal (13.6 L)/hr |
| Max water output temp | 230 °F (110 °C) |
| Domestic hot water | 8.0 gal (30 L)/min at 100 °F rise |
| Boiler capacity | 52 gal (196.8 L) |
| Dimensions | 45" H × 32" W × 68" D |
| Exhaust flue | 10" diameter |
| Electrical | 115 VAC, 60 Hz, 20 A |
| Shipping weight | 1,550 lb with tank / 1,125 lb without |
Who the EL-500B is for
The largest EnergyLogic waste oil boiler, sized for big hydronic heating loads in fleet, municipal and industrial buildings.
Best fit: Large facilities with radiant-floor or hydronic heating and a steady supply of used oil.
Standard equipment
Integrated air compressor, barometric damper, draft gauge, precision fuel-meter pump, wet-floor heat exchanger, analog hour meter, 250 gal single-wall tank.
Approved fuels
Used crankcase oil, ATF, hydraulic fluid, No. 2 fuel oil, diesel.
Sizing and savings
Square footage is only a starting point. Ceiling height, the number and size of overhead doors, insulation and how much used oil your shop produces all affect which size is right. We'll ask about all four before recommending a unit.
How much you save depends on how much used oil you generate, what you pay for heating fuel now, and how long your heating season runs. Our waste oil savings calculator gives a quick estimate.