Firelake Horizon Model 350 Waste Oil Heaters

Model 350 Horizon Waster Oil Heater

Model 350 Horizon Waster Oil Heater

350,000 BTU Waste Oil Heater Specifications

Input (approx. BTU/hr.)

350,000 / 88,200 KCAL

Output (approx. BTU/hr.)

300,000 / 75,600 KCAL

Stack size

8″ / 20.3 cm

Shipping Weight

735 lbs./334 kg.

Heater dimensions (L x W x H)
Includes outside measurements of fan and burner

62″ x 57″ x 33″ / 158 cm x143 x 84

Electrical requirements (maximum circuit protection)

115/60 30A (15A for export)

Approx. fuel consumption

2.5 GPH

Blower CFM


Outlet Air Temperature

170 F

Compressed air requirements

2 CFM @ 40 PSI / .057 m3/min.@.28Mpa

Agency listings



US: 5,067,894 utiliy, 331,104 des.
CAN: Pat. 2,029,366, 69,374 des., 69,157 des.


Crankcase oil, transmission and hydraulic fluids, as well as other petroleum-based lubricants (any weight combinations up to SAE 50 as well as #1 and #2 fuel oil.)

Oil transfer pump

18 GPH @ 35 PSI (68 LPH @ .24 Mpa)


Why Choose Firelake?

Firelake Waste Oil Heaters are designed from the ground up to burn waste oil and other petroleum based products to provide heat for your shop. Over time, Firelake waste oil heaters and boilers have become the premier waste oil heating equipment in the industry.

  • Easy to Maintain: Firelake’s three-pass heater models are easy to maintain with clean-out panels on both ends of the heat exchanger
  • Durability: Designed for a maximum heat transfer with 100% steel corrosion resistant fire chamber and heat exchanger


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