CTB-350, Waste Oil Furnace, Used Oil Furnace, Furnace, Clean Burn, Model CB-200, 350,000 BTU/hr.


The Clean Burn Model CTB-350 waste oil boiler has an input rating of 350,000 BTU/hr and an output rating of 260,00 BTU/hr. The CTB-350 is UL listed for use in central heating systems.

With the mid-sized CTB-350, you spend 30 minutes cleaning every 1000 hours of operation. It is uniquely designed for installation flexibility. Engineered for use as a single boiler unit, or it can be used in combination with any Clean Burn boiler to create a system perfectly sized for any facility.


 Three-pass heat exchanger creates more heat efficiency

Low-mass water design provides quick start -up

Patented burner engineered exclusively for waste oil

System is pre-wired, ready for installation

Narrow cabinet designs provide installation flexibility

Unequaled service and support from Clean Burn Distributors

Model CTB-350 Specs.
BTU/hour input: 350,000 (102 kW)
BTU/hour output: 260,000 (76.2 kW)
Fuels Used oils: Crankcase,ATF, hydraulic
Fuel oils: #2, #4, and #5 fuel oil
Heating Surface 68 sq. ft. / 6.3 sqM
Boiler water volume 12 gal. / 45.4 L
Design water flow per coil 12 gal. / 45.4 L
Cabinet dimensions 56″ L x 34″ W x 34.5″ H
142cm x 86cm x 88cm
Overall dimensions
(with burner/breach/plumbing)
74″ L x 39.25″ W x 41″ H
188cm x 100cm x 104cm
Approx. Weight 1240 lbs. / 562.4 kg
Electrical Requirements 115 VAC 60 Hz single phase*
*230V/ 50Hz units also available
Maximum oil consumption 2.5 GPH / 9.5 lph
Stack size 8″ / 20cm
Air compressor required 2.5 CFM @ 25 PSI
4.25 m3/h @ 1.7 bar
Recommended clean-out 1000 hours

*Values indicated above are nominal. Actual values will vary depending on fuel and installation.


CTB-350 User Manual

International Manual

CTB-350 Bid Specs

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