COWB2 Oil Fired Cast Iron Boilers

When the fuel choice is oil, Lennox offers the Conservator Series oil-fired water boiler. At an efficiency rating of up to 85.2% the boiler offers excellent fuel economy.

  • Beckett Flame-Retention Oil Burner
  • Cast Iron Boiler Sections
  • Aquastat Control and circulator relay
  • Other Features:
    • Pressure Relief Valve
    • Combination Temperature/Pressure Gauge
    • Circulating Pump
    • Barometric draft control
    • Heavy gauge steel with baked-on enamel finish
    • Power supply 115/1/60

  • Lennox Logo

Click Image to Enlarge View

Energy Star ASME
Model IDModel NameInput Rng
MBH
Output Rng
MBH
IBR
Rng
GPH
Rng
Water
Cont.
Flue
Size
Pipe
Conn.
HxWxDWeight
28685COWB2-3140.0
105.0
119.0
92.0
103.0
80.0
1.00
0.75
9.661-1/436x20.5x14.5492
28686COWB2-4210.0
175.0
178.0
150.0
155.0
130.0
1.50
1.25
11.661-1/436x20.5x17.75575
28687COWB2-5280.0
245.0
236.0
209.0
205.0
182.0
2.00
1.75
13.761-1/436x20.5x21673