Lennox, Oil-Fired Water Boiler, 245,000 Btuh, 13.7 Gallon Tank, 84.3% AFUE, COWB3-5

Cat # : 47L28

Model/Part # : COWB3-5

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Brand Lennox
Catalog Number 47L28
Model/Part Number COWB3-5
Minimum Order Quantity 0.0
Base Unit of Measure Unit(S)
Product Depth 21 IN
Product Height 36 IN
Product Width 20.5 IN
Gross Weight 683 LB
Family COWB3
Heating Capacity 245, 000 Btuh
Efficiency 85.2 AFUE
Family COWB3
Series Elite
Heating Capacity 210 ,000 Btuh
Efficiency 84% AFUE
Product Voltage 120V
Product Depth 21 Inch
Product Width 20.5 Inch
Product Height 36 Inch
Gallon Capacity 13.7 Gallon
Ignition Type Electronic Intermittant Pilot

Product Overview

COWB3 Boiler

Standard-efficiency, oil-fired water boiler

Built with the finest quality components, including a Beckett® oil burner and a durable cast iron heat exchanger, the COWB3-5 boiler delivers quiet, efficient performance year after year.

1.75 Input GPH, 245 Input MBH, 210 MBH Heating Capacity

Energy Efficiency

  • Beckett® oil burner—sets the standard for reliable, fuel-efficient heating
  • Domestic hot water coil—optional tankless coil provides hot water for virtually no cost throughout the colder months

Home Comfort

  • Sealed-combustion design—provides quiet, healthy and draft-free heating
  • Easy integration—works with traditional radiator systems to provide precise heating comfort, regardless of outdoor temperatures

Reliable Performance

  • Cast iron heat exchanger—designed for long-lasting durability



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