• Efficiency:  Up to 87% AFUE, ENERGY STAR® Certified (EXB4075, EXB5100, EXB6130 and EXB7165)
  • Capacity: Multiple Firing Rates
    • 4 Section – 105 and 126 MBH
    • 5 Section – 140 MBH
    • 6 Section – 182 MBH
    • 7 Section – 231 MBH
  • Heat Exchanger: Cast Iron
  • Combustion: Atmospheric
  • Venting: Vertical or Direct Vent
  • Boiler Type: Hot Water
  • Boiler Control Module: Hydrolevel Fuel Smart HydroStat Control – combination Low Water Cutoff with boiler temperature reset and circulator control
  • User Display Interface: Digital display with easy-to-set dial-type limit settings
  • Heat Exchanger: High efficiency, cast iron, three-pass design with reversible swing door and target wall. Efficiency baffles/liner by model
  • Combustion: Oil burner with protective cover and a flexible oil line
  • Electrical: Wiring harness with Molex connectors and a burner electrical disconnect
  • Other
    • Temperature/pressure gauge
    • 3/4″ ASME relief valve
    • Drain valve
    • Textured painted steel jacket

  • Beckett or Riello Burner
  • Manual Reset High Limit with Plug-in Molex Connectors
  • Direct Vent

  • Easy-to-Service
  • Flexible oil line combined with an easy access heat exchanger with a dual-hinge swing door (right or left mount option)
  • Wide flue ways for easy cleaning
  • Sight glass for flame observation
  • Removable 1/4″ test port for draft overfire reading

Brochure
Excelsior EXB Brochure Rev. 6/12
Excelsior EXB Brochure Rev. 7/13
Excelsior EXB Brochure Rev. 12/14
Excelsior EXB Brochure Rev. 6/09
Excelsior EXB Brochure Rev. 4/09
Excelsior EXB Brochure Rev. 4/08
Excelsior EXB Brochure Rev. 9/15
Excelsior EXB Brochure Rev. 10/15
Excelsior EXB Brochure Rev. 8/17
Excelsior EXB Brochure Rev. 1/18
Engineering Documents / Resources
Excelsior EXB Direct Vent Supplemental Instructions Rev. B
Excelsior EXB Knockdown Instructions Rev. B
Excelsior EXB Knockdown Instructions Rev. A.
Excelsior EXB Vent Connection Kit Instructions Rev. B
Installation & Operation Manual
Excelsior EXB IOM Rev. B 07/08
Excelsior EXB IOM Rev. B 5/12
Excelsior EXB IOM Rev. A 05/12
Excelsior EXB IOM Rev. E 12/14
Excelsior EXB IOM Rev. D 12/13
Excelsior EXB IOM Rev. D 1/09
Excelsior EXB IOM Rev. C 08/12
Excelsior EXB IOM Rev. C 11/08
Excelsior EXB IOM Rev. A 04/08
Excelsior EXB IOM Rev. F
Parts Lists
Excelsior EXB Parts Rev. C 08/12
Excelsior EXB Parts Rev. B 05/12
Excelsior EXB Parts Rev. E 11/13
Excelsior EXB Parts Rev. D 02/13
Excelsior EXB Repair Parts Rev. A
Excelsior EXB Parts Rev. B 08/08
Excelsior EXB Parts Rev. E 02/10
Excelsior EXB Parts Rev. D 10/09
Excelsior EXB Parts Rev. C 01/09
Excelsior EXB Parts Rev. F
Parts Manual
Excelsior EXB Parts Rev. H
Excelsior EXB Parts Rev. J
Product Bulletin
Excelsior EXB Product Bulletin 3/10/09
Excelsior EXB Product Bulletin 9/29/08
Excelsior EXB Product Bulletin 4/8/08
User Manual
Excelsior EXB User’s Manual Rev. B
Excelsior EXB User’s Manual Rev. A
Oil Equipment Home Owners Instructions
Venting Addendum
Excelsior EXB Direct Vent Addendum Rev. B
Warranty
Excelsior EXB Warranty Rev. 4/08
Dunkirk Consolidated Boiler Warranty Rev. D
Dunkirk Consolidated Boiler Warranty Rev. E

product-1018

Very pleased with the work and the way it performs.

Stephen Almy
Product Reviewed:
Excelsior EXB Series
product-1018

Highly recommended by contractor and a great warranty.

Jody Rupert
Product Reviewed:
Excelsior EXB Series
product-1018

So far it is quiet and efficent.

Glenn Barnes
Product Reviewed:
Excelsior EXB Series
product-1018

I would recommend this product. This is not my 1st dunkirk boiler. I had one in a previous home that i owned. The contractor (Oms Heating & Plumbing) that installed boiler, I would highly recommend. He did a very neat and professional job

Paul Ott
Product Reviewed:
Excelsior EXB Series
product-1018

Compact size, excellent price, functional.

Anonymous
Product Reviewed:
Excelsior EXB Series