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Excelsior EXC 3 Pass High Efficiency Oil Boiler

Excelsior EXC

The updated Excelsior oil boilers feature an advanced heat exchanger for efficient, rapid heat transfer to heating zones.

Customers appreciate increased energy savings thanks to its triple-pass design, resulting in lower flue gas temperatures and a significant increase in performance.

Features

  • 93.4 - 214.7 MBH
  • Efficiency up to 87% AFUE, ENERGY STAR® Certified
  • Advanced High Efficiency Three Pass Heat Exchanger Design
  • High Limit Control with:
    • LED display
    • Easy-To-Program Dial Settings
    • Boiler Water Temperature Reset
    • Low Water Cut-Off Functionality
  • Compact Footprint
  • Burners and Venting Options
  • Reversible full swing door
  • Warranty
    • 20-Year Non-Prorated Limited Warranty (Residential)
      5-Year Parts Limited Warranty (Residential)

Options

Beckett, Carlin, Riello, or Less Burner options
Taco ECM Pump or Less Pump options
Direct Vent 3/4/5 section models only (Requires Riello Burner and Direct Vent Kit)

Installation

(See Installation, Operation and Maintenance Manual for complete instructions)

Documents / Resources

Current Documents
Archived Documents

Brochure

Excelsior EXC Series Brochure Rev. 11-19-25

Installation & Operation Manual

Excelsior EXC Series IOM Rev. A

Warranty

Dunkirk Cast Iron Consolidated Warranty Eff. 11/24 Rev. E

Engineering Documents / Resources

Excelsior EXC Beckett Wiring Diagram Rev. A
Excelsior EXC Carlin Wiring Diagram Rev. A
Excelsior EXC Riello Wiring Diagram Rev. A

There are no documents archived for this product

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