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Weil-McLain 386901007 UO-4 Ultra 127,000 BTU Oil Boiler with Circulator (Burner Sold Separately)


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Retail : $4,147.00 - $870.87 =
$3,276.13 You Save (21%)

Product details

Weil-McLain 386901007 UO-4 Ultra, 127,000 BTU, Cast Iron, with Circulator, Oil Boiler


  • Optional Advanced Features Module that provides indoor/outdoor reset, DHW priority, stage firing and more
  • Dedicated water-only oil boiler
  • Flexible direct or chimney venting - no power assisted fan needed
  • Reversible swing-away burner door
  • Three-pass cast iron heat exchanger with captured elastomer seals
  • Energy Star Rating
  • 87% AFUE Series 3

Burner Option

  • Beckett NX — (Chimney or Direct Vent)
  • Beckett AFG — (Chimney Vent Only)
  • Carlin — (Chimney Vent Only)
  • Riello — (Chimney or Direct Vent)
See All Weil-McLain Products

Specification Sheet

Basic Information
MPN ? Manufacturer Part Number 386-901-007
UPC / GTIN 672619204010
Manufacturer Weil-McLain
Series ? A manufacturer's grouping of items that match, coordinate, or complement each other. Ultra
Dimensions and Measurements
Weight ? Weight 0.99
BTU Input 127,000
AFUE 87%
Vent Size (Inches) 8 x 8
Characteristics and Features
Material ? The material(s) used in the construction of the product. Cast Iron
Boiler Type Residential
Fuel Type Oil
Venting Chimney or Direct Vent
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