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Weil McLain Ultra Oil Print E-mail

Ultra Oil Boiler  weilmclain_logo

Models: UO-3 (0.80 GPH), UO-3 (1.00 GPH), UO-4, UO-5

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Features

  • 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
  • 86% AFUE



 

ModelI=B=R Burner Cap (GPH)DOE Heating Capacity (MBH)Net I=B=R Ratings (MBH)Min. Chimney SizeAnnual Fuel Utilization Efficiency (AFUE)
UO-3 (0.80 GPH) 0.80 98 85 8 x 8 86.5
UO-3 (1.00 GPH) 1.00 122 106 8 x 8 86.5
UO-4 1.20 146 127 8 x 8 86.2
UO-5 1.40 172 150 8 x 8 86.5

http://www.weil-mclain.com/en/assets/pdf/UO_Series_2_Brochure_1012.pdf