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Product Type:

oil-fired residential

WTGO Oil Boiler
Where to Buy
Contact us today to obtain a contractor or distributor in your area.
  • High capacity/high efficiency tankless heater
  • Quick open top and swing-away burner door with full chamber access increases visibility for inspection and servicing
  • Includes factory-wired circulator, service switch and Weil-McLain exclusive captured elastomer seals for added reliability
  • Recessed target wall design protects unit from flue brushes
  • Two flue outlets- rear and top - for complete venting flexibility
  • Oil-fired water boiler with cast iron sections
  • Energy Star Rating
  • Available assembled or as a knockdown for installation areas with limited space
  • 85% AFUE
Model           I=B=R Burner Cap (GPH)DOE Heating Capacity (MBH)Net AHRI Ratings (MBH)Min. Chimney Size: Rectangular (in)Annual Fuel Utilization
Efficiency (AFUE)
WTGO-30.951151008 x 885.3
WTGO-3L0.95114998 x 884.5
WTGO-41.201451268 x 885.0
WTGO-51.451751528 x 885.0
WTGO-61.752121848 x 885.0
WTGO-72.002422108 x 885.0
WTGO-82.302662318 x12--
WTGO-92.552952578 x12--