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WTGO Series 4 Oil-Fired Water Boiler

  • wtgo-series-4-img.jpg
  • Oil-fired water boiler with cast iron sections
  • 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
  • Available assembled or as a knockdown for installation areas with limited space

Technical Data

Model Burner Input Rating GPH Burner Input Rating MBH Heating
Capacity (MBH)
Net
Ratings (MBH)
AFUE Tankless Heater
Intermittent Draw Rating
Draft Loss
Through
Boiler
(In. w/c)
Rectangular (In.) Round (In.) Height (Ft.) Approx.
Shipping Weight
(Lbs.)
Energy Star
WTGO-3LR 0.70 98 86 75 86.4 3.25 0.10 8x8 6 15 560  
WTGO-3LD 0.95 133 115 100 86.0 3.25 .010 8x8 6 15 560  
WTGO-3R 0.80 112 98 85 86.2 3.25 .020 8x8 6 15 610  
WTGO-3RD 0.80 112 98 85 87.0 3.25 .010 8x8 6 15 610 YES
WTGO-3D 0.95 133 115 100 86.0 3.25 .020 8x8 6 15 610  
WTGO-4R 1.00 140 122 106 86.2 3.75 .010 8x8 6 15 660  
WTGO-4RD 1.00 140 123 107 87.0 3.75 .010 8x8 6 15 660 YES
WTGO-4D 1.20 168 146 127 86.0 3.75 .010 8x8 6 15 660  
WTGO-5R 1.20 168 147 128 86.1 4.00 .015 8x8 7 15 775  
WTGO-5RD 1.20 168 148 129 87.0 4.00 .015 8x8 7 15 775 YES
WTGO-5D 1.45 203 176 153 86.0 4.00 .015 8x8 7 15 775  
WTGO-6R 1.40 196 171 149 86.1 4.25 .015 8x8 7 15 875  
WTGO-6RD 1.40 196 173 150 87.0 4.25 .015 8x8 7 15 875 YES
WTGO-6D 1.75 245 213 185 86.0 4.25 .015 8x8 7 15 875  
WTGO-7R 1.60 224 196 170 86.0 5.50 .015 8x8 8 15 930  
WTGO-7RD 1.60 224 197 171 87.0 5.50 .015 8x8 8 15 930 YES
WTGO-7D 2.00 280 244 212 86.0 5.50 .015 8x8 8 15 930