386-701-029 Weil McLain WTGO-4R Series-4 86.2% AFUE Oil Boiler With Circulator And Tankless Coil Less Burner 140 Input MBH 106 Net Output MBH

• Oil Boiler
• Type Water
• Applicable Standard ASME H, CSA (Canada and US), DOE, AHRI
• Supply Connection 1-1/4" Flanged
• Return Connection 1-1/2"
• DOE Heating Capacity 145 MBH
• Net IBR Rating 126 MBH
• AFUE Rating 86.2 Percent
• Firing Rate 1.2 GPH
• Boiler Dimensions 20-1/4" Length x 30-7/8" Width x 35-5/8" Height
• Boiler Material Cast Iron
• Chimney Size 8" Length x 8" Width x 15' Height (Rectangle), 6" Diameter x 15' Height (Round)
• Tankless Heater Capacity 3.75 GPM
• Vent Size 1/2"
• Mounting Type Floor Mount
• Relief Valve Details 30 PSI ASME Relief Valve
• Pressure Rating 50 PSI
• Warranty 10 Year (Heat Exchanger), 2 Year (Parts)
• Options High-Efficiency Flame-Retention Oil Burner, Vent Damper Kit, Indirect-Fired Water Heaters
• Inclusions/Features Assembled Cast Iron Section Assembly, Tankless Heater, Insulated Steel Jacket, Aluminized Steel Flue Collector Hood, Swing-Away Burner Mounting Door, Refractory Blanket and Target Wall in Combustion Area, Taco 007 Circulator, High Limit Control with Circulator Relay and LWCO Function, Electrical Junction Box and Cover Plate, Two Vent Pipe Brackets, Pressure/Temperature Gauge, Drain Valve, Barometric Damper
• Application Residential, Light Commercial, Multiple Boilers, Radiant Heating

Specification Sheet

High Efficiency, High Capacity/High Efficiency Tankless Heater. Quick Open Top and Swing-Away Burner Door with Full Chamber Access Increases Visibility for Inspection and Servicing. In cludes 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. Made in USA. 10 Year (Heat Exchanger), 2 Year (Parts) Warranty.