EG-65 - 149,000 BTU Output Cast Iron Steam Boiler Package, Spark Ignition - Series 6 (NG PIDN), With Tankless Opening

Weil-McLain EG-65 Series 6 – Natural Gas Cast Iron Steam Boiler, 238 MBH Input The Weil-McLain EG-65 Series 6 gas-fired steam boiler is engineered for high-output residential and light commercial systems. Designed for low-pressure steam distribution, this model provides 149,000 BTU/hr net output (I=B=R) and 84% AFUE efficiency. Its cast iron sectional heat exchanger and integrated control components deliver lasting performance in demanding field conditions. Engineering and Application Overview Model: EG-65 (Series 6) System Type: Atmospheric cast iron steam boiler Fuel: Natural Gas Gross Input: 238,000 BTU/hr DOE Heating Capacity: 200,000 BTU/hr Net I=B=R Steam Output: 149,000 BTU/hr Ignition Type: Intermittent electronic ignition Vent Size: 7-inch diameter, natural draft Efficiency: 84% AFUE Maximum Allowable Working Pressure: 15 psi (ASME H-stamped) Standard Features Automatic Vent Damper Pre-installed to reduce flue losses during off-cycles, improving seasonal efficiency. Integrated Low Water Cut-Off (LWCO) Protects the boiler from dry-firing and meets steam boiler code requirements. Cast Iron Heat Exchanger Sectional, pinned design offers high heat retention and is pressure-tested to ASME standards. Service Accessibility Hinged control access panel, removable jacket sides, and simplified electrical connections support efficient field servicing. Tankless Heater Opening (optional use) Can be configured for a tankless coil in specific block models. Installation & Integration This model is suitable for one-pipe and two-pipe steam systems with gravity or pumped condensate returns. Contractor setup considerations include: Correct riser sizing to reduce wet steam carryover Proper near-boiler piping per Weil-McLain specification Combustion air supply and flue configuration Compliance with state/local mechanical codes Installation must be performed by a licensed professional with steam boiler experience. Proper venting, header piping, and control wiring are essential for long-term performance. Specifications Snapshot Attribute Value Input (BTU/hr) 238,000 DOE Heating Capacity (BTU/hr) 200,000 Net Steam Output (BTU/hr) 149,000 Fuel Natural Gas AFUE 84% Ignition Intermittent electronic Heat Exchanger Material Cast iron Max. Steam Pressure 15 psi Vent Size 7" Contractor Notes The EG-65 is designed to reduce labor time with its factory-assembled control systems and accessible service panels. It is well-suited for retrofit work where efficiency upgrades and reliability are key. The boiler’s footprint and venting requirements should be verified in advance to ensure compatibility with the mechanical room layout. Weil-McLain EG-65 Series 6 – Natural Gas Cast Iron Steam Boiler, 238 MBH Input The Weil-McLain EG-65 Series 6 gas-fired steam boiler is engineered for high-output residential and light commercial systems. Designed for low-pressure steam distribution, this model provides 149,000 BTU/hr net output (I=B=R) and 84% AFUE efficiency. Its cast iron sectional heat exchanger and integrated control components deliver lasting performance in demanding field conditions. Engineering and Application Overview Model: EG-65 (Series 6) System Type: Atmospheric cast iron steam boiler Fuel: Natural Gas Gross Input: 238,000 BTU/hr DOE Heating Capacity: 200,000 BTU/hr Net I=B=R Steam Output: 149,000 BTU/hr Ignition Type: Intermittent electronic ignition Vent Size: 7-inch diameter, natural draft Efficiency: 84% AFUE Maximum Allowable Working Pressure: 15 psi (ASME H-stamped) Standard Features Automatic Vent Damper Pre-installed to reduce flue losses during off-cycles, improving seasonal efficiency. Integrated Low Water Cut-Off (LWCO) Protects the boiler from dry-firing and meets steam boiler code requirements. Cast Iron Heat Exchanger Sectional, pinned design offers high heat retention and is pressure-tested to ASME standards. Service Accessibility Hinged control access panel, removable jacket sides, and simplified electrical connections support efficient field servicing. Tankless Heater Opening (optional use) Can be configured for a tankless coil in specific block models. Installation & Integration This model is suitable for one-pipe and two-pipe steam systems with gravity or pumped condensate returns. Contractor setup considerations include: Correct riser sizing to reduce wet steam carryover Proper near-boiler piping per Weil-McLain specification Combustion air supply and flue configuration Compliance with state/local mechanical codes Installation must be performed by a licensed professional with steam boiler experience. Proper venting, header piping, and control wiring are essential for long-term performance. Specifications Snapshot Attribute Value Input (BTU/hr) 238,000 DOE Heating Capacity (BTU/hr) 200,000 Net Steam Output (BTU/hr) 149,000 Fuel Natural Gas AFUE 84% Ignition Intermittent electronic Heat Exchanger Material Cast iron Max. Steam Pressure 15 psi Vent Size 7" Contractor Notes The EG-65 is designed to reduce labor time with its factory-assembled control systems and accessible service panels. It is well-suited for retrofit work where efficiency upgrades and reliability are key. The boiler’s footprint and venting requirements should be verified in advance to ensure compatibility with the mechanical room layout.