Weil-mclain 672619209534 Evergreen Hot Water Gas Boiler 155 Mbh 95.1% Afue Modulating Condensing Floor Mount

Product Description

The WEIL-MCLAIN 672619209534 is a modulating condensing hot water gas boiler from the Evergreen collection, designed for residential heating applications where efficiency and reliability are top priorities. This floor-standing unit achieves a 95.1% AFUE rating, meaning it converts nearly all of its fuel into usable heat. It accepts both natural gas and propane, giving installers flexibility depending on the job site. The boiler delivers an input of 155 MBH and a net heat rating of 143,000 BTU per hour, making it well-suited for larger residential heating loads. A stainless steel fire tube heat exchanger sits at the core of this unit, paired with a non-metallic base for corrosion resistance and long service life. The 5:1 turndown ratio allows the burner to modulate output down to roughly 20% of capacity, which reduces short cycling and improves comfort across variable load conditions. Four pump and auxiliary outputs give the installer control over multiple heating zones or system components from a single boiler. The unit supports up to eight boilers in a multiple boiler configuration with lead/lag rotation, making it a strong choice for staged residential or light commercial systems. Modbus connectivity allows integration with building management systems for facilities that require centralized monitoring and control. Venting is compatible with PVC, CPVC, polypropylene, and stainless steel vent pipe up to 100 feet, giving contractors multiple options to match the installation. A boiler circulator is included with the unit. The Evergreen boiler features a slate gray cover, direct spark ignition, and a maximum operating pressure of 30 psi. Dimensions are approximately 42 and three quarters inches tall, 17 and five eighths inches wide, and 18 and five eighths inches deep. The system capacity is 3.2 gallons. Supply and return pipe connections are 1 and one quarter inches. The unit operates on 120/24V single phase power. It is CEC compliant for sale in California, CSA certified, and Energy Star compliant. This boiler is a dependable choice for HVAC contractors installing high-efficiency hydronic heating systems.

• 95.1% AFUE modulating condensing boiler with 5:1 turndown ratio for precise output control and reduced short cycling
• Stainless steel fire tube heat exchanger with non-metallic base for long-term corrosion resistance
• Supports up to 8 boiler multiple boiler sequencing with Modbus to BMS connectivity and 4 pump/auxiliary outputs

Product Highlights

The Weil-McLain Evergreen 672619209534 delivers 95.1% AFUE efficiency and 155 MBH input in a floor-mount condensing gas boiler built for residential hydronic heating. Flexible venting, multi-boiler staging, and an included circulator make it a complete, installer-ready solution.

Product Information

Standard Information

• Brand: WEIL-MCLAIN
• Manufacturer Part Number: 672619209534

Technical Specifications

• Collection: Evergreen
• Application: Residential
• AFUE: 95.1%
• Input Capacity: 155 MBH
• Net Heat Rating: 143,000 BTU per hour
• Fuel Type: Natural Gas, Propane
• Media: Hot Water
• Condensing: Yes
• Ignition System: Direct Spark Ignition
• Turndown Ratio: 5:1
• Venting: Direct Vent, compatible with PVC, CPVC, PP, and SS up to 100 feet
• Installation Type: Floor Mount, Wall Mount
• Maximum Pressure: 30 psi
• System Capacity: 3.2 gallons
• Supply Pipe Connection Size: 1 and one quarter inches
• Return Pipe Connection Size: 1 and one quarter inches
• Height: 42 and three quarters inches
• Width: 17 inches
• Depth: 18 and five eighths inches
• Voltage: 120/24V
• Phase: Single Phase
• Material: Stainless Steel
• Pump/Auxiliary Outputs: 4
• Multiple Boiler Control: Up to 8 boilers with lead/lag rotation
• Connectivity: Modbus to BMS
• Energy Star Compliant: Yes
• CSA Certified: Yes
• CEC Compliant: For Sale in CA
• ANSI Standard: ANSI Z223.1