Product Description
The Weil-McLain 672619209022 is a high-efficiency condensing gas boiler from the Ultra Series 4 lineup, designed for residential heating applications. This floor-mount unit delivers 299 MBH input and 270,000 BTU per hour of rated heat output, making it a strong choice for larger homes or demanding heating loads. With a 92.5% AFUE rating, this modulating condensing boiler extracts maximum heat from every unit of fuel, helping reduce operating costs over the life of the system. The unit runs on natural gas or propane and uses a spark ignition system for reliable startup. The cast aluminum nano-coated heat exchanger is built to resist corrosion and scale, extending service life in both hard and soft water conditions. A high-grade stainless steel burner operates quietly, reducing noise in occupied spaces. The 5 to 1 turn-down ratio allows the boiler to modulate output to match real-time heating demand, avoiding the efficiency losses associated with short cycling. The U-Control system simplifies setup, commissioning, and ongoing maintenance for HVAC technicians. Temperature management supports up to 3 different set points, and the control panel can manage multiple boilers from a single interface. Outdoor reset capability adjusts supply water temperature based on outdoor conditions, improving system efficiency in variable climates. Domestic hot water priority ensures consistent hot water delivery when needed. Direct vent design allows venting with PVC, CPVC, or polypropylene pipe, giving installers flexible options for vent routing. The unit is ASME certified, CSA certified, Energy Star compliant, and approved for sale in California under CEC standards. Supply and return pipe connections are 1.25 inches. The boiler ships with circulators included. Dimensions are 22.8125 inches wide, 22.125 inches deep, and 47.75 inches tall. Operating voltage is 120V single phase. This boiler is suited for hydronic heating systems requiring up to 3 zones of control.
- Cast aluminum nano-coated heat exchanger resists corrosion and extends service life
- 5 to 1 turn-down ratio modulates output to match load and reduce short cycling
- Supports up to 3 heating zones with outdoor reset and domestic hot water priority
Product Highlights
The Weil-McLain Ultra Series 4 condensing gas boiler delivers 92.5% AFUE efficiency with a modulating burner, flexible PVC or CPVC venting, and a built-in control system that manages up to 3 zones and multiple boilers from a single panel. It is ASME and CSA certified and Energy Star compliant.
Product Information
Standard Information
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Brand: WEIL-MCLAIN
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Manufacturer Part Number: 672619209022
Technical Specifications
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AFUE: 92.5%
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Input Capacity: 299 MBH
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BTU Heat Rating: 270,000 BTU per hour
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Fuel Type: Natural Gas, Propane
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Ignition System: Spark Ignition
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Condensing: Yes
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Vent Type: Direct Vent
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Installation Type: Floor Mount
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Application: Residential
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Material: Cast Aluminum
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Zones: 3
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Supply Pipe Connection Size: 1.25 inches
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Return Pipe Connection Size: 1.25 inches
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Voltage: 120V
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Phase: Single Phase
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Width: 22.8125 inches
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Depth: 22.125 inches
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Height: 47.75 inches
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ASME Certified: Yes
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CSA Certified: Yes
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Energy Star Compliant: Yes
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CEC Compliant: For Sale in CA
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Collection: Ultra Series 4
