Product Description
The Weil-McLain 672619209008 is a high-efficiency condensing gas hot water boiler from the Ultra Series 4 collection. It delivers 230 MBH input and 207 MBH output with a 94.1% AFUE rating, making it one of the most efficient floor-mount residential boilers available. This unit is designed for HVAC professionals who need reliable, high-performance heating in residential applications. The cast aluminum nano-coated heat exchanger resists corrosion and transfers heat efficiently, extending the service life of the unit. The modulating condensing design features a 5:1 turn-down ratio, which allows the boiler to match output to actual heating demand. This reduces short-cycling, lowers fuel consumption, and improves system comfort. The high-grade stainless steel burner runs quietly and produces low NOx emissions, meeting strict environmental standards including compliance for sale in California. The U-Control system simplifies setup, commissioning, and ongoing maintenance. It supports temperature management across up to 3 different set points and allows multiple boilers to be controlled from a single panel, making it practical for larger or zoned systems. Outdoor reset and domestic hot water priority functions are built in, giving installers flexibility to optimize system performance. The boiler accepts venting through PVC, CPVC, or polypropylene pipe, which reduces material costs and simplifies installation. It runs on natural gas or propane at 120V single phase. The unit is floor-mounted and ships with boiler circulators included. ASME certified and Energy Star compliant. A new slate gray jacket cover was introduced in summer 2021, giving the unit a clean, modern appearance. This boiler is the right choice for HVAC contractors and plumbers working on residential hydronic heating systems who need a dependable, high-efficiency condensing boiler with advanced controls and durable construction.
- Cast aluminum nano-coated heat exchanger for corrosion resistance and long service life
- Modulating operation with 5:1 turn-down ratio reduces fuel use and short-cycling
- U-Control system supports up to 3 zone set points and multi-boiler management from one panel
Product Highlights
The Weil-McLain 672619209008 Ultra Series 4 delivers 94.1% AFUE condensing efficiency with a 230 MBH input rating, advanced modulating controls, and flexible PVC or polypropylene venting in a floor-mount residential package. It is Energy Star compliant and CEC approved for sale in California.
Product Information
Standard Information
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Brand: WEIL-MCLAIN
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Manufacturer Part Number: 672619209008
Technical Specifications
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Collection: Ultra Series 4
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Boiler Type: Gas Boiler
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Application: Residential
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Input Rating: 230 MBH
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BTU Heat Rating: 207000 BTU per hour
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AFUE: 94.1%
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Fuel Type: Natural Gas, Propane
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Media: Hot Water
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Condensing: Yes
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Heat Exchanger Material: Cast Aluminum, Nano-Coated
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Ignition System: Spark Ignition
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Vent Type: Direct Vent
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Venting Materials: PVC, CPVC, Polypropylene
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Installation Type: Floor Mount
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Voltage: 120V
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Phase: Single Phase
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Zones: 3
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Supply Pipe Connection Size: 1 inch
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Return Pipe Connection Size: 1 inch
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Height: 43 and 1/16 inches
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Width: 22 and 13/16 inches
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Depth: 19 and 15/16 inches
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Emission: Low NOx
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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 California
