Product Description
The Metal-Fab 4MIN5 is a flue increaser designed for type B gas vent applications. This product features a double wall construction with an outer casing of G90 galvanized steel and an inner flue made of aluminum alloy. The increaser allows for a smooth transition from a four inch diameter to a five inch diameter, which is essential for gas boiler, fireplace, furnace, and unit heater installations.
- Size: 4 x 5 inches
- Material: G90 Galvanized Steel and Aluminum Alloy
- Length: 2.68 inches
Product Highlights
This increaser meets industry standards and provides reliable performance for various heating applications.
Product Information
Standard Information
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Manufacturer: Metal-Fab
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Applicable Standard: UL 441, NFPA 54/211
Technical Specifications
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Larger End Size: 5 Inch Diameter
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Smaller End Size: 4 Inch Diameter
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Material Thickness: 0.012 Inch (Inner Wall), 0.018 Inch (Outer Wall)
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Application: Gas Boiler, Fireplace, Furnace, Unit Heater, Radiant Tube Heater
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Type: Double Wall, Round, No-Height
