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METAL FAB

Metal Fab is a manufacturer of venting products for gas-fired heating appliances, with a product line that includes concentric vent terminations, vent pipe kits, and related components for water heaters and boilers. The company's venting products are commonly specified for residential and light commercial installations where combustion gases must be safely exhausted and combustion air supplied. Metal Fab vent components are available in configurations that combine intake and exhaust into a single penetration, reducing the number of roof or wall openings required. These concentric designs are typically used with high-efficiency, condensing appliances that require both a flue and an air intake. The product range includes vertical terminations, horizontal terminations, and elbows in various angles, allowing routing flexibility for different installation geometries. Connection sizes commonly include 3-inch and 5-inch diameters, and many models are rated for appliance input up to 199,000 BTU/hr. Overall lengths vary from short terminations to longer pipe sections, supporting through-roof or through-wall venting. Materials and construction are selected to withstand flue gas temperatures and condensate exposure typical of condensing equipment. 3G Electric supplies Metal Fab vent pipe kits and concentric vent terminations as part of its industrial equipment catalog. The available SKUs cover vertical and horizontal mounting orientations, 45-degree and 90-degree elbows, and multiple overall lengths. Each product is identified by a manufacturer part number and includes specifications such as connection size, BTU range, and mounting orientation. This allows plant engineers, maintenance managers, and procurement specialists to match vent components to specific water heater or boiler models. 3G Electric provides global logistics support for these products, with the ability to ship to international destinations. The catalog includes detailed product data to assist with specification and selection. For technical buyers, Metal Fab venting products offer a defined set of configurations that address common venting requirements for gas-fired water heaters and boilers. The concentric design simplifies installation by using a single penetration for both intake and exhaust, which can be advantageous in space-constrained or retrofit applications. The availability of various angles and lengths supports custom routing without the need for field fabrication. 3G Electric maintains inventory of these SKUs and can provide quotes based on project requirements. The product information includes MPNs, connection sizes, BTU ratings, and dimensions, enabling accurate cross-referencing with appliance specifications. This supports efficient procurement and reduces the risk of mismatched components. Overall, Metal Fab venting products are a practical choice for venting high-efficiency gas appliances, and 3G Electric offers a range of these components with the documentation and logistics support needed for global procurement.

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About METAL FAB

Metal Fab is a manufacturer of venting products for gas-fired heating appliances, with a product line that includes concentric vent terminations, vent pipe kits, and related components for water heaters and boilers. The company's venting products are commonly specified for residential and light commercial installations where combustion gases must be safely exhausted and combustion air supplied. Metal Fab vent components are available in configurations that combine intake and exhaust into a single penetration, reducing the number of roof or wall openings required. These concentric designs are typically used with high-efficiency, condensing appliances that require both a flue and an air intake. The product range includes vertical terminations, horizontal terminations, and elbows in various angles, allowing routing flexibility for different installation geometries. Connection sizes commonly include 3-inch and 5-inch diameters, and many models are rated for appliance input up to 199,000 BTU/hr. Overall lengths vary from short terminations to longer pipe sections, supporting through-roof or through-wall venting. Materials and construction are selected to withstand flue gas temperatures and condensate exposure typical of condensing equipment. 3G Electric supplies Metal Fab vent pipe kits and concentric vent terminations as part of its industrial equipment catalog. The available SKUs cover vertical and horizontal mounting orientations, 45-degree and 90-degree elbows, and multiple overall lengths. Each product is identified by a manufacturer part number and includes specifications such as connection size, BTU range, and mounting orientation. This allows plant engineers, maintenance managers, and procurement specialists to match vent components to specific water heater or boiler models. 3G Electric provides global logistics support for these products, with the ability to ship to international destinations. The catalog includes detailed product data to assist with specification and selection. For technical buyers, Metal Fab venting products offer a defined set of configurations that address common venting requirements for gas-fired water heaters and boilers. The concentric design simplifies installation by using a single penetration for both intake and exhaust, which can be advantageous in space-constrained or retrofit applications. The availability of various angles and lengths supports custom routing without the need for field fabrication. 3G Electric maintains inventory of these SKUs and can provide quotes based on project requirements. The product information includes MPNs, connection sizes, BTU ratings, and dimensions, enabling accurate cross-referencing with appliance specifications. This supports efficient procurement and reduces the risk of mismatched components. Overall, Metal Fab venting products are a practical choice for venting high-efficiency gas appliances, and 3G Electric offers a range of these components with the documentation and logistics support needed for global procurement.

Common Applications

  • Residential water heater replacement — Metal Fab RTG20151GR vertical concentric vent termination for through-roof venting of high-efficiency units up to 199K BTU.
  • Light commercial boiler installation — Metal Fab RTG20151GC 24-inch vertical concentric vent termination for condensing boilers requiring combined intake and exhaust.
  • Retrofit of sidewall-vented water heater — Metal Fab RTG20151GB 45-degree elbow for horizontal routing around structural obstructions.
  • Tight mechanical room — Metal Fab RTG20151GW 6-inch vertical termination for minimal clearance installations with high-efficiency water heaters.
  • Multi-unit residential building — Metal Fab RTG20251GD 36-inch vertical vent pipe for extending flue runs from central water heating equipment.
  • Industrial process water heating — Metal Fab concentric vent terminations for gas-fired water heaters in manufacturing facilities, with 3-inch and 5-inch connections.

Guides & Resources

Frequently asked questions

Common questions about METAL FAB from 3G Electric.

What is the BTU range for Metal Fab concentric vent terminations?

Most Metal Fab concentric vent terminations listed in the 3G Electric catalog are rated for appliance input up to 199,000 BTU/hr. This rating applies to models such as the RTG20151GR, RTG20151GC, RTG20151GW, and RTG20151GB. The BTU rating indicates the maximum heat input of the connected appliance. It is important to verify that the vent termination's rating meets or exceeds the appliance's input. For appliances with higher input, consult the manufacturer's literature for appropriate venting components. The 199K BTU rating covers many residential and light commercial water heaters and boilers.

What is the difference between a vertical and horizontal Metal Fab vent termination?

Vertical Metal Fab vent terminations are designed for through-roof installation, where the termination exits the building vertically. Horizontal terminations are designed for through-wall installation, exiting the building sidewall. The mounting orientation affects the termination's geometry and the required clearances from windows, doors, and other building openings. For example, the RTG20151GR is a vertical termination, while the RTG20151GB is a 45-degree elbow that can be used in horizontal or vertical orientations. Selecting the correct orientation depends on the appliance location, building layout, and local code requirements for vent termination clearances.

What connection sizes are available for Metal Fab vent pipe kits?

Metal Fab vent pipe kits and concentric vent terminations in the 3G Electric catalog commonly feature a 3-inch vent connection and a 5-inch air intake connection. This concentric configuration uses a smaller inner pipe for exhaust and a larger outer pipe for combustion air intake. The 3-inch and 5-inch sizes are standard for many high-efficiency water heaters and boilers up to 199,000 BTU/hr. Some models may have different connection sizes; always refer to the specific product specifications. The connection size must match the appliance's flue outlet and air intake collar.

Can Metal Fab vent pipe kits be used with condensing water heaters?

Metal Fab vent pipe kits and concentric vent terminations are suitable for use with condensing water heaters and boilers, provided the venting system is approved for the appliance. Condensing appliances produce acidic condensate, so the vent material must be corrosion-resistant. Metal Fab vent components are typically constructed from materials that withstand condensate exposure. However, always verify that the specific vent product is listed for use with the condensing appliance model. The appliance manufacturer's installation instructions will specify acceptable vent materials and configurations. Using non-approved venting can void warranties and create safety hazards.

What is the overall length of Metal Fab concentric vent terminations?

Metal Fab concentric vent terminations are available in various overall lengths to accommodate different wall or roof thicknesses and installation requirements. For example, the RTG20151GR has an overall length of 12 inches, the RTG20151GC is 24 inches, and the RTG20151GW is 6 inches. The RTG20251GD vent pipe is 36 inches long. The required length depends on the distance from the appliance flue outlet to the exterior termination point, plus any additional length needed for proper clearances. Longer lengths may require additional support. Always follow the appliance manufacturer's venting instructions for maximum equivalent length and elbow allowances.

How do I select the right Metal Fab vent elbow for my installation?

Metal Fab vent elbows are available in 45-degree and 90-degree configurations to facilitate routing around obstructions. The 45-degree elbow (e.g., RTG20151GB) allows for a gradual change in direction, while the 90-degree elbow (e.g., RTG20151GB) provides a sharper turn. When selecting an elbow, consider the available space, the required vent routing, and the appliance manufacturer's allowances for elbows in the vent system. Each elbow adds equivalent length to the vent run, which must not exceed the maximum specified by the appliance manufacturer. Also ensure the elbow's connection size matches the vent pipe and termination.