Williams 9303 Extension
The Williams 9303 Extension is a professional-grade 24-inch vent extension kit engineered specifically for direct-vent gravity wall furnaces. This heavy-duty galvanized steel vent extension is the standard solution for HVAC installers dealing with deep wall penetrations where standard venting falls short. It is designed for use with wall thicknesses ranging from 15 inches to 24 inches, ensuring a secure and code-compliant flue path from the furnace to the exterior termination cap. Whether you are performing a new installation or retrofitting an existing unit, this OEM Williams furnace part maintains the structural integrity and airflow requirements necessary for high-efficiency operation.
Built for compatibility with the Williams 14038 and 30038 series, the 9303 kit includes the precision-fitted flue tube and air inlet extensions required to bridge the gap in thick-wall residential or light commercial applications. As a veteran technician knows, maintaining the correct sealed combustion environment is critical; this extension ensures that combustion air and flue gases remain entirely isolated from the living space. The 9-inch diameter assembly matches factory specifications to prevent backdrafting and ensure the 14,000 to 30,000 BTU/hr units operate at peak thermal performance without restricted exhaust flow.
Key Benefits- Extended Wall Compatibility: Specifically engineered to facilitate safe venting through exterior walls between 15 and 24 inches thick.
- Industrial Durability: Constructed from high-quality galvanized steel to resist corrosion and withstand high flue gas temperatures.
- OEM Precision: Guaranteed fit for Williams Direct-Vent Wall Furnaces, eliminating the need for field-fabricated non-compliant extensions.
- Sealed Combustion Integrity: Maintains the critical air-to-flue ratio required for gravity direct-vent systems.
- Complete Kit: Includes the necessary internal flue and external air tubes for a streamlined installation process.
Which furnace models work with the Williams 9303?
This 24-inch kit is compatible with 14,000 BTU and 30,000 BTU Direct-Vent Gravity Wall Furnaces, specifically the 14038 and 30038 series. For 22,000 BTU models (22038 series), use the 9302 extension.
Can I cut this extension if my wall is less than 15 inches?
For walls between 9 and 15 inches, the 9304 extension is the correct specification. While tubes can be trimmed according to the manual's "X" dimension calculations, starting with the kit closest to your wall thickness is recommended for the cleanest install.
Does this kit include the exterior vent cap?
No, the 9303 consists of the extension tubes only. You must use the vent cap provided with the original furnace or purchase a replacement cap separately if needed.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $203.32
-65%$203.32
$71.16Williams 9303 Extension
The Williams 9303 Extension is a professional-grade 24-inch vent extension kit engineered specifically for direct-vent gravity wall furnaces. This heavy-duty galvanized steel vent extension is the standard solution for HVAC installers dealing with deep wall penetrations where standard venting falls short. It is designed for use with wall thicknesses ranging from 15 inches to 24 inches, ensuring a secure and code-compliant flue path from the furnace to the exterior termination cap. Whether you are performing a new installation or retrofitting an existing unit, this OEM Williams furnace part maintains the structural integrity and airflow requirements necessary for high-efficiency operation.
Built for compatibility with the Williams 14038 and 30038 series, the 9303 kit includes the precision-fitted flue tube and air inlet extensions required to bridge the gap in thick-wall residential or light commercial applications. As a veteran technician knows, maintaining the correct sealed combustion environment is critical; this extension ensures that combustion air and flue gases remain entirely isolated from the living space. The 9-inch diameter assembly matches factory specifications to prevent backdrafting and ensure the 14,000 to 30,000 BTU/hr units operate at peak thermal performance without restricted exhaust flow.
Key Benefits- Extended Wall Compatibility: Specifically engineered to facilitate safe venting through exterior walls between 15 and 24 inches thick.
- Industrial Durability: Constructed from high-quality galvanized steel to resist corrosion and withstand high flue gas temperatures.
- OEM Precision: Guaranteed fit for Williams Direct-Vent Wall Furnaces, eliminating the need for field-fabricated non-compliant extensions.
- Sealed Combustion Integrity: Maintains the critical air-to-flue ratio required for gravity direct-vent systems.
- Complete Kit: Includes the necessary internal flue and external air tubes for a streamlined installation process.
Which furnace models work with the Williams 9303?
This 24-inch kit is compatible with 14,000 BTU and 30,000 BTU Direct-Vent Gravity Wall Furnaces, specifically the 14038 and 30038 series. For 22,000 BTU models (22038 series), use the 9302 extension.
Can I cut this extension if my wall is less than 15 inches?
For walls between 9 and 15 inches, the 9304 extension is the correct specification. While tubes can be trimmed according to the manual's "X" dimension calculations, starting with the kit closest to your wall thickness is recommended for the cleanest install.
Does this kit include the exterior vent cap?
No, the 9303 consists of the extension tubes only. You must use the vent cap provided with the original furnace or purchase a replacement cap separately if needed.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Williams 9303 Extension is a professional-grade 24-inch vent extension kit engineered specifically for direct-vent gravity wall furnaces. This heavy-duty galvanized steel vent extension is the standard solution for HVAC installers dealing with deep wall penetrations where standard venting falls short. It is designed for use with wall thicknesses ranging from 15 inches to 24 inches, ensuring a secure and code-compliant flue path from the furnace to the exterior termination cap. Whether you are performing a new installation or retrofitting an existing unit, this OEM Williams furnace part maintains the structural integrity and airflow requirements necessary for high-efficiency operation.
Built for compatibility with the Williams 14038 and 30038 series, the 9303 kit includes the precision-fitted flue tube and air inlet extensions required to bridge the gap in thick-wall residential or light commercial applications. As a veteran technician knows, maintaining the correct sealed combustion environment is critical; this extension ensures that combustion air and flue gases remain entirely isolated from the living space. The 9-inch diameter assembly matches factory specifications to prevent backdrafting and ensure the 14,000 to 30,000 BTU/hr units operate at peak thermal performance without restricted exhaust flow.
Key Benefits- Extended Wall Compatibility: Specifically engineered to facilitate safe venting through exterior walls between 15 and 24 inches thick.
- Industrial Durability: Constructed from high-quality galvanized steel to resist corrosion and withstand high flue gas temperatures.
- OEM Precision: Guaranteed fit for Williams Direct-Vent Wall Furnaces, eliminating the need for field-fabricated non-compliant extensions.
- Sealed Combustion Integrity: Maintains the critical air-to-flue ratio required for gravity direct-vent systems.
- Complete Kit: Includes the necessary internal flue and external air tubes for a streamlined installation process.
Which furnace models work with the Williams 9303?
This 24-inch kit is compatible with 14,000 BTU and 30,000 BTU Direct-Vent Gravity Wall Furnaces, specifically the 14038 and 30038 series. For 22,000 BTU models (22038 series), use the 9302 extension.
Can I cut this extension if my wall is less than 15 inches?
For walls between 9 and 15 inches, the 9304 extension is the correct specification. While tubes can be trimmed according to the manual's "X" dimension calculations, starting with the kit closest to your wall thickness is recommended for the cleanest install.
Does this kit include the exterior vent cap?
No, the 9303 consists of the extension tubes only. You must use the vent cap provided with the original furnace or purchase a replacement cap separately if needed.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
