
Nordyne 903664 Flue
The Nordyne 903664 Flue assembly is a heavy-duty, telescopic roof jack designed for high-performance venting in mobile home gas furnaces. Built to handle the rigorous demands of 80% AFUE units, this concentric vent system utilizes a dual-pipe design to simultaneously provide combustion air intake and exhaust discharge. This eliminates the risk of backdrafting and ensures the burner receives clean, unconditioned air for maximum thermal efficiency. With an adjustable length of 35"-63", it provides the necessary vertical clearance to meet local mechanical codes while accommodating variable ceiling-to-roof heights. The fixed 2.5/12 pitch (often referred to as 2/12) slant deck flashing is engineered for weather-tight integration on sloped manufactured home roofs. As a genuine OEM Nordyne part, it guarantees dimensional accuracy and structural integrity, preventing common pressure switch trip-outs and venting obstructions that lead to furnace lockouts. For contractors, the telescopic adjustment and pre-pitched flange simplify the installation process, ensuring a secure seal in one pass.
Key Benefits- Adjustable Telescopic Reach: The 35"-63" range allows for precise fitting without field cutting, reducing installation labor for service technicians.
- Concentric Vent Design: Separate intake and exhaust paths maintain combustion stability and protect the heat exchanger from operational stress.
- Optimized Roof Pitch: Specifically designed for a 2.5/12 pitch roof, providing a factory-grade seal that prevents roof jack leaks.
- Furnace Compatibility: Engineered specifically for Nordyne, Miller, and Intertherm M1 and M5 series furnaces.
- Durable Construction: Heavy-gauge galvanized or aluminized steel resists corrosion and thermal fatigue in harsh attic environments.
Is this roof jack compatible with any mobile home furnace?
No, the 903664 is specifically designed for 80% efficient Nordyne gas furnaces. Check your furnace's venting classification before installation.
What does the 2.5/12 pitch rating mean for my installation?
This refers to the fixed angle of the roof flange. It is designed for roofs that rise 2.5 inches for every 12 inches of horizontal run, ensuring the vent pipe remains perfectly vertical.
How do I measure for the correct flue length?
Measure from the top of the furnace flue collar to the underside of the roof deck. Choose a kit where your measurement falls in the middle of the 35" to 63" range to allow for proper overlapping and adjustment.
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.
Nordyne 903664 Flue
The Nordyne 903664 Flue assembly is a heavy-duty, telescopic roof jack designed for high-performance venting in mobile home gas furnaces. Built to handle the rigorous demands of 80% AFUE units, this concentric vent system utilizes a dual-pipe design to simultaneously provide combustion air intake and exhaust discharge. This eliminates the risk of backdrafting and ensures the burner receives clean, unconditioned air for maximum thermal efficiency. With an adjustable length of 35"-63", it provides the necessary vertical clearance to meet local mechanical codes while accommodating variable ceiling-to-roof heights. The fixed 2.5/12 pitch (often referred to as 2/12) slant deck flashing is engineered for weather-tight integration on sloped manufactured home roofs. As a genuine OEM Nordyne part, it guarantees dimensional accuracy and structural integrity, preventing common pressure switch trip-outs and venting obstructions that lead to furnace lockouts. For contractors, the telescopic adjustment and pre-pitched flange simplify the installation process, ensuring a secure seal in one pass.
Key Benefits- Adjustable Telescopic Reach: The 35"-63" range allows for precise fitting without field cutting, reducing installation labor for service technicians.
- Concentric Vent Design: Separate intake and exhaust paths maintain combustion stability and protect the heat exchanger from operational stress.
- Optimized Roof Pitch: Specifically designed for a 2.5/12 pitch roof, providing a factory-grade seal that prevents roof jack leaks.
- Furnace Compatibility: Engineered specifically for Nordyne, Miller, and Intertherm M1 and M5 series furnaces.
- Durable Construction: Heavy-gauge galvanized or aluminized steel resists corrosion and thermal fatigue in harsh attic environments.
Is this roof jack compatible with any mobile home furnace?
No, the 903664 is specifically designed for 80% efficient Nordyne gas furnaces. Check your furnace's venting classification before installation.
What does the 2.5/12 pitch rating mean for my installation?
This refers to the fixed angle of the roof flange. It is designed for roofs that rise 2.5 inches for every 12 inches of horizontal run, ensuring the vent pipe remains perfectly vertical.
How do I measure for the correct flue length?
Measure from the top of the furnace flue collar to the underside of the roof deck. Choose a kit where your measurement falls in the middle of the 35" to 63" range to allow for proper overlapping and adjustment.
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.
Product Information
Product Information
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Description
The Nordyne 903664 Flue assembly is a heavy-duty, telescopic roof jack designed for high-performance venting in mobile home gas furnaces. Built to handle the rigorous demands of 80% AFUE units, this concentric vent system utilizes a dual-pipe design to simultaneously provide combustion air intake and exhaust discharge. This eliminates the risk of backdrafting and ensures the burner receives clean, unconditioned air for maximum thermal efficiency. With an adjustable length of 35"-63", it provides the necessary vertical clearance to meet local mechanical codes while accommodating variable ceiling-to-roof heights. The fixed 2.5/12 pitch (often referred to as 2/12) slant deck flashing is engineered for weather-tight integration on sloped manufactured home roofs. As a genuine OEM Nordyne part, it guarantees dimensional accuracy and structural integrity, preventing common pressure switch trip-outs and venting obstructions that lead to furnace lockouts. For contractors, the telescopic adjustment and pre-pitched flange simplify the installation process, ensuring a secure seal in one pass.
Key Benefits- Adjustable Telescopic Reach: The 35"-63" range allows for precise fitting without field cutting, reducing installation labor for service technicians.
- Concentric Vent Design: Separate intake and exhaust paths maintain combustion stability and protect the heat exchanger from operational stress.
- Optimized Roof Pitch: Specifically designed for a 2.5/12 pitch roof, providing a factory-grade seal that prevents roof jack leaks.
- Furnace Compatibility: Engineered specifically for Nordyne, Miller, and Intertherm M1 and M5 series furnaces.
- Durable Construction: Heavy-gauge galvanized or aluminized steel resists corrosion and thermal fatigue in harsh attic environments.
Is this roof jack compatible with any mobile home furnace?
No, the 903664 is specifically designed for 80% efficient Nordyne gas furnaces. Check your furnace's venting classification before installation.
What does the 2.5/12 pitch rating mean for my installation?
This refers to the fixed angle of the roof flange. It is designed for roofs that rise 2.5 inches for every 12 inches of horizontal run, ensuring the vent pipe remains perfectly vertical.
How do I measure for the correct flue length?
Measure from the top of the furnace flue collar to the underside of the roof deck. Choose a kit where your measurement falls in the middle of the 35" to 63" range to allow for proper overlapping and adjustment.
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.












