Lennox 73M72 Extension Kit
The Lennox 73M72 is a critical Vertical Vent Extension Kit specifically engineered to modify the venting system on compatible high-efficiency furnaces and SG 150 units. When standard flue runs aren't enough to clear building obstructions or meet local code for roof terminations, this OEM replacement part provides the necessary height for proper exhaust gas routing. For a tech in the field, this kit is essential for maintaining the correct 1/4-inch per foot slope and ensuring the vent termination clears snow lines or parapet walls without compromising the system's combustion air flow or pressure switch performance.
This comprehensive kit includes a vent transition, drain cap, heavy-duty brackets, vent straps, and a full hardware set featuring 16 x 5/8" SDST screws and essential gaskets. Designed as a direct successor to the LB-100525E and 27M58, the 73M72 ensures a secure, leak-proof seal that prevents condensate from backing up into the inducer motor assembly. Whether you are performing a new install or retrofitting a Lennox HVAC system, using genuine Lennox parts ensures the equipment operates within its certified static pressure range, preventing nuisance trips and long-term corrosive damage to the heat exchanger.
Key Benefits:
- Extends vertical venting for furnaces where standard flue lengths fail to meet clearance requirements.
- Optimizes exhaust flow to support proper draft, critical for high-efficiency condensing gas furnaces.
- Complete installation package includes all required brackets, straps, and fasteners to save time on the job site.
- Versatile compatibility with Lennox, Allied, Armstrong, and Ducane units, replacing older part numbers like LB-100525A.
- Rugged OEM construction maintains a professional, gasketed seal to handle fluctuating flue temperatures and moisture.
Common Questions:
- When is the 73M72 kit required? It is necessary when the vertical vent run must be extended to meet roof clearance or when the original configuration lacks the height for proper vent termination.
- Does this kit include the drain cap and gasket? Yes, the 73M72 is a complete vent kit that includes the transition, drain cap, and the necessary gaskets for a watertight seal.
- Is this compatible with direct vent systems? This kit is specifically designed for vertical venting configurations in Lennox-branded heating units; always verify your specific model's vent length limits in the installation manual.
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.
Lennox 73M72 Extension Kit
The Lennox 73M72 is a critical Vertical Vent Extension Kit specifically engineered to modify the venting system on compatible high-efficiency furnaces and SG 150 units. When standard flue runs aren't enough to clear building obstructions or meet local code for roof terminations, this OEM replacement part provides the necessary height for proper exhaust gas routing. For a tech in the field, this kit is essential for maintaining the correct 1/4-inch per foot slope and ensuring the vent termination clears snow lines or parapet walls without compromising the system's combustion air flow or pressure switch performance.
This comprehensive kit includes a vent transition, drain cap, heavy-duty brackets, vent straps, and a full hardware set featuring 16 x 5/8" SDST screws and essential gaskets. Designed as a direct successor to the LB-100525E and 27M58, the 73M72 ensures a secure, leak-proof seal that prevents condensate from backing up into the inducer motor assembly. Whether you are performing a new install or retrofitting a Lennox HVAC system, using genuine Lennox parts ensures the equipment operates within its certified static pressure range, preventing nuisance trips and long-term corrosive damage to the heat exchanger.
Key Benefits:
- Extends vertical venting for furnaces where standard flue lengths fail to meet clearance requirements.
- Optimizes exhaust flow to support proper draft, critical for high-efficiency condensing gas furnaces.
- Complete installation package includes all required brackets, straps, and fasteners to save time on the job site.
- Versatile compatibility with Lennox, Allied, Armstrong, and Ducane units, replacing older part numbers like LB-100525A.
- Rugged OEM construction maintains a professional, gasketed seal to handle fluctuating flue temperatures and moisture.
Common Questions:
- When is the 73M72 kit required? It is necessary when the vertical vent run must be extended to meet roof clearance or when the original configuration lacks the height for proper vent termination.
- Does this kit include the drain cap and gasket? Yes, the 73M72 is a complete vent kit that includes the transition, drain cap, and the necessary gaskets for a watertight seal.
- Is this compatible with direct vent systems? This kit is specifically designed for vertical venting configurations in Lennox-branded heating units; always verify your specific model's vent length limits in the installation manual.
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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Product Information
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Description
The Lennox 73M72 is a critical Vertical Vent Extension Kit specifically engineered to modify the venting system on compatible high-efficiency furnaces and SG 150 units. When standard flue runs aren't enough to clear building obstructions or meet local code for roof terminations, this OEM replacement part provides the necessary height for proper exhaust gas routing. For a tech in the field, this kit is essential for maintaining the correct 1/4-inch per foot slope and ensuring the vent termination clears snow lines or parapet walls without compromising the system's combustion air flow or pressure switch performance.
This comprehensive kit includes a vent transition, drain cap, heavy-duty brackets, vent straps, and a full hardware set featuring 16 x 5/8" SDST screws and essential gaskets. Designed as a direct successor to the LB-100525E and 27M58, the 73M72 ensures a secure, leak-proof seal that prevents condensate from backing up into the inducer motor assembly. Whether you are performing a new install or retrofitting a Lennox HVAC system, using genuine Lennox parts ensures the equipment operates within its certified static pressure range, preventing nuisance trips and long-term corrosive damage to the heat exchanger.
Key Benefits:
- Extends vertical venting for furnaces where standard flue lengths fail to meet clearance requirements.
- Optimizes exhaust flow to support proper draft, critical for high-efficiency condensing gas furnaces.
- Complete installation package includes all required brackets, straps, and fasteners to save time on the job site.
- Versatile compatibility with Lennox, Allied, Armstrong, and Ducane units, replacing older part numbers like LB-100525A.
- Rugged OEM construction maintains a professional, gasketed seal to handle fluctuating flue temperatures and moisture.
Common Questions:
- When is the 73M72 kit required? It is necessary when the vertical vent run must be extended to meet roof clearance or when the original configuration lacks the height for proper vent termination.
- Does this kit include the drain cap and gasket? Yes, the 73M72 is a complete vent kit that includes the transition, drain cap, and the necessary gaskets for a watertight seal.
- Is this compatible with direct vent systems? This kit is specifically designed for vertical venting configurations in Lennox-branded heating units; always verify your specific model's vent length limits in the installation manual.
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.
