S1-7900A6111 80% Furnace Accessory Roof Jack and Accessories 11" Interior Extension

Description

• 11" Interior roof jack extension

Product Specifications

OEM Roof Jack Accessory | 11‑Inch Interior Extension | For 80% Mobile Home Furnaces

The 7900A6111 is an OEM interior extension section designed for use with Coleman / York 80% furnace roof jack systems. This 11‑inch extension increases the interior length of the roof jack assembly, ensuring proper vent alignment, safe exhaust clearance, and correct installation height for manufactured and mobile home applications.

Key Features

• OEM Coleman / York roof jack accessory

• 11" interior extension for 80% furnaces

• Ensures proper vent height and alignment

• Heavy‑gauge galvanized construction

• Designed for mobile and manufactured home installations

• Direct‑fit component for compatible roof jack assemblies

Function & Application

This interior extension is used to adjust the total length of the roof jack assembly inside the home. Proper roof jack height is critical for:

• Safe venting of combustion gases

• Maintaining correct draft

• Preventing condensation and backdraft issues

• Meeting installation code requirements

The 7900A6111 is commonly used when replacing or installing 80% furnaces where ceiling height or roof pitch requires additional interior length.

Product Details

• Part Number: 7900A6111

• Component Type: Interior roof jack extension

• Length: 11 inches

• Application: 80% mobile home furnaces

• OEM Brand: Coleman / York