904106 High Efficiency Furnace Vent Conversion Kit
904106 High Efficiency Furnace Vent Conversion Kit
Product Overview
The 904106 High Efficiency Furnace Vent Conversion Kit transforms an existing 8″ masonry chimney into a sealed, dual-PVC venting system for modern condensing furnaces. The kit includes a precision-cut galvanized steel cover plate with integrated PVC adapters, high-temperature gasket, stainless-steel clamps, and a complete hardware pack. Designed for straightforward retrofit installations, it ensures compliant, leak-free vent terminations and accommodates two 2″ PVC pipes for intake and exhaust.
Technical Specifications
| Specification | Detail |
|---|---|
| Kit Components | 8.5″ galvanized steel cover plate, two 2″ PVC adapters, high-temp silicone gasket, (4) stainless clamps, mounting screws, installation guide |
| Chimney Opening Coverage | 8″ inner diameter |
| Cover Plate Diameter | 8.5″ |
| PVC Adapter Diameter | 2″ slip-in (fits schedule 40 PVC) |
| Material | 22 gauge galvanized steel; silicone gasket |
| Operating Temperature | –20 °F to 250 °F |
| Pressure Rating | Compatible with up to 5″ WC positive/negative vent pressure |
| Net Weight | 3 lb |
| Shipping Dimensions | 12″ × 10″ × 2″ |
Cross-Reference Part Numbers
| OEM Part Number | Description |
|---|---|
| 904106 | High Efficiency Vent Conversion Kit (this kit) |
No documented superseded or alternate part numbers.
Compatibility
This kit is engineered for high-efficiency condensing furnaces that require separate 2″ PVC intake and exhaust lines. Compatible brands and platforms include:
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Nordyne / Intertherm condensing models
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Coleman high-efficiency gas furnaces
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Goodman, Daikin, and Amana condensing units
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Rheem, Ruud, Trane, and Lennox condensing furnaces
Always verify your appliance’s venting requirements in the installation instructions before ordering.
Technician Notes
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Remove the existing chimney cap or liner and clean out soot/debris.
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Dry-fit the 8.5″ plate over the 8″ opening; ensure it sits flush and level.
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Apply the supplied silicone gasket to the back of the cover plate.
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Insert both 2″ PVC adapters into the plate’s sleeves and secure with stainless-steel clamps.
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Position the assembled plate into the chimney opening and fasten with the provided screws.
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Run the condensate furnace’s intake and exhaust PVC through each adapter, maintaining manufacturer-specified pitch.
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Seal all joints with PVC solvent weld and check for airtightness using a low-pressure air test (≤ 5″ WC).
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Complete the installation per local codes, adding snow-guards or rain caps as
Kit converts regular chimney to accept two 2" PVC pipes for high-efficiency furnaces. Plate measures 8.5" diameter to cover 8" chimneys. Install per included instructions. Kit includes 2 PVC elbows but does not include 2" PVC pipe that is shown for illustration purposes.