Dometic 36278 Atwood Furnace Bottom-Discharge Adapter Plate

Dometic/Atwood 36278 is a bottom-discharge furnace adapter plate for specified Atwood Hydro Flame 85-series and two-stage furnace installations. The Atwood installation-parts manual identifies this exact part as an adapter plate with foam seals on both sides. It is not an exterior exhaust vent adapter.

Part details

• Exact manufacturer part number: 36278
• Supplier SKU: 79-8468
• Component: Bottom-discharge adapter plate for furnace warm-air distribution
• Sealing: Foam seals on both sides, per Atwood manufacturer documentation
• Material: Steel, as catalogued by the supplier; not independently established from the Atwood service manual
• Quantity: One adapter assembly
• Condition: New

Furnace references and fitment

Atwood lists part 36278 with the Series 85 and two-stage furnace installation parts. The original supplier listing specifically referenced two-stage models 1522 and 2334, and 8520-IV LD and 8531-IV. These individual model applications are retained as supplier references; the complete furnace model, production version and floor-discharge arrangement still need confirmation.

Atwood also lists other bottom-discharge components, including 36277 (a different plate using a separate gasket), 37745 and 37868. They should not be treated as interchangeable solely because they all concern bottom discharge. Match the original plate and sealing arrangement and follow the furnace manufacturer's floor-plenum and airflow instructions. Incorrect duct or exhaust configurations can create a safety hazard.