When your pellet stove starts producing incomplete burns, excessive ash buildup, or uneven flame patterns, a worn burnpot is usually the culprit. This direct replacement burnpot -- sold under part numbers 86624 (US Stove) and 20333 (NBK Parts) -- restores proper combustion to your 5500 series stove without modification. It fits a broad range of US Stove, Golden Eagle, and King branded units built on the same platform.
The burnpot is the heart of any pellet stove combustion system. Pellets drop into the burnpot from the auger, ignite, and burn through precisely sized air holes that allow the combustion blower to feed the fire. Over time -- typically after one to three heating seasons of regular use -- the air holes oxidize, warp, or clog with clinker deposits, reducing airflow and forcing the stove to work harder to maintain temperature setpoints.
Replacing the burnpot is one of the most common and cost-effective maintenance tasks for 5500 series stove owners. This unit is machined to OEM dimensions so it drops into the existing firebox tray without drilling, grinding, or adapter plates.
Engineered to the same dimensions as the original factory burnpot. No modification needed for listed US Stove, Golden Eagle, and King models.
Clean, properly sized air holes allow the combustion blower to deliver consistent airflow, producing complete pellet burns and reducing ash and clinker accumulation.
Listed as 86624 by United States Stove and 20333 by NBK Parts -- both numbers reference the same component, making cross-referencing straightforward.
Backed by a limited 1-year manufacturer warranty against defects in materials and workmanship.
This burnpot is a verified direct replacement for the following stove models:
Common signs that your burnpot is due for replacement include:
Burnpot replacement on 5500 series stoves is a straightforward DIY task requiring basic hand tools: