Keep your pellet stove burning clean and efficiently with this OEM-style replacement shaker grate. Built from heavy-duty cast iron and sized to drop directly into compatible Hot Blast and Clayton pellet stove models, this grate restores proper ash sifting function without guesswork or modification.
Over time, cast iron shaker grates crack, warp, or wear through from constant heat cycling and mechanical agitation. A damaged grate means ash builds up on the burn pot, restricting airflow and reducing combustion efficiency -- which shows up as poor heat output, clinker buildup, and frustrated troubleshooting sessions.
The US Stove 40257 is the direct replacement grate for a specific group of Hot Blast and Clayton pellet stoves. At 14-3/4 inches long, 5-1/4 inches wide, and 1/2 inch thick, it matches the original factory dimensions precisely. At 3 lbs., it has the solid heft you expect from quality cast iron construction.
Resists the repeated thermal cycling and mechanical stress of daily pellet stove operation. Durable material handles high burn temperatures without warping.
Matches OEM dimensions exactly -- 14-3/4 in. x 5-1/4 in. x 1/2 in. -- for a no-modification install on listed Hot Blast and Clayton models.
The shaker grate design allows fine ash to fall through to the ash pan while keeping unburned pellets and clinkers in the burn zone, maintaining clean combustion.
Cross-referenced under NBK Parts number 20260. If your parts supplier or stove manual lists this number, this is the same grate.
The shaker grate sits at the base of the burn pot assembly. As you work the shaker handle, the grate moves back and forth to dislodge clinkers and sift ash downward into the collection pan. If the grate is cracked, worn smooth, or broken, this action fails -- ash accumulates on the grate surface, smothers the burn, and can cause the stove to fault or shut down on safety controls.
Replacing the grate is one of the most straightforward maintenance tasks on these stoves and typically requires no special tools -- just access to the firebox and removal of the existing grate assembly.
This grate is confirmed to fit the following United States Stove and Clayton pellet stove models:
If your model number is not on this list, verify dimensions against your existing grate before ordering. This grate is not a universal fit.
Replacing the shaker grate on Hot Blast pellet stoves is a user-serviceable task in most cases. General steps: