30001152 Catalyst Combustor Brand new Combustor, will fit the following models: Large Winterwarm 2100, Defiant 1910, 1945, Defiant Encore 0028, 2140, 2190, Encore 2550 Fits Large Winterwarm 2100 Defiant 1910,1945 Defiant Encore 0028, 2140, 2190 Encore 2550