Secondary Combustion Burner 3.5" Promo The exterior diameter is 4

The exterior diameter is 4

Whether you need more space for keeping wood dry

Compatible with the Winnerwell Flatfold Backpack Wood Stove (sold separately)

Weight: ~2

The fine wire mesh prevents sparks and embers from exiting the chimney pipe

Secondary Combustion Burner 3.5" Promo The exterior diameter is 4Compatible with large size stainless steel Winnerwell stoves with 3. 5 diameter pipes, the Secondary Combustion Burner generates a cleaner and more efficient burn, resulting in more heat in your tent or shelter and a reduction in smoke and sparks expelled from through the flue. The top of the Secondary Combustion Burner also functions as an additional cooktop, expanding the cooking utility of your Winnerwell Stove.