The use of fully premixed combustion in small gas boilers can improve denitrification efficiency. On the basis of fully premixed combustion. adding flame stabilizers inside the boiler can further reduce production of oxides of nitrogen. Four types of flame-stabilizing baffles were added at a certain position inside the furnace after the fully premixed burner. https://www.nacrack.com/deal-alert-Dea-Eyewear-Jemma-deal-zone/