... .Low emission(NOx,CO) 5.Infrared heat in gas for bbq ----Now Haodong Technology is the first and only manufacture in ... plate.Now we mainly manufacture two series bbq grill burners: bbq series and industrial series:1. BBQ series Infrared burners (suitable for keep ... ,no need of accessories equipment,like air blower,fire chamber...BBQ SERIES are suitable for continous working time less than 4hours ...