... than 100,000 yuan, more than oil, gas direct fired boiler oil, burning gas savings cost 50-70%, the annual cost ... Cost is a half of fuel oil and fuel gas. E. No harmful gas, waste water and waste slag discharge, also can ... h)Fire coal(kg/h)Fuel oil(kg/h)Fire gas(Nm3/h)Value(Kcal)DN-0.50.751.52.2 ... 0120011004806004800000DN-10.04113.6*1.8*2.0150013506007506000000 industrial biomass burners for boiler