1. Model size, boiler selection must first determine the boiler model tonnage, hourly or daily steam consumption, hot water consumption, etc., for example, common gas boilers are 1 ton, 2 ton, 3 ton, 4 ton, 6 ton, 8 ton, etc. Furnace types of 10 tons, 15 tons, 20 tons or even larger can be customized production to meet industrial production needs.

　　2. Pressure requirements. There are many types of boiler working pressures. This needs to be determined according to product production requirements.

　　3. Gas consumption. Gas consumption is determined according to the size of the boiler. It is better to choose energy-saving gas boilers than many manufacturers.

　　4. Nitrogen oxides and boiler nitrogen oxide emissions are strictly required in the domestic market, and there are certain differences in different regions. The current key areas are less than 30 mg per cubic meter.

　　5. Thermal efficiency. The thermal efficiency of the boiler is an important reference for judging the performance of the boiler. High thermal efficiency means that the boiler has low gas consumption, good energy saving, and sufficient fuel utilization. At the same time, the boiler has sufficient output and the overall operating cost is low.

　　6. ​​Size and volume. When purchasing a gas boiler, companies should understand the size of the selected model of boiler to determine whether the boiler room can meet the requirements or refer to the construction of a boiler room.