Domestic farms have also used gas heating for decades. Farms are very familiar with gas, gas pipeline and heating equipment. Gas heating is also slowly becoming popular. The cold air enters from the bottom of the heater, mixes  with the fuel gas in the combustion chamber, and after full combustion, the wind wheel blows the hot air out of the heater. The open fire is all inside the heater and equipped with multiple installation devices to ensure production  safety. As the fuel is natural gas or liquefied petroleum gas, mainly hydrocarbons, the products of full combustion are  carbon dioxide and water vapor, which is green and environment-friendly.