Aquaculture is one of the important components of agriculture in most countries, and it is the two pillars of agricultural production alongside planting. In the process of hatching and hatching of egg-laying livestock such as chickens, ducks and geese, it is necessary to maintain a stable temperature environment. While seafood such as shrimp and crab also have very high requirements for diet and temperature of living environment. Therefore, aquaculture enterprises need to use boilers for corresponding temperature maintenance and livestock diet treatment. The breeding environment of different kinds of agricultural products requires the selection of corresponding boiler equipment. If steam boiler is selected, it can be directly used as the power source of the farm, and can also maintain the temperature in the farm through plate exchange treatment device. If the customer select a hot water boiler, he can set the temperature difference change to maintain a constant temperature state.

The customer reached the cooperation with Xinli boiler is an enterprise with cow breeding resources, which is also a large domestic cow breeding company and high-quality raw milk supplier. The enterprise has built 15 dairy farms with the scale of 10000 cows in the country, and the number of cows on hand is 190000. Xinli boiler combined with the current situation of the enterprise's pasture, considering that dairy farming will be accompanied by the production of various organic substances such as dung, straw, sewage, etc., so it used the closed biogas digester as boiler fuel, and provided the enterprise with a 1.2 million kcal methane fired hot water boiler. It makes full use of  the farm resources, reduces the use of boiler fuel by enterprises, and save fuel costs for enterprises. At present, the boiler is going well, and the customer highly recognizes the hot water boiler equipment provided by Xinli boiler. The following figure shows the operation site of the boiler: