1), steel finned tube convector heating system should meet the operating pressure and system pressure requirements should be consistent with national or industry standards. 2), in open heating systems and high humidity rooms (such as bathrooms, swimming) should not be used just made radiator. 3), the test results and data products were identified by checking the sample (test product requirements for sampling products Inner air heating unit, the test report within nearly two years). 4), the manufacturer shall provide steel finned tube convector radiator water resistance characteristics of the data. 5) of the steel finned tube convector radiator appearance inspection. Each site should be smooth weld heating unit, the interface should be finely machined surface and ensure squareness and flatness. 6), the product is suitable for hot water heat medium working pressure 1.0MPa air circulation heating units, steam heat medium 0.3MPa. 7), should check whether the radiator with excellent quality steel (on seamless steel tube for conveying fluid or low pressure), the bonding process between the pipe and fin tubes are tightened. Flow and Heat Transfer in the radiator features: (1) when the three-hole probe measurements of flow field radiator airflow passing between two fins, study the flow characteristics of the radiator; (2) study the local heat sink case Under the heat transfer characteristics; and (3) to establish a three-dimensional computational model radiator flow and heat transfer, the test conditions were simulated; (4) comparing the effects of intake mode radiator heat transfer performance; (5 ) compared the effects of the heat sink fins in the form of flow and heat transfer characteristics; (6) to establish a model for optimal design of the radiator, radiator optimized design. The test results are given between the two radiator fins flow field velocity vector, observed around the flow of gas to flow through the radiator when the phenomenon, and to verify the situation of local heat flux and average heat flow is a big difference. Inner air heating unit heating unit _ _ Watson Watson air conditioning provided by the Texas air-conditioning plant. Texas Watson air-conditioning plant (www.wchuaxin.com) (www.wchuaxin.com) strong, credible, Shandong Texas heat, refrigeration and air conditioning equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Watson air conditioning and you hand into the brilliant, for a better future!