1 Vaillant (one of the largest international heating groups in Europe, one of the top ten brands of wall-mounted boilers, a multinational family enterprise with a history of 135 years)

2 Bosch ( Founded in 1886 in Germany, a well-known brand, one of the top ten brands of wall-hung boilers, one of the largest gas boiler suppliers in Europe, industry influence)

3 Ariston (founded in 1930 in Italy, a brand of wall-hung boilers , a global leading company specializing in the production of heating and hot water products, a multinational company)

4 Baxi BAXI (the largest wall-hung boiler manufacturer in Europe and one of China's top ten wall-hung boiler brands, provides the world with the most advanced heating and domestic hot water system)

5 Beretta (started in 1973, one of the top ten brands of wall-mounted boilers, a major supplier in the heating field in China, and the largest heating equipment manufacturer in Italy)

6 Little Squirrel (Guangdong famous trademark, national high-tech enterprise, China's top ten wall-mounted boiler brands, the earliest domestic manufacturer of household wall-mounted boilers)

70,000 and Vanward (China's well-known trademark, China Famous brand, wall-hung boiler brand, national key high-tech enterprise, Guangdong Province famous trademark, Guangdong famous brand)

8 Macro (Guangdong Macro Gas Appliances Co., Ltd. (hereinafter referred to as "Macro") is a listed company Guangdong Macro Co., Ltd. Company)

9 Noko (Hefei Noko Heating and Cooling Equipment Engineering Co., Ltd. (Anhui HVAC Network) specializes in sales, design, and installation of domestic and foreign medium and high-end)

10 Guosen (China A subsidiary of the Top 500 Enterprises (Chunfeng Industrial Group), one of the top ten brands of wall-mounted boilers, and the first to enter the gas heating and hot water boiler industry in China)