China Compulsory Certification, in abbreviation 3C or CCC,is a product conformity assessment system implemented by the Chinese government in accordance with laws and regulations, which meanto protect consumers' personal safety and national security, strengthen product quality management.Before Oct 1, 2019, gas combination boilers had been under compulsory administration of 3C regulations.

Lately, two high efficient combination boiler designed and manufactured by our company have attained 3C approval, non premixed condensing boiler with efficiency up to 99% to 101%, the model number HWB-L15 and premixed condensing boiler with efficiency reaching 109%, HWB-LL08. That is to say, these condensing combination boiler, after thoroughly tested by the authority, are officially qualified to sell in China market. This is a big and happy news to us. We aim to provide more energy-efficient, cost-effective and environment-friendly products. We couldn't wait to share them with our esteemed customers!