Do after-sales installers of water heaters need qualification certificates?

Need. According to the query, Northern Network shows that. All electrical installers need electrician certificates. Electrician certificate refers to the special operation certificate. It is the professional qualification certificate with unified style, standard and number of People's Republic of China (PRC) Emergency Management Department. Special operations personnel must receive special safety technical training, pass the examination and obtain the People's Republic of China (PRC) Special Operations Operation Certificate before taking up their posts.