Boilers are divided into boilers, hot water boilers, steam boilers, thermal boilers and hot air
Boiler, etc.; The fuel is divided into electric heating boilers, oil-fired boilers, gas boilers, coal-fired boilers, biogas boilers, solar boilers, etc. The boilers are divided into k-d boilers, ks-y oil boiling boilers, ks-q gas boilers, ks-aii boilers, etc. Hot water boilers are divided into CLDZ (CWDZ) hot water boilers, CLHS (CWNS) hot water boilers, gas hot water boilers, CLSG (CDZH) coal hot water boilers, etc. Steam boiler is divided into LDR (WDR) electric steam boiler, LHS (WNS) steam boiler, gas steam boiler, LSG, DZG, DZH, DZL coal steam boiler etc.