Heat Recovery Boiler
37. Heat recovery boiler - steam or hot water boiler without a furnace or with a furnace for gas combustion, in which hot gases from technological or metallurgical processes or other technological product streams are used as a heat source
Source: Order of the State Atomic Energy Supervision of Russia No. 4, Order of the State Industrial Safety Supervision of Russia No. 98 dated 19.06.2003 "On approval and introduction into force of federal norms and rules in the field of atomic energy use "Rules for design and safe operation of steam and hot water boilers for nuclear power facilities" (together with "Rules ... NP-046-03") (Registered by the Ministry of Justice of Russia on 10.07.2003 No. 4884)