Natural Gas  Installation-Opening of meters 

 

Piping with =< DN50 and MOP =< 100 mbar and boiler for central heating system with a nominal power lower than 70Kw according to the following standards:

      NBN D 51-003 (natural gas system installed inside and placing of related equipment)

      NBN D51-004 (Installation of piping system for flammable gas lighter than air)

      NBN B61-002 (central heating system with a nominal power lower than 70Kw. Specification of the boiler room, air inlet and fumes exhaust)