Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Central heating-en#Sense
Riscaldamento centrale-it#Sense
Chauffage central-fr#Sense
Zentralheizung-de#Sense
Opvarmning med centralvarme-da#Sense
Centrale verwarming-nl#Sense
Centralvarme-da#Sense