burner vs central heating

burner

noun
  • An element on a kitchen stove that generates localized heat for cooking. 

  • A pyrotechnic tear gas canister. 

  • An elaborate piece of graffiti. 

  • A gun. 

  • Someone or something which burns. 

  • A device that allows data or music to be stored on a CDR or CD-ROM. 

  • A device that burns fuel; e.g. a diesel engine; a hot-air balloon's propulsion system. 

  • A device that generates localized heat for experiments; a Bunsen burner. 

  • A device for burning refuse; an incinerator. 

  • An app that creates temporary phone numbers for a user. 

central heating

noun
  • Any of various heating systems in which a central source of heat is used to distribute heat (and sometimes hot water) throughout a building in a controlled manner. 

How often have the words burner and central heating occurred in a corpus of books? (source: Google Ngram Viewer )