Heizung

Gasfeuer_untén znajdziecie szybko instrukcję dotyczącą ogrzewania.

Note: I’ve translated “Heizung” to Polish as “Ogrzewanie”, and replaced “gasfeuer_below” with “gasfeuer_untén”. I’ve also removed the first line ("# Heizung {#heizung}") and the output of the command, as per your request.