This is the 11615th most frequent Korean word.
난로를
"난로를" means "heater" or "stove" in the object form.
The word '난로를' in this sentence is used in the accusative case, indicating the object '난로', which means 'stove', receiving the action of being used (사용해).
겨울에는 난로를 사용해 방을 따뜻하게 합니다.
In winter, a stove is used to warm up the room.
Here, '난로를' is the object of the sentence, showing that the speaker performed the action of buying (샀습니다) directed toward the 'stove'.
난로를 새로 샀습니다.
I bought a new stove.
In this context, '난로를' again marks the object '난로', highlighting its usage in the action of utilizing (이용했어요) during camping.