In old documents, the word 煙筒 is used to mean chimney.
My grandfather used to smoke tobacco with a kiseru.
Katakana spelling is common for the smoking pipe; 煙筒 is the kanji form.
smoke bomb; smoke candle
Standard kanji spelling for both senses.
Variant kanji form using 烟 instead of 煙; less common.
Compound of 煙 (smoke) and 筒 (pipe/tube). The exact historical derivation is uncertain, but the kanji directly reflect the meanings.