5 sentences

1. 烟囱正往外冒烟。

   yān​cōng zhèng wǎng wài mào yān.

   The chimney is belching out smoke.

   Source: Dong Chinese Dictionary

2. 那个旧房子的烟囱冒着白烟。

   nà​gè jiù fáng​zi de yān​cōng mào zhe bái​yān.

   White smoke was coming out of the chimney of that old house.

   Source: Dong Chinese Dictionary

3. 我想他喜欢扫烟囱这个活儿的吧？

   wǒ xiǎng tā xǐ​huan sǎo yān​cōng zhè​ge huó​r de ba?

   I suppose he's fond of chimney sweeping?

   Source: OpenSubtitles

4. 烟囱里冒出的黑烟正不断向上升。

   yān​cōng lǐ mào​chū de hēi yān zhèng bù​duàn xiàng shàng shēng.

   Black smoke is constantly rising from the chimney.

   Source: Dong Chinese Dictionary

5. 他顺着梯子爬上了房顶，准备检查一下烟囱。

   tā shùn​zhe tī​zi pá shàng le fáng​dǐng, zhǔn​bèi jiǎn​chá yī​xià yān​cōng.

   He climbed the ladder to the roof to check the chimney.

   Source: Dong Chinese Dictionary