1) The metal glowed in the furnace.

2) We had better fire up the furnace.

3) I stoked the furnace for the night.

4) Embers glowed in the furnace.

5) The walls of the furnace are always scoured.

6) This meeting room's as hot as a furnace.

7) It is time he banked up the furnace.

8) People who work with furnaces in a steel factory need to wear protective clothing.

9) This meeting room's like a furnace.

10) The coals were ashed in a furnace.

11) Keep away from the furnace.

12) It's like a furnace in here can we open a window?

13) You need a team of about twelve people to work a furnace this size.

14) It's cold in here - should I turn on the furnace?

15) Don't forget to damp down the furnace before going to bed.

16) The flame in the furnace can be looked at through colored glasses.

17) There was a low protecting wall to knock down the heat blasting from the pit of the furnace.

18) The flame in the furnace can be looked at through coloured glasses.

19) The furnace broke down and the entire office building has no heat.

20) The furnace man's job was to pump away furiously at the bellows.

21) The process parameters for furnacing gangue and configuration principle of the new type furnace are introduced in this paper.