A kiln was a handmade fireplace used for different purposes.
The Bajoran farmer Mullibok built a kiln of bricks in front of his cottage on the Bajoran moon Jerrado in 2369. Major Kira Nerys helped him to finish this work and then destroyed it by shooting with her phaser. The kiln exploded. Kira wanted to save Mullibok's life by taking him away from the moon, but Mullibok refused. Finally, when Kira destroyed the kiln and set the cottage on fire, Mullibok came with her, although he did not say a word to her while they beamed up. (DS9: "Progress")