Examples from the Web for ash-pit
When the motor is running properly, the amount of water fed to the vaporizer and overflowing to the ash-pit is properly adjusted.Gas-Engines and Producer-Gas Plants|R. E. Mathot
The furnace is formed in three pieces; a dome, a body, and an ash-pit.
The holes of the grate are truncated cones, having the greater base below, that the ashes may more easily fall into the ash-pit.
She could not rest until she had thoroughly cleaned; so she went down to the ash-pit with her dustpan.Sons and Lovers|David Herbert Lawrence
Dead-platesSolid sheets of steel on which the fire lies the same as on the grates, but with no openings through to the ash-pit.Farm Engines and How to Run Them|James H. Stephenson