[ ash-pit ]
/ ˈæʃˌpɪt /
a receptacle in the bottom of a fireplace, under a barbecue, or the like, for the accumulation of ashes.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for ashpits
It involves the keeping dean of flues, ashpits and especially the fires themselves.