The Collaborative International Dictionary of English v.0.48:

Stokehole \Stoke"hole`\, n.
   The mouth to the grate of a furnace; also, the space in front
   of the furnace, where the stokers stand.
   [1913 Webster]

WordNet (r) 3.0 (2006):

stokehole
    n 1: (nautical) chamber or compartment in which the furnaces of
         a ship are stoked or fired [syn: stokehold, stokehole,
         fireroom]