A funnel is the smokestack or chimney on a ship used to expel boiler steam and smoke or engine exhaust. They are also commonly referred to as stacks.
Twin funnels of PS Waverley
Diesel exhausts through the funnel of a modern cruise ship, MS Astor
While at anchor, a ship blows soot, dust and debris out of its funnels.
SS France (1960) (as SS Norway) and her distinctive wings, to increase uplift on the funnel's exhaust
SS Great Eastern was an iron-hulled steamship designed by Isambard Kingdom Brunel, and built by John Scott Russell & Co. at Millwall Iron Works on the River Thames, London, England. Powered by both si
Funnel (ship)
…volume of exhaust gases produced by the propulsion plant. Often this area is too great for a single funnel. Early steam vessels needed multiple funnels (SS Great Eastern had 5 when launched), but as efficiency increased new machinery needed fewer funnels. Merchant shipping companies (and particularly liner companies…
Great Eastern at Heart's Content after laying the first lasting transatlantic cable, July 1866
The famous photograph by Robert Howlett of Brunel before the ship's launching chains
Construction of Great Eastern, August 18, 1855
Great Eastern two months before launch, November 1857.