This is a photograph of a Stuart Turner Double 10V steam engine built into a removable steam plant.
All my boats use a one piece removable unit, as I find it much easier for cleaning & maintainence if the steam plant is removable in one piece.
On this photograph, all the components can clearly be seen, including the crankshaft driven boiler feed pump, the exhaust condenser/oil trap, the Stuart Turner SV4 vertical boiler & the commercial gas canister mounting complete with the gas canister itself. The canister in the photograph is simply painted black as it looks better in the boat. It can be easily removed for display purposes.