This photograph shows the mounting arrangement that I use for commercial gas canisters.
The boiler is a Stuart Turner SV4 Vertical type, with firetubes. The exhaust condenser/steam trap is set immediately behind the boiler.
The steam engine is a Stuart Turner Double 10V, fitted with a crankshaft driven water pump. The pump is not visible in this photograph, but the steam plant is featured in other photographs in the Gallery, where the pump arrangement can be seen clearly.