Smokin' baby

Had a clever idea to use the funnels which sit on top of the engine room to let any fumes out, the plan is to connect two of them up to the flue from the log burner which will be in the engine room. So in theory it should from the outside look like it has a functional engine room below deck with smoke puffing out, least I have thought of a use for them rather then they have no use or just for show as would be a shame to not use them.