I've mounted a couple of MTH smoke units in different ways for different reasons. One was in a G scale MP15AC scratch built switcher. I used plastic pipe and cut and glued together angled pieces to run from the dual stacks down to the single funnel to the smoke unit. I should have used 2 units but I didn't.
I'm working on an O scale challenger that the smoke stacks are spread pretty far apart. To make matters worse, they protrude into the boiler a bit and the bottom of the boiler protrudes upwards right there. So at first thought, I was going to skip the smoke. I know our grandson would be disappointed if she doesn't smoke. So I'm mad at myself for getting lazy here.
So it appears that I may have to make some type of custom smoke chamber again to feed the dual stacks and yet allow oil to be added. Because of the tight fit and heat generated I'm considering soldering copper tubes together to handle the heat and make up a short custom funnel. It's so tight that I'm frustrated. 2 units would be a challenge to cram into that tight space. A stock funnel doesn't come near covering the stack's holes. Maybe a crushed copper pipe with drilled openings? I have like a half an inch to work with-in.
Anybody have to do this?
Looks like Lionel has something:
