Roundhouse took over the manufacture of Jack Wheldon's Pooter (see the advertisement below) and this is an example of the result. Roundhouse Engineering took over production of the Pooter from Jack late 1983/early 1984. Jack was hand building every model and could manage about two, perhaps three a year and, at the time Roundhouse took over, Jack had over twenty on order. Roger Loxley of Roundhouse met Jack when Jack reviewed the Roundhouse Lady Anne locomotive for Model Trains magazine in 1983. He liked Roger's work and they found they had much in common and became great friends, sharing ideas on small scale steam loco design. The Roundhouse 'Lady Anne', which at that time was meths fired, shared a similar firebox to Jack's 'Pooter' but the 'Pooter' type was certainly superior and very few changes were made to enable it to be commercially produced. (History suppled by Roger Loxley of Roundhouse Engineering.)

The Pooter was the first commercial offering of the Wheldon firebox. Pooters are hard to come by, and the Hackworth valve gear is very interesting to watch. This locomotive has an interesting cab roof that hinges to the side, and the meths tank is between the frames as usual but just has a 3/4" (or so) hole in the top for adding fuel... it also makes it very easy to see the level in the tank.