PLEASE READ IN FULL !  .  , Wilesco presents the reissued D12. Their smallest twin cylinder steam engine which has two oscillating cylinders. The Steam engines fan's nickname for the machine is "the wild thirteen". This powerful machine has a brass boiler and two brass oscillating cylinders. The distributor block in the middle distributes the steam between the two cylinders. The block assembly also serves as a central point for oil distribution. The black base plate and the red boiler house create a classy overall impression. New for this size of machine, is the steam control, which is managed by a steam valve. This allows any connected driven models to be regulated to the desired speed.Comes as std with a gel burner tray and a bottle of gel. Convert your engine to gas with our Bix gas  conversion. Engine  now available with Bix 026 gas conversion set at a special price of £290.74... This would be £311.99  if bought seperatley. . For even greater savings buy the engine ,gas set and the  Bix 019 refill adapter for £306.48, Bought seperatley total cost £ 332..98 You will NOT need the Bix 019 refill adapter  if you already have one . .Comes complete with full operating instructions..No modifications required to the engine.  .This BIX 026 kit also fits D5.D6,D9, D10,D11, D16 and other makes of smaller engines. You only need to buy one to fire a multitude of engines.!