The Mamod 1313 which is basically a TE1A is powering my water pump, which is actually a little oscillating steam Engine which can be used without any extra work as a water pump.
The Mamod is basic apart from an uprated safety valve, water top up valve and a Gas burner, all of which I use on my Mamod Centurion, which is a superior model in my opinion due to the double acting cylinder and silver soldered Boiler.