The steel boiler was supplied by John Rex Model Engineers in 2017, the locomotive having its first steam test in April of that year.
Complete with a steel bodied braked tender carrying a water tank - it provides a comfortable driving position, with upholstered seat and capacious foot tray.
| gauge | 7 1/4 inch |
| length/inches | 51 + 46 |
| width/inches | 21 |
| height/inches | 31 |
| bore x stroke/inches | 2 1/4 x 3 |
| wheel material | cast iron |
| cylinder material | cast iron |
| valve type | slide |
| valve gear | Hackworth |
| reverser type | pole |
| lubricator type | 2 x mechanical |
| injector(s) | 1 |
| boiler number | JRME 0230/17 |
| year built | 2017 |
| boiler maker | John Rex Model Engineers |
| CE mark | yes |
| working pressure/psi | 120 |
| boiler type | marine |
| boiler material | steel |
| boiler construction | welded, expanded tubes |
| hydraulic test valid to | 25-Aug-2022 |
| steam test valid to | 22-Dec-2021 |
| fusible plug | yes |
| safety valve(s) | 2 |
| safety valve type | spring |
| mechanical pump | 2 x axle |
| hand pump | 1 |