Fitted with a commercially-built CE-marked copper boiler, since last here the locomotive has been completed and painted.
| length/inches | 42 |
| width/inches | 11 |
| height/inches | 17 |
| wheel material | cast iron |
| axlebox type | plain |
| cylinder material | cast iron |
| valve type | slide |
| valve gear | Stephensons |
| reverser type | pole |
| injector(s) | 1 |
| boiler number | ST 1155.05.14 |
| year built | 2014 |
| boiler maker | Steam Technology |
| CE mark | yes |
| working pressure/psi | 90 |
| boiler type | locomotive |
| boiler material | copper |
| boiler construction | TIG-welded/silver soldered |
| hydraulic test valid to | 24-Jun-2023 |
| fusible plug | no |
| safety valve(s) | 1 |
| safety valve type | spring |
| mechanical pump | 1 |
| hand pump | 1 |
| steam pump | 1 |
| whistle | yes |