This programmer simplifies wiring and is suitable for use with all external control systems shown in this instruction. Gas supply. The 38/50B requires 1.84 m³/h The Olympic 38/50b is a Non-Condensing Conventional boiler with a maximum power output of 14.66kw that uses Gas as its fuel source. We recommend that youRead these instructions thoroughly before installing the boiler. General The Olympic 38/50F is range rated from 11.14 to 14.65 kW. Boiler Manuals for the Thorn Olympic 38/50B appliance. Olympic 38/50B Installation and Servicing Guide · View Manual · Download - 2.95 MB. i noticed the water wasnt hot anymore, so looked into the inspection hatch and saw the pilot light had gone out. i followed the instructions to re-light the