1. William Wilkinson of Wigan patented the exhaust steam reheating system about 1881. 2. The boiler was fed using " Friedmann " exhaust steam injectors. 3. Exhaust steam was re-condensed instead of escaping and fed back to the boiler.4. The front cylinders were fed with the exhaust steam of the high-pressure cylinders. 5. A feedwater heater is placed around each cylinder where the exhaust steam exits. 6. This heated the exhaust steam to avoid it condensing into a visible white plume. 7. It removes heat from the engine exhaust steam to condense it back into water. 8. Two small chimneys were fitted to each tender to discharge the exhaust steam from these cylinders. 9. Exhaust steam from the cylinders of each engine unit was led to the smokebox by separate pipes.10. The tender was capable of condensing of exhaust steam per hour in maximum operating temperatures of between.
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