The boiler house at Rugeley B contained two Foster Wheeler John Brown boilers, one per generating unit. They were coal-fired, radiant boilers with superheaters and economisers. Each unit had 7 pulverised fuel mills, fed from the 14 coal feeders situated above them.
Coal for the boilers was originally supplied via a conveyor directly from the neighbouring Lea Hall Colliery. The colliery closed in 1991, meaning from then on all coal needed to be delivered via rail. Rugeley had a rail-unloader, allowing hopper trains to empty their contents directly into the hoppers below. An extensive network of conveyors then transported the coal between the rail-unloader, coal store and the power station itself.