Tonedal Mill - the boiler house

This shows four derelict Lancashire boilers. The left one (and a further one to the left which cannot be seen) probably went out of use first and are fitted with chain grate stokers for burning coal. The third on the right has Hamworthy rotating cup oil burners. And the most right is a modern Cochrane package boiler. See another version in the PiP. The photos were taken through a broken window.