 It is a most important industrial monument, since it is remarkably well-preserved, and dates from a formative period of the Industrial Revolution.Moira Furnace was a coke-fuelled, steam-engine blown blast furnace for the smelting of iron from local iron ore, with an attached foundry for the manufacture of cast-iron goods.The preserved furnace consists of the blast furnace, the attached bridgehouse, and the loading ramp.