10-01-2009, 07:54 PM
Another trick that you can use to mark where to drill the holes without assembling the blower house first is to build the blast furnace to get the pipes located. hen you set the blast furnace on a flat surface and dab a bit of lipstick, poster paint, or other colorant that will wash off afterwards. You the push the wall of the blower house against the pipes in the correct orientation to the blast furnace and the marks will give you the locations for the holes.