Been putting this off for a while but last night I started adding a second blast furnace to D&D Mining and Steel. I had to move the #1 BF about 6 inches to allow for the stoves to the #2 BF. The roof sections will not be permanently attached but attached with magnets so it can be removed to be viewed on the inside. Had to relocate the blower house (spot undetermined yet). After the blast furnace, a 2nd ore bridge and 2nd hullett will be built.