There is evidence in the form of filled-in post hole impressions in the basement floor, that a coal bin once stood beside the north wall. Presumably coal was poured into the bin via a chute through the central basement window on the north side. Since the museum records show deliveries of both bituminous and anthracite coals to the residence, it seems a reasonable assumption that some form of anthracite (smaller and therefore easier to handle by shovel) was the primary type used in the garage heating system.
The entire steam supply header system is mounted above the boiler. At the right above are the manual control valves for the four circuits of the steam delivery system, and about three feet lower a similar set of valves for the condensate return system. The black-painted pipes located to the far right, against the east wall of the basement, are part of the later-installed hot water circulation system.
The gas hot water heater in the background is part of the contemporary plumbing system. Scale units are 1 foot.