Every dimension belongs to an object and a drawing. Original room numbers, object marks, printed values and source regions stay together—even when the answer is unresolved.
464 of 464 photographs have extraction records, containing 27,517 properties. Initial image review is not exhaustive extraction: 0 photographs have passed the full-region check. 66 numbered sheets are reconciled. Modeling and architectural registration are separate work; these counts do not establish a complete building.
Download the structured register (JSON)Object: Oil-heating-coil detail and surrounding tank witness
Printed values, calculations, image traces and observed counts are different kinds of evidence. “Verified” applies to the specific reading—not to the whole room or model.
16 in
Horizontal arrow endpoints bracket coil at its upper turns; diameter is source-detail geometry, not tank diameter.
Drawing notation: 16″ DIAM.
Horizontal arrow endpoints bracket coil at its upper turns; diameter is source-detail geometry, not tank diameter.
9 ft
Vertical annotation beside oil-heating-coil detail supplies a distinct tank-diameter witness. Retain separately from 8′-0″ DIA. in fuel-oil-tank detail: target correspondence, endpoints and governing revision unresolved; no replacement or reconciliation.
Drawing notation: OIL TANK 9′-0″ DIA.
Vertical annotation beside oil-heating-coil detail supplies a distinct tank-diameter witness. Retain separately from 8′-0″ DIA. in fuel-oil-tank detail: target correspondence, endpoints and governing revision unresolved; no replacement or reconciliation.
Conflicting readings: detail-1340o-tank-diameter
1.25 in
Leader to upper-left oil-return stub; nominal size, not outside diameter or installed route.
Drawing notation: 1¼″ OIL RETURN
Leader to upper-left oil-return stub; nominal size, not outside diameter or installed route.
1.25 in
Separate lower-left return stub in oil-heating-coil detail. Service suffix retained exactly; no broader system connection inferred.
Drawing notation: 1¼″ RETURN
Separate lower-left return stub in oil-heating-coil detail. Service suffix retained exactly; no broader system connection inferred.
Screen annotation near lower return/suction details; mesh, metal and dimensions unresolved.
Drawing notation: WIRE SCREEN
Screen annotation near lower return/suction details; mesh, metal and dimensions unresolved.
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.