(One) 1747 sq. ft. Voss helical finned tube economizer, 270 psi
@ 600°F design pressure, model 84-147-OCF-12-14. 4", 300 psi
flanged inlet and outlet headers with 2" tubes including insulation
outer casing, access door, Copes-Vulcan motor operated rotary
sootblower installed with wall boxes and bearings. 1977.