Forced draft. Two 12 ft fans (Cofimco), with 40 Hp motors. Four rows, three passes. 276 tubes which are 40 ft long, SA-249, TP304H stainless tubes, 1" OD x 0.049" thick. 11 aluminum fins per inch, 2.25" fin OD. 2.375" pitch. Bare tube surface is..
Relevance: 17.72441