Steam Boilers. Horizontal return tubular: 15 sq. ft. of heating surface = 1 h.p. Vertical internally fired: 12 sq. ft. of heating surface = 1 h.p. For approximate results the following dimensions may be used to determine whether or not a boiler is within the limits mentioned in this instruction:
Appears in 4 contracts
Samples: Collective Agreement, Collective Agreement, Collective Agreement
