Prestige Cascade Condensing Solo Boiler

Prestige Cascade

The Prestige Cascade can combine 2 to 5 Prestige 399 boilers for outputs from 500 to 2000 MBH, or 2 Prestige 250 boilers for outputs from 65 to 490 MBH. The boilers’ integrated Cascade Control minimizes setup time. With a maximum turndown ratio of 18 to 1, the Cascade provides ample output during peak demands, yet adjusts its output during lower demands to minimize boiler cycling and maximize efficiency. The Common Vent for the Cascade Systems using Prestige 399 boilers allows either 2 or 3 boilers to be joined to a common vent, reducing venting space, installation time, and cost. The polypropylene venting meets ULC S636 requirements and is designed to optimize the system performance. A single wall penetration would be required for either the 2 or 3 boiler models. Several termination and flashing options are available.

Features and Benefits

  • Joins 2 to 5 Prestige Boilers for Maximum Inputs of 500 to 2000 MBH
  • Utilizes the Prestige heat exchanger for up to 96% AFUE
  • Multi-function rack mounts and joins boilers to provided manifolds
  • Turndown ratio of up to 18 to 1
  • Common vent available for 2 or 3 boilers
  • Hydraulic junction minimizes head loss, provides air separation, and eliminates system debris through the built-in drain

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Product Comparison

Cascade Kit P/N # of Manifolds # of Solo 250 or 399 Boilers Total Input MBH Note 1 Total Output MBH Notes 1 & 2 Total Net IBR Rating MBH Note 3 Total EDR Water Ft2 Note 4 Total Output Boiler Horsepower Minimum Recommended System Iron Pipe Size Note 5 Minimum Recommended Natural Gas Header Size Note 6
C (PS or RR) 500 1 2 (250) 65-490 446 388 2,588 13.3 2″ 2″
C (PS or RR) 800 1 2 (399) 112-798 758 659 4,396 22.6 3″ 2″
C(PS or RR) 1000 2 4 (250) 465-980 892 776 5,176 26.6 3″ 2.5″
C(PS or RR) 1200 1 3 (399) 112-1197 1,138 990 6,603 34.0 4″ 2.5″
C(PS or RR) 1600 2 4 (399) 112-1596 1,518 1,320 8,804 45.3 4″ 3″
C(PS or RR) 2000 2 5 (399) 112-1995 1,897 1,650 11,006 56.7 4″ 3″