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Description
On the outside of the Aspen condensing boiler is the sleek, smart, ergonomically optimized styling that U.S. Boiler pioneered last year – an elegant design so striking that it has actually been adopted by others in the industry. But that’s where the comparison ends. On the inside you’ll find a proven stainless steel firetube heat exchanger and an advanced combustion system, designed to set new standards for reliability, efficiency, ease of installation, and operation.

Features:
  • Up to 96% AFUE with 10:1 turndown - High efficiency AND low emissions!
  • Field-proven, stainless steel fire tube heat exchanger
  • Advanced Sage2.3 boiler control provides "out-of-the-box" high performance and easy setup
  • Easily connects to optional Sage Zone Controls for additional energy savings, system optimization, and "short cycle" prevention
  • High altitude - zero or minimal de-rating reduces the costs of oversizing, field adjustable
  • Easy access side service panel
  • Versatile top and bottom connections for supply & return (heating-only models)
  • Universal vent connection for CPVC/PVC, polypropylene, and stainless steel flex
  • Split-voltage junction box, fused easy-connect terminals
  • Outdoor reset and sensor (wired)
  • Piped and wired for low water cutoff installation
  • 5-year parts warranty
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Specs
System Type:
Hydronic (Water)
Efficiency:
95%
IBR Rating:
69000
BTU Output:
69000
DOE Rating:
79000
BTU Input:
85000
Fuel Type:
Natural Gas
Propane
Features:
Condensing
EI/Spark Ignition
Touchscreen
Material:
Stainless Steel
Vent Size:
2"
3"
Height (Inches):
33.3125"
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