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Up to 96% Efficiency

Aspen

High Efficiency Gas Boiler - Combi Model Available!
Stainless Steel Heat Exchanger

U.S. Boiler Company Aspen High Efficiency Condensing Boiler

The high efficiency boiler designed for efficiency, performance, and versatility. 

On the outside of the Aspen high efficiency condensing boiler is sleek, smart, ergonomically optimized styling  – 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.

Sizes:

  • Six wall hung models; 85, 110, 155, 205, 270 MBH
    • Optional floor stand available – NEW!
  • Two light commercial models; 320 & 399 MB
  • 155 MBH combi model available!
    • Best-in-class DHW performance

Premium 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

Valuable Extras: 

  • 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

 

  • Product Data Sheet & Specifications
  • Product Line Brochure
  • Technical Manuals & Information
U.S. Boiler Company Aspen High Efficiency Condensing Boiler
  • ENERGY STAR Rated ENERGY STAR Rated
  • Sage2.3™ Boiler Control Sage2.3™ Boiler Control
  • Sage Zone Control: Circulator & Valve Panels Sage Zone Control: Circulator & Valve Panels
  • Related Water Heater Related Water Heater
  • Manufacturer's Warranty Manufacturer's Warranty
  • AHRI Energy Labels & Product Certification AHRI Energy Labels & Product Certification
U.S. Boiler Company is a leading manufacturer of home heating equipment, water boilers, steam boilers, hot water heaters, radiators and boiler control systems.
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