Aspen Firetube 126,000 BTU High Efficiency Wall Hung Condensing Gas Fired Boiler

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