Our NEW Starting Lineup
Aspen – Firetube Condensing Boiler
• 10:1 turndown
• 96% AFUE
• Advanced Sage2.3™ boiler control
• Combi model available (155 MBH)
Now taking the field…with 10:1 turndown!
The new, advanced Sage2.3 boiler control system now offers 10:1 turndown and impressive
gains in efficiency. The K2 is now 95% AFUE for all sizes and later this year, a new K2
combi model will offer efficient heating and domestic hot water performance at a VERY
competitive price. The Aspen firetube boiler offers an impressive 96% AFUE in residential
sizes, and is also offered in two light commercial sizes (320 & 399) as well. Best of all, these
products are all manufactured in Lancaster, PA, USA and offer the kind of reliable performance
that you have come to expect from the Burnham brand and U.S. Boiler Company.
Aspen Light Commercial
• 10:1 turndown
• 95% thermal efficiency
• Fire tube heat exchanger
• Advanced Sage2.3™ boiler control
for more information, visit www.usboiler.net
K2 – Condensing Boiler
• 10:1 turndown
• 95% AFUE
• Advanced Sage2.3™ boiler control
• Combi model available late 2017