On the outside of the Aspen high efficiency condensing boiler is sleek, smart, ergonomically optimized styling. 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
• Two light commercial models; 320 & 399 MBH (floor mount or wall hung, specifications available separately)