Do you find yourself wishing that the Aspen™ line included larger sizes so you could have a light commercial boiler with a reliable, field-proven, stainless steel firetube heat exchanger Wish no more. The Aspen™ line now includes a 320 and 399 mbh model so you can efficiently heat larger applications. Impressively, this boiler can be wall or floor mounted due to a pre-installed wall bracket and adjustable feet. Also unique to this boiler is the ability to swap the touchscreen display and boiler logo badge for optimal ergonomics.