The Monessen Harmony insert now comes in a larger size. With five different framing choices and a variety of interior options, the Harmony direct-vent gas insert is in perfect tune with the style that your customers are looking for—and with the increased heating efficiency that this insert offers, they will also save energy and lower their fuel costs. It’s never been easier for customers to upgrade their masonry fireplaces with a punch of style (while pursing greener living).