West Chester, PA: Fieldstone Finnish Contraflow Masonry Heater

This project is a large stone masonry heater in a West Chester, PA home. The family’s old natural gas boiler was due for an expensive repair and servicing or complete replacement. The family decided to go for clean burning masonry heater instead for the home’s primary heat source.

The large fireplace is faced with local Pennsylvania fieldstone surrounding the high temperature core. This is a Finnish contraflow design masonry heater. There is an optional bake-oven for cooking above the firebox as well as a long heated bench. The fire’s exhaust gases travel through this bench before exiting into the fieldstone faced chimney to the right of the firebox.

The fireplace and heated bench are capped with flagstones.



The chimney is faced in fieldstone as well. The chimney transitions to a metal, double wall insulated pipe above the ceiling in the photo below.

Fire Works Masonry