Masonry Magazine January 1984 Page. 25
and construcuon of the rountain-style heater. The fountain-style heater, often referred to as a Finnish stove or vertical contra-flow masonry stove, is believed by most experts to be the most efficient brick masonry heater. For proper combustion, the air intake to the combustion chamber should be approximately 0.80 cfm/lb (0.00083 m³/sec/kg) of wood being burned in the combustion chamber. This requirement is for the typical size fountain-style heater, which is usually loaded with 10 lb (4.5 kg) to 20 lb (9.1 kg) every 30 min for a 2-hr period.
Base Assembly
In the fountain-style heater, the baffle system provides for the circulation of combustion gases under the hearth of the firebox where they are vented to the chimney. Thus, when designing and constructing this style heater, the baffle system and chimney support must be incorporated into the base assembly.
Foundation
The foundation system must be adequate to support the mass of the brick masonry heater and the masonry chimney. When designing the foun-