Are There Specific Designs for Masonry Heaters in Snowy Regions?

Designing for Snow Load

In areas with heavy snowfall, masonry heaters must be designed to withstand the additional weight and stress caused by snow accumulation. A common design approach is to increase the thermal mass of the heater by using thicker masonry walls or adding insulation to the exterior of the heater. For example, a masonry heater in a snowy region might use 2-3 inches of insulation on the exterior, compared to 1-2 inches in a milder climate.

Masonry Heater Design Considerations

When designing a masonry heater for a snowy region, it’s essential to consider the roof slope and overhang to prevent snow from accumulating directly on the heater. A minimum roof slope of 4:12 is recommended to ensure snow slides off the roof rather than accumulating on the heater. Additionally, the heater’s chimney should be designed to handle increased snow load and wind resistance.

Example Designs for Snowy Regions

One example of a masonry heater design suitable for snowy regions is the “snail shell” design, which features a rounded, domed shape that allows snow to slide off easily. Another design approach is to use a “crown” or “cap” on the top of the heater, which provides additional structural support and helps to shed snow. These designs require careful planning and execution to ensure the heater can withstand the unique challenges of a snowy climate.