Can You Use Compressed Wood Bricks In A Rocket Mass Heater?

Choosing Compressed Wood Bricks

When selecting compressed wood bricks for use in a rocket mass heater, look for products with a moisture content of 15% or lower. These bricks are more likely to burn efficiently and produce less ash. Some manufacturers also offer bricks with a higher density, which can be beneficial in a rocket mass heater where a consistent burn rate is desired. A density of 0.8-1.0 g/cm^3 is a suitable range for compressed wood bricks in this application.

Preparing Compressed Wood Bricks for Use

To prepare compressed wood bricks for use in a rocket mass heater, they should be allowed to dry further if they have a higher moisture content than recommended. This can be done by storing them in a well-ventilated area or using a desiccant to draw out excess moisture. Once dry, the bricks can be cut to size using a saw or a hammer and chisel to fit the specific requirements of the rocket mass heater. A 2-3 inch cut size is commonly used in rocket mass heaters, allowing for efficient combustion and minimal ash production.