B

Baffle - An object or plate installed in an stove or fireplace to change the direction of flue gases often to help burn more effectively. 

Biomass - Biomass is organic material that comes from plants and animals, and it is a renewable source of energy. When biomass is burned, the chemical energy in biomass is released as heat. Examples of biomass include:

• Wood and wood processing wastes. Often in the form of pellets for pellet stoves.
• Agricultural crops and waste materials such as whole, husked corn kernels used in corn stoves.

Blower - A fan with a motor that is often installed in a fireplace or stove to help distribute the heat being produced.