What’s the capacity of my wood burning appliance for heating my home?

This really depends. The most influential factor is the size of your firebox in cubic feet. Larger fireboxes can burn more fuel, therefore heating a larger space more effectively. Other important factors are the kind of wood you burn and how well insulated your home is. This includes the quality of your doors and windows the insulation around your sidewalls and ceilings. Also, the size of your rooms is a factor to consider. These factors will influence the efficiency of your wood burning appliance when it comes to heating your home.