When it comes to choosing the right size log burner, there are several factors to consider. The size of the room you want to heat is the most important factor. As a general rule of thumb, you will need 1kW of heat output for every 14 cubic meters of space. However, this is just a rough guide, and other factors such as the number of outside walls, the size of windows, and whether they are double glazed, the age of the home, etc., can all influence the heat requirement.

Here are some general guidelines to help you choose the right size log burner based on the size of your room:

• Small wood burner: less than 500 sq. ft. or 4-6 kW
• Medium wood burner: 500-1,000 sq. ft. or 7-9 kW
• Large wood burner: 1,000-2,200 sq. ft. or 10-15 kW
• Extra-large wood burner: over 2,200 sq. ft. or above 15 kW

It is important to size your log burner based on its heating capacity for a full load of wood. A full load is important to reducing creosote buildup and keeping the glass clean. Putting too large of a log burner in too small a space can result in building smaller fires, which can lead to dangerous or unsightly buildup of creosote.

To determine the right size log burner for your needs, measure the room you want to heat, including the height of the room, and use a formula to determine the required heat output. You can also use a stove sizing calculator to get a more accurate figure.