Heating your home with an outdoor wood boiler can be a great way to save both time and money during the winter months. Modern fossil fuel-based heat methods are almost always more expensive than wood, which can be sustainably harvested from your own land or purchased for a modest sum. Outdoor boilers allow you more flexibility than wood stoves, since they can burn almost any type of wood and help keep your house clean by leaving all of the bark, dirt and bugs outside.
Here are seven reasons you should consider an outdoor boiler:
1. Greater efficiency.
Outdoor wood boilers are often referred to as “wood gasifiers” because they technically burn the wood twice, extracting extra BTUs of heat energy that are otherwise lost up the chimney in a traditional wood stove. In the initial burn chamber, wood is burned as it would be normally, and the energy begins heating a thermal reservoir that will be piped to your house. The gas created in the initial burn chamber is then “re-burned” to extract additional heat energy from the volatilized gasses produced by the initial burn.
2. Works with softwood or hardwood.
Since the wood gasses are burned more efficiently in an outdoor boiler, you’re able to burn softwood, including fir, white pine, cedar and hemlock, all of which are dangerous to burn indoors in a normal wood stove.