The basic effectiveness of all of these different systems are roughly down to the same factors - a design that allows for very high burn temperatures extensive secondary combustion (re-burning of smoke/emissions) and, in the case of masonry heaters and rocket stove mass heaters, an extensive amount of thermal mass in combination with a long or labyrinth structure meant to absorb the heat from the outflow.īelow, I’ll go into the details of the different methods and technologies. Those wanting a permanent solution to home/building heating or portable outdoor heating, though, will benefit from systems designed for long-term use, such as masonry heaters rocket stoves and rocket stove mass heaters. Such systems need not be particularly complex or intensive to build - the so-called Dakota fire pit, for instance, is a means of producing a very high-heat and low-smoke campfire. ![]() While the assumption of many people is probably that wood or biomass burning inevitably results in high levels of smoke and particulate emissions, the reality is that well designed systems need not result in the release of much of anything beyond CO2 (carbon dioxide) and water vapor. Efficient Wood & Biomass Burning - Design, Secondary Combustion, & Particulate Emissions Levels With that in mind, I’m going to provide an overview here of most efficient ways out there currently to produce heat from wood and biomass burning - that is, the ways that involve complete or near-complete combustion, and thus higher heat production and oftentimes much lower particulate emissions. ![]() Obviously, at current population numbers, though, widespread reliance upon woodland/coppicing biomass and charcoal is an impossibility, but at much lower population numbers, such an approach is probably as close to environmentally benign as you can get while still maintaining reliable and constant access to heating/cooking tech (though, intelligent building siting and design can greatly limit needs in this regard as well). The burning of wood and biomass has gotten something of a bad reputation amongst some in the environmental community in recent years, despite the fact that well-managed woodland biomass production and use is probably as close to carbon-neutral as you can get when factoring in full-lifecycle costs and impacts (especially those from the mining sector).
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