No, although rocket stoves are another way of achieving high-efficiency burning that I should have mentioned.dibnah wrote:stonehead are you talking about rocket stoves?
Downburning brings air in at the top of the stove, pulling smoke with it and is then directed through the hottest part of the fire. At the same time, more air is brought in from the back of the stove to keep the fuel-air mix high in O2.
The Solid Fuel Technology Insitute did have details on their website, but it's poorly organised and I can't find it again. Dunsley use the technology for their Yorkshire Stove.
Rocket stoves have the advantage of being cheap and easy to build yourself, but are harder to retrofit, need someone watching them to keep the wood pushed in, and aren't necessarily "consumer" friendly.
Something like the Yorkshire Stove on the other hand is not cheap, but can be fitted into most houses with existing chimneys, can be left to burn once fueled up, and are "consumer" friendly.