Talk:Rocket Lorena Stove

• Best resources?

http://www.rocketstoves.com/

These guys literally wrote the book on Lorena stoves and Rocket Stoves. Check out this sight for everything you ever needed to know about stoves and stove building. http://web.archive.org/web/20131027040242/http://www.aprovecho.org:80/web-content/media/media.html

Indeed, this page is intended as a simple guide which can be noted and used practically. Maybe it can be padded out with some bits from the above site Cgfoz 16:04, 19 June 2007 (PDT)

Im not sure what makes this design either a rocket or a lorena stove. I dont see where the firewood goes into the stove in these designs. Am I missing something?).

> Rocket - This refers to the efficient combustion of fuel (like in a rocket) The key components are the chimney, the dimensions, insulating inner materials and the sealed inner chambers

> Lorena - This wikipedia page states that Lorena stoves originated from South America in the 70's. Their characteristics seem to be the practical design with chimney using appropriate materials. I can't find any info on who or what Lorena is. Anecdotally, it's said that the name is a portmanteau of the Spanish words lodo (mud) and arena (sand).

> Rocket- Lorena - The above wikipedia article suggests that Lorena stoves were originally inefficient. However when I saw the recent R-L-stove in action it was extremely efficient. From what I remember hearing, the hybrid stove takes the practicality/appropriateness/stability of the Lorena stove and adds the efficiency of Rocket stove

The orignal Lorena stove was inefficient in the fact that the *material* it was made out of was extremely dense, and therefore a great thermal battery. The fire burned extremely efficiently, but most of the energy (or enough of it) went into heating up the dense material that the stove was made out of. The primary inefficiency of 3 stone fires is not in the combustion (which still ends up being about 90% efficient), but in the heat transfer from the fire to the actual pot, which is anywhere from 10% to 40% efficient. More info here: Principles for Wood Burning Cookstoves.pdf

> Where does firewood go? - Rocket-Lorena is extremely efficient and does not need a large area for firewood like a 3-stone fire (you can boil water using 2-3 sticks). If you look at the first diagram, you light up the end of some sticks and then place them in the hole in the side. As they burn you push them in. Here is a ofelia sho.cfm photo of a lorena stove which should give you a better idea - Cgfoz 16:04, 19 June 2007 (PDT)

• Who is Lorena? --Chriswaterguy · talk 21:27, 18 March 2007 (PDT)

If the chimney is to be redirected into the ground, any remaining smoke can be absorbed by the ground. If trees, vegetation is planted atop of the soil, all co² can be absorbed by trees. This would nullify emissions.

Another thought is hot water, via a heat exchanger water can be heated, which (in certain cases) may eliminate the need of a boiler for hot water. See the planet mechanics-episode "Heavy Metal House".

Hope these alterations may be added to the stove's design, as they allow increased efficiency and ecological gain.

81.244.206.161 05:37, 18 September 2008 (UTC)Reply

The hot water idea could be good - just need an affordable heat exchanger. (Mightn't be great efficiency, as long as it's simple and affordable, and gets enough heat into the water to make it worth it.)

Re "If the chimney is to be redirected into the ground..." - this sounds like it would be great if there were a cheap way of forcing the smoke into the ground. In practice, it would be a blocked chimney - rather than forcing through the ground, it would flow back into the house. --Chriswaterguy 17:40, 18 September 2008 (UTC)Reply