1. Saving the World One Person at a Time
The Lorena Stove
Saving the World One Person at a Time

2. Cooking on an open fire in a hut
What is a Lorena Stove?
Stove to replace open fires
Constructed of adobe (mud, straw, water)
Inexpensive raw materials
Adobe
Large plastic bucket
Empty coffee can, empty soup cans
Pipe for chimney
Cooking on an open fire in a hut
The Lorena Stove

3. Effectiveness of Lorena Stoves
Chart shows infant deaths in Peruvian village
Drop after 1998 when Lorena Stoves were installed
Cases of respiratory disease not available
The Lorena Stove

4. Why Lorena Stoves? Decrease common diseases from smoke
Respiratory infections
Eye infections
Asthma
Increase fuel efficiency
Save work in cutting and gathering wood
Save trees in and around village
Peruvian boy who has suffered from respiratory infections
The Lorena Stove

5. How Do They Work? Wood or grass placed in fuel chamber Fuel ignited
Pot or pan placed on opening on top
Cool air enters through fuel chamber
Smoke exits through chimney
Chimney pipe
Pipe exits roof
Opening for pot or pan
smoke
Adobe Stove
Fuel chamber
The Lorena Stove

6. Selecting the Location
Build Lorena stove in corner of hut farthest from front door
Choose wall so that fuel chamber is on right or left, depending on handedness of cook
Chimney
Opening for pan
Lorena
stove
Door
Walls of hut
The Lorena Stove

7. Constructing the Stove: Making Adobe
Select mud with a moderate amount of clay
► Excessive clay causes stove to crack when heated
► Insufficient clay causes stove to collapse
Mix with water
Add straw
Mixing mud and water
Mixing in straw
The Lorena Stove

8. Constructing the Stove: Preparing the Frame
Place a large plastic bucket in wooden form for fuel chamber
Place empty coffee can for heat chamber
Place chimney pipe
Place pipe between all three items
Fuel chamber
Chimney pipe
Heat chamber
Wooden form
The Lorena Stove

9. Constructing the Stove: Filling Frame with Adobe
Join 3 chambers with pipes or small cans
Add adobe around buckets, cans, and pipes
Prop sides of form to prevent collapse
Allow 48 to 72 hours to dry
Adding adobe to frame
The Lorena Stove

10. Constructing the Stove: Adding a Finish
After adobe dries, remove wooden frame
Remove plastic bucket (other cans and pipes stay in stove)
Apply wet adobe to outer surface; rub until smooth
Photo of completed stove in woman’s hut
The Lorena Stove

11. Final Notes Work under direction of villagers
Train villagers to build stoves
Train villagers to cook on stove
Villagers like stoves for their fuel economy
Lorena stoves save lives
The Lorena Stove