Transcript Lorena Stoves

The Lorena Stove
Saving the World One Person at a Time
What Is a Lorena Stove?
Replaces open fires in hut
Removes smoke from hut
through chimney
Constructed of inexpensive
raw materials
• Adobe (mud, straw, water)
• Large plastic bucket
• Empty coffee or soup can
• Pipe for chimney
The Lorena Stove
Cooking on an open fire in a hut
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Effect of Lorena Stoves on
Infant Mortality
Infant Deaths In
Paqarimuy, Peru
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Deaths
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Note drop after
2003 when
Lorena Stoves
were installed
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The Lorena Stove
2005
2004
2003
2002
2001
0
2000
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* Cases of respiratory
disease not available
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Why Use Lorena Stoves?
Decrease incidence of common
diseases from smoke inhalation
• Respiratory infections
• Eye infections
• Asthma
Increase fuel efficiency
• Save trees in and around village
• Save work cutting and gathering
wood
The Lorena Stove
Peruvian boy who
has suffered from
respiratory infections
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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
The Lorena Stove
Chimney
pipe
Opening for
pot or pan
smoke
Adobe Stove
Fuel
chamber
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Selecting the Location
Door
Build Lorena stove in Chimney Opening for pan
corner of hut farthest
from front door
Lorena
Choose wall so that
stove
fuel chamber is on right
or left, depending on
Walls of hut
handedness of cook
The Lorena Stove
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Constructing the Stove:
Making Adobe
1. Select mud with a moderate
amount of clay
► Excessive clay causes stove
to crack when heated
► Insufficient clay causes stove
to collapse
Mixing mud and water
2. Mix with water
3. Add straw
The Lorena Stove
Mixing in straw
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Constructing the Stove:
Preparing the Frame
Fuel chamber
1. Place large plastic
bucket near side of
wooden form to be
fuel chamber
2. Place empty coffee
can near other side
of form to be heat
chamber
3. Place chimney pipe
Heat chamber
midway between
other items
Wooden form
The Lorena Stove
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Constructing the Stove:
Filling Frame with Adobe
1. Join 3 chambers with
pipes or small cans
2. Add adobe around
buckets, cans, and pipes
3. Prop sides of form to
prevent collapse
4. Allow 48 to 72 hours to dry
Adding adobe to frame
The Lorena Stove
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Constructing the Stove:
Adding a Finish
1. After adobe dries,
remove wooden
frame
2. Remove plastic
bucket (other cans
and pipes stay in
stove)
3. Apply wet adobe to
outer surface; rub
until smooth
The Lorena Stove
Photo of completed stove
in woman’s hut
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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
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