Heppner gazette-times. (Heppner, Or.) 1925-current, July 26, 1979, Page TWELVE, Image 12

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    TWELVE The Gazette-Times, Heppner, Oregon, Thursday, July 26, 1979
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Dirt cheap9 furnace could save world's firewood fue.
An Oregon State University
professor has developed a
dirt-cheap appliance that
could conserve one half of the
Third World's most common,
but nevertheless, vanishing
fuel firewood.
Ianto Evans, assistant pro
fessor of landscape architec
ture, has designed a new type
of stove out of sand, clay and
water that burns 50 percent
less firewood while emitting
more heat than traditional
methods.
It costs less than $10 to
make.
Evans' stove, carved from a
monolithic block composed of
about 80 percent sand and 20
percent clay, is named
"Lorena," a Spanish acronym
for sand and clay.
The stove was developed by
Evans two years ago when he
was involved in private re
search in Guatemala. Further
refinements were added this
past year at OSU where
Lorena was incorporated as a
project of Evans "Appropri
ate Technology" class.
Explaining the reasons for
Lorena's development, Evans
says "more than 80 percent of
the energy consumed in the
Third World is in the form of
wood burned for cooking.
"From a forestry point of
view, more than 80 percent of
the timber harvested in Third
World is used for firewood.
Worldwide, more than twice
as much timber finds its way
under cooking pots than goes
for furniture, export lumber,
domestic buildings, forest
fires and disease combined,"
Evans said.
"In a lot of poor countries,
25 to 30 percent of household
income is spent for firewood,"
Evans adds, "and in others,
one household member is
employed full-time just
searching for wood. Because
wood is the primary fuel used,
there are increasing circles of
deforestation occuring around
villages and towns in most of
these countries.
The Lorena stove can save
fuel, thus curbing deforesta
tion and the resulting erosion,
because it is very energy
efficient, believes Evans.
This efficiency is due to
three factors : The stove has a
high thermal mass; damper
doors control the gas flow;
and there is a high tempera
ture of combustion because of
Lorena's masonry construct
ion. "The critical mixture of
sand and clay has unique
properties," says Evans. "It
has great structural strength,
a high thermal capacity and it
is very easily worked. You can
make adaptions merely by
wetting it because it is a
mechanical, not a chemical,
bond."
Because of its sand-clay
construction, the stove is
relatively low cost and it can
be built with very little skill or
special tools.
"In Guatemala the stove
has been built for the cost of a
$5 chimney pipe, and in
Indonesia the cost has been as
little as $1.25," says Evans.
"The stove needs no special
tools to build. In fact, we make
a special point of using only a
shovel, a machete and a
kitchen spoon in the construc
tion. These are three tools
even the poorest household
will own."
Lorena's construction peop
erties also make the stove
adaptable to different cul
tures, fuel conditions, eleva
tions and personal needs,
according to its designer.
"Aesthetically, a mud stove
sounds rather squalid, but it
takes whitewash well and we
are experimenting with var
nish and other finishes. In fact
the stove can achieve great
sculptural beauty. The forms
are powerful and massive and
will adapt to surface decora
tive carving easily. Nobody
has yet complained they look
ugly."
There are also health ad
vantages associated with the
stove.
"A great majority of the
world's people still cook over
an open fire. This is obviously halation of smoke," says are the lot of most cooks in this ions, respiratory diseases, hands are common, and small With increase use o e
very wasteful, and there is a Evans. country,' the cooks must ex- emphysema, bronchitis and children suffer horrible scalds stove in poor nations, ivvans
tremendous health hazard "Apart from the steaming pect a shortened life. Inci- eye problems are high among when a boiling pot tilts on an believes people will spend ess
associated with constant in- eyes and running noses which dence of pulmonary infect- women. Burns on arms and insecure open fire." Cont. on page 13
GOOD LOGIC "LITTLE LEAGUEM&"SPUDSM AT THE DISTRICT
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mm mm k ' mm mm mm m m mm mm mw mt mi m m
11 t 1 II 11 II 11 II I 1 II fl II II I , ,,. ,,,, .., .,&X
II II II II It 1 II I I I fl m
'Jr beef top
SIRLOIN
rCf, i STEAKS
ftrrr V usda choice
iniij limning
Collection lb. y LB
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f only fj 1(0 Q WTH EACH
J J $30
I jf V PURCHASE
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BLADE CUT
PORK
STEAKS
ARMOUR'S VARI-BEST
WASHINGTON GROWN
FRYER
DRUMSTICKS
LB.
S1V10KED HAM SHANKS
wasn. grown gg
FRYER THIGHS . lb I .39
USDA Choice Beef mm m.
TENDERLOIN STEAKS lb. 5.49
Lightly Breaded, Quick to fix 4 4 ft
FISH STICKS ... lb 1.19
Great with beans -or
cabbage
89
LINKS... 1 .29
Hormel Little Sizzlers, 12 oz. pkg.
PORK SAUSAGE
Chicken Kiev or Chicken Cordon Bleu
Maple leaf 12 oz. Pkg. O fICt
MAPLE LEAF ENTREES ea. .3
BREADED PERCH FILLETS. lb 1 .59
PRICES EFFECTIVE
JULY 25 THRU
JULY 31, 1979
WE RESERVE THE RIGHT TO LIMIT QUANTITIES
we welcome
food mm?
SHOPPERS
USDA CHOICE
T-B0NE
STEAK
nJ) lb.
tmwBMSmgm PaiuAuM Aim) iniii .1
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UUIflDU I1UI UUUOorBeef
1 qn
LB. I .03
'Armour Star,
SLICED BACON .1.29
Rich's. 1 oz. Pkg.
LUNCH IVIEATS1:'! .49
HAM PATTIES Honne!'.!2oz:.Can. 1 .39
BONELESS
PORK BUTT
ROAST
ARMOUR VARI-BEST
LB.
w - , s , v vws , . - i iimi m.....".i."ih. ji.Puw.wuM
25' OFF LABEL
Concentrated ALL 84 oz 2.09
50 OFF LABEL
VISK Liquid Detergent 121 oz 4.99
10 BONUS SIZE vrxti
COMET Cleanser 23.1 oz 53v
EASY SPRAYER
SPRAY & WASH 22 oz 1.39
ASST0. FLAVORS
DARIG0LD
YOGURT
8oz.
$1100
FOR y
STACK PAK SINGLES
KRAFT
AMERICAN CHEESE
160Z. PKG.
POUND QUARTERS
DARIGOLD
BUTTER
ONE POUND BOX
DARIGOLD
ICE CREAM
BARS
6 pak 03
MOUTHWASH
SCOPE
240Z. $1 79
I
HP11111 I
SZZJ
SHELL
NO-PEST
STRIPS
$199
1
'lave Gm$&f&&y
KLEENEX HUGGIES
II
DAYTIME DIAPERS Count
WESTERN SH0RES...11 gallon
TALL KITCHEN BAGS.
BIGG
CORN KIX CEREAL 9 oz.
$059
kmrn
99
79c
MRS. BUTTERWQRTH
SYRUP 3S0Z. ............
PARKAV TUBS...1 LB. PKG.
SOFT MARGARINE
NALLEY'S...1000 ISLAND, FRENCH, CHUTNEY
SALAD DRESSING
$185
75
$j09
rYWtr. :
1uxh
NBCRITZ CRACKERS,:..; 99
NEW STORE HOURS:
Open Every Day 8 a.m. to 10 p.m.
305 S.W. 1 1th. Ave. (Buttercreek Hwy.), Hermiston
In The All New Sagebrush Plaza 1