Solar Cooking
Register
mNo edit summary
mNo edit summary
Tag: Source edit
 
(119 intermediate revisions by 11 users not shown)
Line 1: Line 1:
 
{{GoogleTranslateLinks}}
 
{{GoogleTranslateLinks}}
  +
{{Updated|4|23|23}}
  +
[[File:Haines_Solar_Cooker,_11-17-14.png|thumb|400px|The [[Haines 1]] solar panel cooker.]]
  +
[[File:Cocineros_Solares_January_2020_San_Miguel_Del_Valle,_Mexico.jpg|thumb|400px|{{NewFeb20}}Haines 1 cookers displayed after a workshop near Oaxaca, [[Mexico]] in 2020]]
  +
{{PEPtested}}
  +
The Haines 1.0 solar cooker has been Performance Evaluation Process (PEP) tested by Solar Cookers International. [https://www.solarcookers.org/work/research/results Please see the results and the full report here.]
   
  +
Separate from SCI's PEP testing, [[Haines Solar Cookers]] conducted their own non-ISO-based tests. "It boils water 50% faster than any other panel or box cooker," says [[Roger Haines]] of San Diego, {{state|California}}, [[USA]], based on his side-by-side tests comparing the Haines Solar Cooker with seven other commercial panel and box cookers [Update: See [[Haines 2.0]] for an even faster cooker]. According to Roger, the Haines Solar Cooker heated a liter of water to boiling in about an hour, while the next-best cooker took an hour and a half, and some cookers did not reach the boiling point at all. Successive tests were conducted in Del Mar, California, on several calm days in August 2015 with ambient air temperatures around {{Degree|25}}.
   
  +
These solar cookers are available in the [[USA]] through [http://www.hainessolarcookers.com Haines Solar Cookers], but outside the U.S., the design is "open source." In 2013, Roger's Rotary Club distributed 291 solar cookers in Nairobi, [[Kenya]], and found that, on average, solar cooking saved USD 9.00 per month in firewood costs. An additional Rotary project saw a partnership with Washington D.C.-based Solar Household Energy to facilitate the manufacture and sale of Haines Solar Cookers in stores in Nairobi by the Kenya-based NGO, [[NAREWAMA]].
[[File:Haines_Cooker_(Side).jpg|right|300px]]
 
[[File:Haines_Polycarbonate_Sleeve.jpg|thumb|300px|The '''Haines Polycarbonate Sleeve '''eliminates the nylon cooking bag commonly used in solar cooking.]]
 
[[File:Template_for_Haines_Cooker.jpg|thumb|300px|Template for Haines Cooker]]
 
[[File:Drawing_of_Haines_Cooker.jpg|thumb|300px|Assembly diagram for the Haines Cooker]]
 
The [[Haines Solar Cooker]] combines the power of a [[Funnel cooker]] with stability of the traditional [[CooKit]]. It has been designed by Roger Haines of San Diego, {{state|California}}, [[USA]]. The cooker is made in the USA from a mylar-coated bubble insulation material that is sold "off-the shelf" at Lowe's Home Centers in 4-foot by 25-foot rolls.  The material can also be ordered on-line under different brand names.  The material is strong (Roger has driven his car over it without breaking the bubbles) and it is unaffected by boiling water.  The cooker is made from a single 48" by 54" rectangle of bubble material, and requires only three cuts with ordinary scissors for cooker assembly. In testing in November, 2012 in San Diego, this cooker heated an empty pot to a sustained 380 degrees Fahrenheit (193 degrees Celsius) and heated a liter of water from room temperature to boiling in less than an hour.
 
   
  +
The Haines reflector is made of MPET (metalized polyester) film bonded to {{CM|0.3}} of IXPE (cross-linked polyester) foam, with a white PET film backing. According to the manufacturer, the reflective polyester will not oxidize, cannot be scratched off, and has a high melting point. Importantly, the new material is reportedly easy to recycle and is environmentally safe through the whole production and recycling process without pollution. In the U.S., this material is used to make high-end auto windshield sunshades that last more than 10 years.
The two curves of the cooker form an oval funnel.  The base of the cooker should be anchored with rocks or bricks as shown in the photo. <span style="font-family: "Cambria","serif"; font-size: 11pt; mso-ascii-theme-font: major-latin; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: major-latin; mso-bidi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">On windy days, the bottom curve of the cooker can be prevented from being blown upward, by wrapping a circle of string around each side of the curve, and securing the string with the same brick or rock that is used to hold down the back flaps of the cooker.<span style="mso-spacerun: yes;">  </span>So secured, the cooker can withstand quite strong winds.</span> When the sun is high, the cut at the front bottom of the cooker can be overlapped and clipped together with a binder clip to concentrate more sun on the cooking pot.
 
   
  +
===The reflector===
The '''Haines Polycarbonate Sleeve '''eliminates the nylon cooking bag commonly used in solar cooking. This sleeve is a cylinder of stiff polycarbonate or other high-temperature plastic film (about the stiffness of card stock paper), which encloses the bottom and sides of the pot but not the top.  The cylinder can be held together with paper clips, which allows its diameter to be adjusted to fit a variety of cooking pots  The pots must be round, with no handles, and must have a top rim that can rest on the top of the cylinder. The cylinder elevates the pot above the surface of the cooker, allowing the sun's rays to bounce off the reflective surface of the cooker and be absorbed by the bottom of the cooking pot. It also provides an insulating "greenhouse" making a traditional cooking bag unnecessary. Haines's testing indicates that a pot with a glass lid retains more heat than one with a metal lid.
 
  +
The reflector is a {{CM|60}} x {{CM|120}} rectangle of reflective material, with three cuts. Overlapping the cuts as shown produces a flat bottom and a parabolic shape, secured with a single brass fastener inserted through grommet holes. According to the manufacturer, the cooker sits solidly on the ground and withstands strong winds when secured by a string passed through holes in the bottom of the cooker. When the sun is low, the front of the cooker can be tilted down to catch more sun.
{{clr}}
 
  +
==Kirkpatrick Solar Cooker (Kirk-ook) variation==
 
  +
===The cooking sleeve===
[[File:Kirk-Cook_(L-Side)_(480x640).jpg|thumb|275px|The bottom reflector slots into the rear reflector of the Kirk-ook variation]]
 
[[File:Kirk-Cook_(Top)_(480x640).jpg|thumb|275px|Kirk-ook variation]]
+
[[File:2014_Cooking_sleeve.jpg|thumb|250px|Cooking sleeve for the Haines Solar Cooker.]]
  +
Roger Haines designed a permanent "cooking sleeve" to insulate the cooking pot while keeping the lid accessible during cooking. The sleeve is a {{Inch|6}} x {{Inch|48}} rectangle of UV-resistant 0.5 mm clear polycarbonate film, rolled into an adjustable cylinder that fits any round cooking pot with a top rim and no handles. The top rim of the pot rests on the top rim of the cooking sleeve, elevating the pot so that the sun's rays can be reflected onto the bottom of the pot. Roger has found that a glass lid works best because it retains more heat.
[[File:Kirk-Cook_(48x40).jpg|thumb|450px|Kirk-ook construction template]]
 
  +
Mark Evans Kirkpatrick has offered modifications to the Haines Solar Cooker, known as the Kirk-ook. The base reflector is slotted through the rear reflector to provide more stability for the cooker in windy conditions (with less base material extended and more base material supported). The bottom-rear of the cooker can be supported with rocks as shown in the picture. By extending the sides you will create a wave-like formation focusing more rays in the center for higher effectiveness (depending on the angle of the sun). Higher temperatures can be reached using a turkey bag around the pot & lid on windy days (alleviating the effect from high winds, elevating the pot 2" with black rocks) . The plastic film can be coated with UV agents to avoid discoloration and distortion. Alternate transparent plastics are being tested for higher heat resistance (*email suggestions). It is recommended using clear packaging tape to cover each area that is cut (easier when applied prior to cutting out the design) on each side of the cooker. Tape can also be added to other areas prone to wear-and-tear (mainly the latching triangles that replaced the Velcro or binder clips).
 
  +
===The cover===
{{clr}}
 
  +
[[File:Haines_I_Windscreen_alone.jpg|thumb|250px|Haines Windscreen.]]
  +
A circular cover keeps the reflector rigid in the wind and creates "oven-like" conditions around the cooking pot. The cover is made from a {{CM|60}} diameter circle of 0.5 mm UV-resistant polycarbonate film. For increased rigidity, a radius cut is overlapped {{CM|7}} to form a flat cone like a sun hat. The overlap is secured by a string connecting grommet holes in the cover and the reflector. To access the [[pot]], the cover can be moved to the side, as shown in upper left of the photo.
  +
  +
===Shipping and storage===
  +
[[File:Haines_Solar_Cooker_in_storage_bag,_11-17-14.png|thumb|250px|The cooker packed for storage or transport.]]
  +
For shipping and storage, the cooker rolls into a cylinder {{Cm|60}} long and {{Cm|10}} in diameter, weighing{{Kg| 0.5}}.
 
{{Clr}}
  +
  +
=={{HeadingNews}}==
  +
*{{NewJul19}}'''June 2019:''' [[Roger Haines]] conducted cooking tests with the Haines 1 and 2 versus the [[CooKit]] and [[HotPot]] showing that the former two cookers heated water much faster than the latter two during a Southern California summer. [[Media:Cooking tests with the Haines 1 and 2 versus the CooKit and Hot Pot - June 2019.pdf|More information...]]
  +
*{{NewDec16}}'''October 2016: Eagle Scout organizes a build of thirty solar cookers for Haiti''' - For his Eagle Scout project, Russell Desrosier of Fairfax, {{State|Virginia}}, [[USA]], arranged for his Boy Scout troop to build thirty [[Haines Solar Cooker]]s for [[Haiti]]. In the group photo, Russell is the one in the funny hat made from a circular cover. Russell plans to deliver the cookers in January 2017 to recipients in Haiti as part of a project organized by WeCareToShare, Chantal, a medical-dental relief team that has been working in Chantal, Haiti, since the 2010 earthquake. Chantal is a rural rice-farming village approximately 250 km from Port Au Prince on the Tiburon Peninsula. The team obtained a grant from Rotary District 7610 to improve a kitchen at one of the Chantal schools that serves almost 900 students in grades K - 12. The group has been consulting with solar cooking experts [[Mary Buchenic]] and [[Sharon Cousins]] and plans an intensive one-week workshop on solar cooking for the village. They'll be teaching the school's cooks, as well as adults from the village, how to solar cook.
  +
:<gallery widths="287" spacing="small" orientation="square"hideaddbutton="true">
  +
Des6post.jpg
  +
Des15post.jpg
  +
Des22post.jpg
  +
Des23post.jpg
  +
Des24post.jpg
  +
Des25post.jpg
  +
Des26post.jpg
  +
Des28post.jpg
  +
Des29post.jpg
  +
</gallery>
  +
*{{NewMay16}}'''May 2016:''' Haines cookers test successfully at [[Gaga Refugee Camp]].
  +
[[File:Wapi Chuck and Marge 2016.JPG|right|250px]]
  +
*{{NewFeb16}}'''February, 2016''': On February 13, 2016, about 40 young people from San Diego Rotary Clubs spent their Saturday at the University of California, San Diego, making almost 1,000 Water Pasteurization Indicators (WAPIs) for solar cooker projects in East Africa. These simple, reusable devices use a short plastic tube with wax that melts at pasteurization temperature &mdash; about {{Degree|66}} &mdash; to show when water is safe to drink. Because they eliminate the need to heat water to boiling, they permit twice as much water to be pasteurized in a day. Roger Haines made a presentation about Rotary's Solar Cooker Project in Gulu, Uganda. Five hundred of the WAPIs will be given away with the Haines Solar Cookers that will be distributed in March &ndash; April 2016.
  +
[[File:Haines_Cooker_used_by_Camily_Wedende_February_2016.jpg|right|250px]]
  +
*{{NewFeb16}}'''February 2016:''' On February 1, 2016, [[Camily Wedende]] of [[Sun Cookers International]] in Eldoret, [[Kenya]], put on a "train the trainer" program in preparation for the Gulu, Uganda, Rotary Club's distribution of 500 Haines Solar Cookers in Northern [[Uganda]]. Geoffrey Okello of the [[Rotary Club of Gulu]] reported that the group benefited greatly from Mr. Wedende's solar cooking knowledge and experience and above all learned how to cook African [[:Category:Foods|staple foods]] in a solar cooker. To cook ''Posho'' ([[ugali]]), the flour needs to be mixed with cold water and covered, instead of the normal way of first boiling the water before adding the flour, and no stirring is required. Sweet potatoes and cassava need to be cut into small pieces, eggs have to be placed directly on the solar cooker instead of the normal way of boiling in water. The group made and drank tea before cooking the following food items for lunch: sweet potatoes, [[rice]], green vegetables, eggs, and ''posho''.
  +
  +
[[File:Amayo AVF training group photo.jpg|thumb|250px|[[John Amayo]] demonstrating Haines Solar Cookers in Kisumu, Kenya.]]
  +
*[[John Amayo]] demonstrates and sells Haines Solar Cookers in Kisumu, Kenya.
  +
  +
*'''November 2014: Solar Cooker Business Opportunity''' - Roger Haines reports that a prominent Nairobi, [[Kenya]], building supply company is now selling materials to make "open source" Haines Solar Cookers for USD 15.00 per cooker in wholesale quantities of 50 or more. Contact Nishal Sodha at Global Hardware, Ltd., a subsidiary of Elgon-Kenya (http://www.globalhardware.co.ke), telephone: +254 20 2399998, +254 20 2399998/7; cell: +254 786 456 225; Email: nishal@globalhardware.co.ke. Finished cookers are available from [[Faustine Odaba]], director of the Nairobi NGO, [[NAREWAMA]]. Telephone: +254722828317; Email: [mailto:faustine_odaba@yahoo.com faustine_odaba@yahoo.com].
  +
  +
==How to Make a Haines Solar Cooker==
  +
===Making the reflector===
 
[[File:Haines_II_New_Template_001.jpg|thumb|300px|Template for version II.]]
  +
[[File:Haines_Foam_Insualtion_Cooker_folded_open,_2-10-14.jpg|thumb|300px|Partially assembled Haines reflector.]]
  +
# Make a template from a {{CM|60}} x {{CM|120}} rectangle of thin material using a saw to make three cuts; drill six small holes "B" and "C" as shown.
  +
# Lay a large piece of plywood on a table.
  +
# To "guide" the material, attach a length of {{CM|2}} square wood to the plywood, exactly {{CM|60}} from and parallel to the bottom edge, and another piece {{CM|124}} from and parallel to the right edge of the plywood [{{CM|4}} longer than the {{CM|120}} template].
  +
# Unroll {{CM|120}} of material onto the lower right-hand corner of the plywood and line it up with the "guides."
  +
# Lay the template on top of the reflective material and line it up with the "guides." Use a utility knife ("box cutter") along the right side of the template to cut {{CM|120}} of material off the roll and to make the three cuts along the bottom edge. (This will cut grooves into the plywood, but that is OK.)
  +
# Use a black pen to mark the seven holes on the reflective material. Lift the template. Lay a small stiff template on the "fold" lines and FOLD the material, allowing it to unfold.
  +
# Move the material to another table and use a grommet tool to install grommets at the seven marked places.
  +
# Put a brass connector through the hole in the short middle section, pointing up, and spread the two sides apart.
  +
  +
===Making the cover===
  +
[[File:Haines_Solar_Copoker,_windscreen_cutting_tool,_11-17-14.png|thumb|150px|Knife blade attached to windscreen cutting tool.]]
  +
[[File:Haines_Solar_Cooker,_cutting_the_windscreen,_11-17-14.png|thumb|150px|Cutting the circular windscreen.]]
  +
# Cut a flat square or circle of plywood or fiberboard at least {{CM|65}} on a side.
  +
# Put a nail through the exact center, so that the nail protrudes at least {{CM|3}}.
  +
# Take a {{CM|3}} to {{CM|5}} square of wood, about {{CM|35}} long. Screw a box cutter blade to the end as shown. '''WARNING:''' Put tape over the left part of the blade for safety.
  +
# Drill a hole slightly bigger than the nail, approximately {{CM|29.75}} from the blade.
  +
# Take a sheet of {{CM|60}} x {{CM|120}} clear polycarbonate film. Treat as two {{CM|60}} squares and drill a hole at the center of each {{CM|60}} square, the same size as the nail.
  +
# Lay the polycarbonate sheet on top of the flat plywood, with the nail through one of the drilled holes.
  +
# Put the piece of wood with the cutting blade on top of the polycarbonate sheet, with the nail through the hole in the wood and the cutting blade down.
  +
# Press down on the wood so that the blade cuts into the polycarbonate, and rotate 360 degrees to cut a clean circle.
  +
# Use scissors to make a "radius" cut from the edge to the center.
  +
# NOTE: The sheets come with protective film on both sides &mdash; REMOVE this film now.
  +
# Use the grommet tool to attach a grommet {{CM|1.5}} from the radius cut, a second grommet {{CM|6}} from the other side of the radius cut, and a third grommet 180 degrees opposite, on the other side of the circle.
  +
# Tie {{CM|42}} lengths of braided string to the two opposite holes.
  +
  +
===Making the cooking sleeve===
  +
The cooking sleeves come ready-made as {{CM|16}} x {{CM|120}} sheets. However, the protective film on both sides must be removed.
  +
  +
==Audio and video==
  +
*{{NewJan20}}'''August 2019:''' 
  +
  +
::[[File:Cómo armar un Horno Solar Haines I. Tutorial|thumb|none|400 px|Bibiana Hernández, de la comunidad de San Miguel del Valle, Tlacolula, Oax, tiene 2 años usando su horno solar Haines y promoviéndolo en sus comunidades como parte del proyecto piloto impulsado por Solar Household Energy, Inc. En este tutorial, ella nos explica como se arma un horno solar para poder cocinar los alimentos con energía solar.]]
  +
  +
*{{NewJan20}}'''June 2014:'''
  +
  +
::[[File:Prueba con frijoles en un Haines I|none|400 px]]
   
 
==See also==
 
==See also==
  +
*[[Haines Solar Cookers]]
*[[CooKit]]
 
  +
*[[Roger Haines]]
  +
*[[Haines 2.0 Solar Cooker]]
  +
*[[Haines/Copenhagen Solar Cooker]]
  +
*[[Sun Cookers International]]
 
*[[Windshield Shade Solar Cooker]]
 
*[[Windshield Shade Solar Cooker]]
  +
  +
  +
==External links==
  +
*http://www.hainessolarcookers.com
   
 
==Contact==
 
==Contact==
Line 27: Line 110:
 
[[Category:Solar cooker designs]]
 
[[Category:Solar cooker designs]]
 
[[Category:Solar panel cooker designs]]
 
[[Category:Solar panel cooker designs]]
[[Category:Solar panel cooker plans]]
 
 
[[Category:Solar cooker plans]]
 
[[Category:Solar cooker plans]]
 
[[Category:Solar panel cooker plans]]

Latest revision as of 17:29, 23 April 2023

Searchbox
Last edited: 23 April 2023      
Haines Solar Cooker, 11-17-14

The Haines 1 solar panel cooker.

Cocineros Solares January 2020 San Miguel Del Valle, Mexico

Haines 1 cookers displayed after a workshop near Oaxaca, Mexico in 2020

PEP cooker tested label 2, 1-13-21

The Haines 1.0 solar cooker has been Performance Evaluation Process (PEP) tested by Solar Cookers International. Please see the results and the full report here.

Separate from SCI's PEP testing, Haines Solar Cookers conducted their own non-ISO-based tests. "It boils water 50% faster than any other panel or box cooker," says Roger Haines of San Diego, California, USA, based on his side-by-side tests comparing the Haines Solar Cooker with seven other commercial panel and box cookers [Update: See Haines 2.0 for an even faster cooker]. According to Roger, the Haines Solar Cooker heated a liter of water to boiling in about an hour, while the next-best cooker took an hour and a half, and some cookers did not reach the boiling point at all. Successive tests were conducted in Del Mar, California, on several calm days in August 2015 with ambient air temperatures around 25 °C (77 °F).

These solar cookers are available in the USA through Haines Solar Cookers, but outside the U.S., the design is "open source." In 2013, Roger's Rotary Club distributed 291 solar cookers in Nairobi, Kenya, and found that, on average, solar cooking saved USD 9.00 per month in firewood costs. An additional Rotary project saw a partnership with Washington D.C.-based Solar Household Energy to facilitate the manufacture and sale of Haines Solar Cookers in stores in Nairobi by the Kenya-based NGO, NAREWAMA.

The Haines reflector is made of MPET (metalized polyester) film bonded to 0.3 cm (0.1 in) of IXPE (cross-linked polyester) foam, with a white PET film backing. According to the manufacturer, the reflective polyester will not oxidize, cannot be scratched off, and has a high melting point. Importantly, the new material is reportedly easy to recycle and is environmentally safe through the whole production and recycling process without pollution. In the U.S., this material is used to make high-end auto windshield sunshades that last more than 10 years.

The reflector[]

The reflector is a 60 cm (23.6 in) x 120 cm (47.3 in) rectangle of reflective material, with three cuts. Overlapping the cuts as shown produces a flat bottom and a parabolic shape, secured with a single brass fastener inserted through grommet holes. According to the manufacturer, the cooker sits solidly on the ground and withstands strong winds when secured by a string passed through holes in the bottom of the cooker. When the sun is low, the front of the cooker can be tilted down to catch more sun.

The cooking sleeve[]

2014 Cooking sleeve

Cooking sleeve for the Haines Solar Cooker.

Roger Haines designed a permanent "cooking sleeve" to insulate the cooking pot while keeping the lid accessible during cooking. The sleeve is a 15.2 cm (6 in) x 121.8 cm (48 in) rectangle of UV-resistant 0.5 mm clear polycarbonate film, rolled into an adjustable cylinder that fits any round cooking pot with a top rim and no handles. The top rim of the pot rests on the top rim of the cooking sleeve, elevating the pot so that the sun's rays can be reflected onto the bottom of the pot. Roger has found that a glass lid works best because it retains more heat.

The cover[]

Haines I Windscreen alone

Haines Windscreen.

A circular cover keeps the reflector rigid in the wind and creates "oven-like" conditions around the cooking pot. The cover is made from a 60 cm (23.6 in) diameter circle of 0.5 mm UV-resistant polycarbonate film. For increased rigidity, a radius cut is overlapped 7 cm (2.8 in) to form a flat cone like a sun hat. The overlap is secured by a string connecting grommet holes in the cover and the reflector. To access the pot, the cover can be moved to the side, as shown in upper left of the photo.

Shipping and storage[]

Haines Solar Cooker in storage bag, 11-17-14

The cooker packed for storage or transport.

For shipping and storage, the cooker rolls into a cylinder 60 cm (23.6 in) long and 10 cm (3.9 in) in diameter, weighing 0.5 kg (1.1 lbs).

News[]

  • June 2019: Roger Haines conducted cooking tests with the Haines 1 and 2 versus the CooKit and HotPot showing that the former two cookers heated water much faster than the latter two during a Southern California summer. More information...
  • October 2016: Eagle Scout organizes a build of thirty solar cookers for Haiti - For his Eagle Scout project, Russell Desrosier of Fairfax, Virginia, USA, arranged for his Boy Scout troop to build thirty Haines Solar Cookers for Haiti. In the group photo, Russell is the one in the funny hat made from a circular cover. Russell plans to deliver the cookers in January 2017 to recipients in Haiti as part of a project organized by WeCareToShare, Chantal, a medical-dental relief team that has been working in Chantal, Haiti, since the 2010 earthquake. Chantal is a rural rice-farming village approximately 250 km from Port Au Prince on the Tiburon Peninsula. The team obtained a grant from Rotary District 7610 to improve a kitchen at one of the Chantal schools that serves almost 900 students in grades K - 12. The group has been consulting with solar cooking experts Mary Buchenic and Sharon Cousins and plans an intensive one-week workshop on solar cooking for the village. They'll be teaching the school's cooks, as well as adults from the village, how to solar cook.
Wapi Chuck and Marge 2016
  • February, 2016: On February 13, 2016, about 40 young people from San Diego Rotary Clubs spent their Saturday at the University of California, San Diego, making almost 1,000 Water Pasteurization Indicators (WAPIs) for solar cooker projects in East Africa. These simple, reusable devices use a short plastic tube with wax that melts at pasteurization temperature — about 66 °C (151 °F) — to show when water is safe to drink. Because they eliminate the need to heat water to boiling, they permit twice as much water to be pasteurized in a day. Roger Haines made a presentation about Rotary's Solar Cooker Project in Gulu, Uganda. Five hundred of the WAPIs will be given away with the Haines Solar Cookers that will be distributed in March – April 2016.
Haines Cooker used by Camily Wedende February 2016
  • February 2016: On February 1, 2016, Camily Wedende of Sun Cookers International in Eldoret, Kenya, put on a "train the trainer" program in preparation for the Gulu, Uganda, Rotary Club's distribution of 500 Haines Solar Cookers in Northern Uganda. Geoffrey Okello of the Rotary Club of Gulu reported that the group benefited greatly from Mr. Wedende's solar cooking knowledge and experience and above all learned how to cook African staple foods in a solar cooker. To cook Posho (ugali), the flour needs to be mixed with cold water and covered, instead of the normal way of first boiling the water before adding the flour, and no stirring is required. Sweet potatoes and cassava need to be cut into small pieces, eggs have to be placed directly on the solar cooker instead of the normal way of boiling in water. The group made and drank tea before cooking the following food items for lunch: sweet potatoes, rice, green vegetables, eggs, and posho.
Amayo AVF training group photo

John Amayo demonstrating Haines Solar Cookers in Kisumu, Kenya.

  • John Amayo demonstrates and sells Haines Solar Cookers in Kisumu, Kenya.
  • November 2014: Solar Cooker Business Opportunity - Roger Haines reports that a prominent Nairobi, Kenya, building supply company is now selling materials to make "open source" Haines Solar Cookers for USD 15.00 per cooker in wholesale quantities of 50 or more. Contact Nishal Sodha at Global Hardware, Ltd., a subsidiary of Elgon-Kenya (http://www.globalhardware.co.ke), telephone: +254 20 2399998, +254 20 2399998/7; cell: +254 786 456 225; Email: nishal@globalhardware.co.ke. Finished cookers are available from Faustine Odaba, director of the Nairobi NGO, NAREWAMA. Telephone: +254722828317; Email: faustine_odaba@yahoo.com.

How to Make a Haines Solar Cooker[]

Making the reflector[]

Haines II New Template 001

Template for version II.

Haines Foam Insualtion Cooker folded open, 2-10-14

Partially assembled Haines reflector.

  1. Make a template from a 60 cm (23.6 in) x 120 cm (47.3 in) rectangle of thin material using a saw to make three cuts; drill six small holes "B" and "C" as shown.
  2. Lay a large piece of plywood on a table.
  3. To "guide" the material, attach a length of 2 cm (0.8 in) square wood to the plywood, exactly 60 cm (23.6 in) from and parallel to the bottom edge, and another piece 124 cm (48.9 in) from and parallel to the right edge of the plywood [4 cm (1.6 in) longer than the 120 cm (47.3 in) template].
  4. Unroll 120 cm (47.3 in) of material onto the lower right-hand corner of the plywood and line it up with the "guides."
  5. Lay the template on top of the reflective material and line it up with the "guides." Use a utility knife ("box cutter") along the right side of the template to cut 120 cm (47.3 in) of material off the roll and to make the three cuts along the bottom edge. (This will cut grooves into the plywood, but that is OK.)
  6. Use a black pen to mark the seven holes on the reflective material. Lift the template. Lay a small stiff template on the "fold" lines and FOLD the material, allowing it to unfold.
  7. Move the material to another table and use a grommet tool to install grommets at the seven marked places.
  8. Put a brass connector through the hole in the short middle section, pointing up, and spread the two sides apart.

Making the cover[]

Haines Solar Copoker, windscreen cutting tool, 11-17-14

Knife blade attached to windscreen cutting tool.

Haines Solar Cooker, cutting the windscreen, 11-17-14

Cutting the circular windscreen.

  1. Cut a flat square or circle of plywood or fiberboard at least 65 cm (25.6 in) on a side.
  2. Put a nail through the exact center, so that the nail protrudes at least 3 cm (1.2 in).
  3. Take a 3 cm (1.2 in) to 5 cm (2 in) square of wood, about 35 cm (13.8 in) long. Screw a box cutter blade to the end as shown. WARNING: Put tape over the left part of the blade for safety.
  4. Drill a hole slightly bigger than the nail, approximately 29.75 cm (11.7 in) from the blade.
  5. Take a sheet of 60 cm (23.6 in) x 120 cm (47.3 in) clear polycarbonate film. Treat as two 60 cm (23.6 in) squares and drill a hole at the center of each 60 cm (23.6 in) square, the same size as the nail.
  6. Lay the polycarbonate sheet on top of the flat plywood, with the nail through one of the drilled holes.
  7. Put the piece of wood with the cutting blade on top of the polycarbonate sheet, with the nail through the hole in the wood and the cutting blade down.
  8. Press down on the wood so that the blade cuts into the polycarbonate, and rotate 360 degrees to cut a clean circle.
  9. Use scissors to make a "radius" cut from the edge to the center.
  10. NOTE: The sheets come with protective film on both sides — REMOVE this film now.
  11. Use the grommet tool to attach a grommet 1.5 cm (0.6 in) from the radius cut, a second grommet 6 cm (2.4 in) from the other side of the radius cut, and a third grommet 180 degrees opposite, on the other side of the circle.
  12. Tie 42 cm (16.5 in) lengths of braided string to the two opposite holes.

Making the cooking sleeve[]

The cooking sleeves come ready-made as 16 cm (6.3 in) x 120 cm (47.3 in) sheets. However, the protective film on both sides must be removed.

Audio and video[]

  • August 2019: 
Cómo_armar_un_Horno_Solar_Haines_I._Tutorial

Cómo armar un Horno Solar Haines I. Tutorial

Bibiana Hernández, de la comunidad de San Miguel del Valle, Tlacolula, Oax, tiene 2 años usando su horno solar Haines y promoviéndolo en sus comunidades como parte del proyecto piloto impulsado por Solar Household Energy, Inc. En este tutorial, ella nos explica como se arma un horno solar para poder cocinar los alimentos con energía solar.

  • June 2014:

See also[]


External links[]

Contact[]

See Roger Haines.