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{{Updated|7|5|15}}
 
[[File:Haines_Solar_Cooker,_11-17-14.png|thumb|400px|The Haines Solar Cooker]]
 
[[File:Haines_Solar_Cooker_in_production,_11-17-14.png|thumb|400px|The Haines Solar Cooker in production in San Diego, California [[USA]].]]
 
[[File:Haines_Solar_Cooker_with_cover,_11-17-14.png|thumb|400px|The wind screen in the open position.]]
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"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. According to Roger, the H[[Haines Solar Cooker|aines 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 77 F. (25 C.).
   
  +
Haines Solar Cookers are available in the U.S. at www.hainessolarcookers.com, but outside the U.S., the design is "open source". Roger's Rotary Club distributed 291 solar cookers in Nairobi in 2013 and found that, on average, solar cooking saved $9 a month in firewood costs. A new Rotary project, partnering with Washington D.C.-based Solar Household Energy, is facilitating the manufacture and sale of Haines Solar Cookers in stores in Nairobi by the Kenya-based NGO, NAREWAMA,
{{Updated|11|17|14}}
 
[[File:Haines_Solar_Cooker,_11-17-14.png|thumb|300px|The Haines Solar Cooker]]
 
[[File:Haines_Solar_Cooker_with_cover,_11-17-14.png|thumb|300px|The wind screen in the open position.]]
 
[[File:Haines_Solar_Cooker_in_production,_11-17-14.png|thumb|300px|The solar cooker in production]]
 
"Light, compact, durable and inexpensive" is the way Roger Haines of San Diego, {{state|California}}, [[USA]] describes his "open source" [[Haines Solar Cooker]]. For only $15 USD per cooker, entrepreneurs in Nairobi, [[Kenya]], and San Diego, California can buy materials to make Haines Cookers to sell for $36. Roger's Rotary Club distributed 291 solar cookers in Nairobi in 2013 and found that, on average, solar cooking saved $9 a month in firewood costs. So a $36 cooker will pay for itself in 4 months and yield a $9 profit every month thereafter. The buyer can "pay from the profit, not the pocket."
 
   
Instead of cardboard and foil, the Haines reflector is made of MPET (metalized polyester) film bonded to 3mm of IXPE (cross-linked polyester) foam, with a white PET film backing. The reflective polyester will not oxidize, cannot be scratched off, and has a high melting point. Importantly, the new material is 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 Haines reflector is made of MPET (metalized polyester) film bonded to 3mm of IXPE (cross-linked polyester) foam, with a white PET film backing. The reflective polyester will not oxidize, cannot be scratched off, and has a high melting point. Importantly, the new material is 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===
 
The reflector is a 60 cm. x 120 cm. (2' x 4') 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. 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 reflector is a 60 cm. x 120 cm. (2' x 4') 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. 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===
 
===The cooking sleeve===
 
[[File:2014_Cooking_sleeve.jpg|thumb|250px|Cooking sleeve for the Haines Solar Cooker]]
Because disposable plastic "oven bags" are expensive and awkward, Roger designed a permanent "cooking sleeve" to insulate the cooking pot while keeping the lid accessible during cooking. The sleeve is a 6" x 48" rectangle of UV-resistant 0.5 mm. clear polycarbonate film. rolled into a cylinder that is adjustable to fit any round cooking pot that has 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.
+
Because disposable plastic "oven bags" are expensive and awkward, Roger designed a permanent "cooking sleeve" to insulate the cooking pot while keeping the lid accessible during cooking. The sleeve is a 6" x 48" (15 cm. x 120 cm.) rectangle of UV-resistant 0.5 mm. clear polycarbonate film. rolled into a cylinder that is adjustable to fit any round cooking pot that has 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 windscreen===
+
===The cover===
 
[[File:Haines_I_Windscreen_alone.jpg|thumb|250px|Haines Windscreen]]
A circular windscreen keeps the reflector rigid in the wind and creates "oven-like" conditions around the cooking pot. The windscreen is made from a 30 cm. (2-foot) diameter circle of 0.5 mm (.020-inch) UV-resistant polycarbonate film. For increased rigidity, a radius cut is overlapped two inches to form a flat cone like a sun hat. The overlap is secured by a string connecting grommet holes in the windscreen and the reflector.
+
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. (2-foot) diameter circle of 0.5 mm UV-resistant polycarbonate film. For increased rigidity, a radius cut is overlapped 7 cm (3 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.
To access the pot, the windscreen can be moved to the side, as shown in upper left of the photo.
 
  +
[[File:Haines_Solar_Cooker_in_storage_bag,_11-17-14.png|thumb|200px|The cooker packed for storage or transport.]]
 
  +
===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 60 cm (24") long and 10 cm. (4") in diameter, weighing 0.5 kg (1.1 lbs).
 
For shipping and storage, the cooker rolls into a cylinder 60 cm (24") long and 10 cm. (4") in diameter, weighing 0.5 kg (1.1 lbs).
   
 
==Recent news and developments==
 
==Recent news and developments==
*'''November 2014:''' Solar Cooker Business Opportunity. Roger reports that a prominent Nairobi, [[Kenya]] building supply company is now selling materials to make "open source" Haines Solar Cookers for $15 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; E-Mail: nishal@globalhardware.co.ke. Finished cookers and training are available from [[Faustine Odaba]], director of the Nairobi NGO, [[NAREWAMA]]. Telephone: +254722828317; Email: faustine_odaba@yahoo.com. Materials for 500 cookers have been delivered to the Rotary Club of Gulu, [[Uganda]], and plans are being finalized on a partnership between Rotary and a prominent microcredit lender to provide $250,000 in microcredit loans to entrepreneurs to sell Haines "open source" Solar Cookers in Kenya.
+
*'''November 2014:''' Solar Cooker Business Opportunity. Roger reports that a prominent Nairobi, [[Kenya]] building supply company is now selling materials to make "open source" Haines Solar Cookers for $15 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; E-Mail: nishal@globalhardware.co.ke. Finished cookers and training 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==
 
==How to Make a Haines Solar Cooker==
 
===Making the reflector===
 
===Making the reflector===
 
[[File:Haines_II_New_Template_001.jpg|thumb|300px|Template for version II]]
 
[[File:Haines_II_New_Template_001.jpg|thumb|300px|Template for version II]]
Making the Reflector
 
 
[[File:Haines_Foam_Insualtion_Cooker_folded_open,_2-10-14.jpg|thumb|300px|Partially-assembled Haines reflector]]
 
[[File:Haines_Foam_Insualtion_Cooker_folded_open,_2-10-14.jpg|thumb|300px|Partially-assembled Haines reflector]]
 
1. Make a template from a 60 cm. x 120 cm. rectangle of thin material using a saw to make 3 cuts, and drill 6 small holes "B" and "C" as shown.
 
1. Make a template from a 60 cm. x 120 cm. rectangle of thin material using a saw to make 3 cuts, and drill 6 small holes "B" and "C" as shown.
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8. Put a brass connector through the hole in short middle section, pointing up, and spread the two sides apart.
 
8. Put a brass connector through the hole in short middle section, pointing up, and spread the two sides apart.
   
===Making the cooking sleeve===
+
===Making the cover===
 
[[File:Haines_Solar_Copoker,_windscreen_cutting_tool,_11-17-14.png|thumb|150px|Knife blade attached to windscreen cutting tool.]]
[[File:2014_Cooking_sleeve.jpg|thumb|300px|Cooking sleeve for the Haines Solar Cooker]]
 
 
[[File:Haines_Solar_Cooker,_cutting_the_windscreen,_11-17-14.png|thumb|150px|Cutting the circular windscreen.]]
The cooking sleeves come ready-made as 16 cm. x 120 cm. sheets. However, the protective film on both sides must be removed.
 
 
===Making the windscreen===
 
[[File:Haines_I_Windscreen_alone.jpg|thumb|300px|Haines Windscreen]]
 
[[File:Haines_Solar_Copoker,_windscreen_cutting_tool,_11-17-14.png|thumb|300px|Knife blade attached to windscreen cutting tool.]]
 
[[File:Haines_Solar_Cooker,_cutting_the_windscreen,_11-17-14.png|thumb|300px|Cutting the circular windscreen.]]
 
 
1. Cut a flat square or circle of plywood or fiberboard at least 65 cm. on a side.
 
1. Cut a flat square or circle of plywood or fiberboard at least 65 cm. on a side.
 
2. Put a nail through the exact center, so that the nail protrudes at least 3 cm.
 
2. Put a nail through the exact center, so that the nail protrudes at least 3 cm.
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10. NOTE: The sheets come with protective film on both sides. REMOVE this film now.
 
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. from the radius cut, a second grommet 6 cm. from the other side of the radius cut, and a third grommet 180 degrees opposite, on the other side of the circle.
 
11. Use the grommet tool to attach a grommet 1.5 cm. from the radius cut, a second grommet 6 cm. 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. lengths of braided string to the two opposite holes.
+
12. Tie 42 cm. lengths of braided string to the two opposite holes.
   
 
===Making the cooking sleeve===
==Early design prototype==
 
 
The cooking sleeves come ready-made as 16 cm. x 120 cm. sheets. However, the protective film on both sides must be removed.
[[File:Haines_Cooker_(Side).jpg|thumb|300px|Early version of the Haines Solar Cooker designed in 2013.]]
 
The original Haines Solar Cooker was designed in 2013 by Roger Haines of San Diego, California USA. This first Haines cooker was made from reflective bubble insulation sold "off-the shelf" at Lowe's Home Centers in 4-foot by 25-foot rolls. The cooker was made from a single 48" by 48" rectangle of bubble material, and required only three cuts with ordinary scissors for cooker assembly.
 
   
 
==See also==
 
==See also==
 
*[[Roger Haines]]
 
*[[Roger Haines]]
 
*[[Windshield Shade Solar Cooker]]
 
*[[Windshield Shade Solar Cooker]]
  +
  +
==External links==
  +
*{{NewJul15}}http://www.hainessolarcookers.com
   
 
==Contact==
 
==Contact==
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[[Category:Solar cooker plans]]
 
[[Category:Solar cooker plans]]
 
[[Category:Solar panel cooker plans]]
 
[[Category:Solar panel cooker plans]]
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[[Category:Kenya]]
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[[Category:Nairobi Province]]
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[[Category:Manufacturers and vendors]]

Revision as of 17:08, 26 August 2015

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Last edited: 5 July 2015      
Haines Solar Cooker, 11-17-14

The Haines Solar Cooker

Haines Solar Cooker in production, 11-17-14

The Haines Solar Cooker in production in San Diego, California USA.

Haines Solar Cooker with cover, 11-17-14

The wind screen in the open position.

"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. 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 77 F. (25 C.).

Haines Solar Cookers are available in the U.S. at www.hainessolarcookers.com, but outside the U.S., the design is "open source". Roger's Rotary Club distributed 291 solar cookers in Nairobi in 2013 and found that, on average, solar cooking saved $9 a month in firewood costs. A new Rotary project, partnering with Washington D.C.-based Solar Household Energy, is facilitating 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 3mm of IXPE (cross-linked polyester) foam, with a white PET film backing. The reflective polyester will not oxidize, cannot be scratched off, and has a high melting point. Importantly, the new material is 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. x 120 cm. (2' x 4') 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. 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

Because disposable plastic "oven bags" are expensive and awkward, Roger designed a permanent "cooking sleeve" to insulate the cooking pot while keeping the lid accessible during cooking. The sleeve is a 6" x 48" (15 cm. x 120 cm.) rectangle of UV-resistant 0.5 mm. clear polycarbonate film. rolled into a cylinder that is adjustable to fit any round cooking pot that has 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. (2-foot) diameter circle of 0.5 mm UV-resistant polycarbonate film. For increased rigidity, a radius cut is overlapped 7 cm (3 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 (24") long and 10 cm. (4") in diameter, weighing 0.5 kg (1.1 lbs).

Recent news and developments

  • November 2014: Solar Cooker Business Opportunity. Roger reports that a prominent Nairobi, Kenya building supply company is now selling materials to make "open source" Haines Solar Cookers for $15 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; E-Mail: nishal@globalhardware.co.ke. Finished cookers and training 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. x 120 cm. rectangle of thin material using a saw to make 3 cuts, and drill 6 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. square wood to the plywood, exactly 60 cm from and parallel to the bottom edge, and another piece 124 cm. (four cm. longer than the 120 cm. template) from and parallel to the right edge of the plywood. 4. Unroll 120 cm. 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. 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 okay. 6. Use a black pen to MARK the 7 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 7 marked places. 8. Put a brass connector through the hole in 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. on a side. 2. Put a nail through the exact center, so that the nail protrudes at least 3 cm. 3. Take a 3 to 5 cm. square of wood, about 35 cm. 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 approx. 29.75 cm. from the blade. 5. Take a sheet of 60 cm. x 120 cm. clear polycarbonate film. Treat as two 60 cm. squares, and drill a hole at the center of each 60 cm. 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 sheet polycarbonate, 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. from the radius cut, a second grommet 6 cm. 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. lengths of braided string to the two opposite holes.

Making the cooking sleeve

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

See also

External links

Contact

See Roger Haines.