19/71/64 Degree Orientation Solar Box Oven

Most solar oven manufacturer's don't seem to provide an [Oven Temperature versus Time Of Day] Plot. This is would be a big help to any prospective user of a solar oven. You have probably seen articles on [when] to start cooking and [how long] to cook. You might wonder... how the author of the article got their information. I built a solar oven and decided to do a field test run by recording data of the oven temperature at various random times of the day. This wiki article shows what data I recorded, the time of day, temperature, and cloud effects.
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TEST NOTE: The Oven for this test was empty, except for a black aluminum pot. Not food was placed inside the oven. This was a dry run test.
Degree F (Vertical Axis) versus Time of Day (Horizontal Axis 24 HR Time).
Min Oven Temp: 100 F.
Max Oven Temp: 264F. (UV Index for Dec 23rd was 2 at 2:25PM MT)
Outside Temperature: 41 degree F at 10am to 50 degree F at 3pm.
Wind Speed: 10 to 15 mph gusts.
Skies: Mostly Clear with some very thin high haze clouds which caused the UV index to drop. The UV index for Dec 23rd was 2.
Humidity: approx. 42% (High humidity reduces UV. Best when humidity is below 15%)
Sun Angle From Horizon: approx. 28 degrees
Weather Data Tucson, Dec 23rd, 2009
GPS Data 
Date: December 23rd, 2009
Elevation 2500 Feet Above Sea Level.
N: 32deg 12.844 min.
W: 110deg 59.945 min.:
Note: Dips in temperature are due to clouds blocking sun for short periods of time.
==Oven Construction==
*Corrugated cardboard packing boxes from Home Depot.
*Each section of the oven cut from boxes using a utility knife.
*Inner box and outer box separated by R-Tech Firm Foam commercial insulation. (approx 2 inches)
*Bottom of oven includes 1.5 inch of R-Tech Firm Foam commercial insulation as well.
*Solar Entry: Dual pane glass 3/32" thickness, separated by 1/4".
*Reflectors are simple Aluminum Foil sheets glued to cardboard panels:
==Basic Initial Construction==
 
 
==Raw Data==
Time(24HR)	Temp
1005 	100
1014 	120
1020 	125
1038 	145
1052 	175
1056 	200
1059 	210
1100 	220
1105 	225
1108 	226
1112 	230
1124 	230
1128 	220
1131 	205
1135 	200
1140 	205
1145 	230
1148 	235
1155 	240
1205 	235
1218 	249
1220 	250
1227 	252
1238 	250
1255 	250
1312 	251
1331 	252
1337 	255
1400 	260
1410 	261
1420 	264
1440 	264
1451 	261
1456 	251
1504 	251
1516 	249
1522 	240
1530 	242
==Picture of Completed Box Solar Oven==
Interior Cooking Space Dimensions:
15" X 11.125" X 9.25"
Category:Solar cooker designs
Category:Solar box cooker designs