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Last edited: 19 November 2020
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19 deg Orientation No Reflectors
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.
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
Dec 23rd Weather Data
GPS Data
Date: December 23rd, 2009
Elevation 2500 Feet Above Sea Level.
N: 32deg 12.844 min.
W: 110deg 59.945 min.:
Temp VS Time of Day
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[]
Building The Basic Inner Shell
Strengthen the Corner Joints
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"
19 deg Orientation No Reflectors
71 deg Orientation No Reflectors
Oven with Reflectors
Views of Oven