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DIY Night Radiative Condenser
Sky-facing panel sheds heat to the night sky, cools below dew point, and drips condensate into a tank. Works best under clear skies with low humidity.
$40-80
Cost
0.5-3 L/night
Daily Yield
None
Power
Clear dry / desert nights
Best For
Materials List
| Material | Size | Cost | Purpose |
|---|---|---|---|
| Radiative panel (Al / white film) | 1×1 m | $15-30 | Night-sky cooling face |
| Insulation backer | 1×1 m | $8-15 | Keep cold on face |
| Aluminum / copper fins | set | $10-20 | Condensation area |
| Drip channel + tubing | 1–2 m | $3-6 | Route droplets |
| Collection tank | 5–10 L | $4-8 | Overnight storage |
Radiative panel (Al / white film)
Size
1×1 m
Cost
$15-30
Purpose
Night-sky cooling face
Insulation backer
Size
1×1 m
Cost
$8-15
Purpose
Keep cold on face
Aluminum / copper fins
Size
set
Cost
$10-20
Purpose
Condensation area
Drip channel + tubing
Size
1–2 m
Cost
$3-6
Purpose
Route droplets
Collection tank
Size
5–10 L
Cost
$4-8
Purpose
Overnight storage
Performance Specifications
clear Night
1-3 L/night
cloudy Night
0-0.5 L/night
cooling Below Ambient
5-15°C
power Needed
None