Cooling and Heating

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How to Make Cooling Systems?

  1. How to Make a Low Cost Cooling System for Bottles and Jar
  2. How to Make a Desert Fridge?
  3. How to Make a Dry Well
  4. Refrigeration for Developing Countries
  5. How to Build an Air Conditioning?

Insulation

  1. Insulation materials
  2. Heat insulation with cardboard
  3. Heat insulation with paper
  4. Heat insulation with wool
  5. Heat insulation with coton

Use of the Sun

  1. Heating with the Sun

Use of Biomass

  1. Heating with Wood
  2. How to Build an Efficient Wood Oven
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