Natural Cures Not Medicine : Heat Your Room For 15 Cents a Day
â»http://www.naturalcuresnotmedicine.com/2013/11/heat-your-room-for-15-cents-day.html
â»http://www.youtube.com/watch?feature=player_embedded&v=brHqBcZqNzE
This awesome idea works on convection, which is accomplished by the air moving around between the two clay pots.
Je suis dubitative : le chauffage est une pure question dâĂ©nergie : il faut telle quantitĂ© dâĂ©nergie pour augmenter dâun degrĂ© un certain volume dâair. Câest une constante. Donc, le pouvoir calorifique de 4 bougies chauffe-plat...