A lesson recently learned from Third World countries is that Cook Stoves can be up to four times more efficient by simple changes in design. Brick Ovens retain heat. Refrigerators such as SunFrost are more Energy Efficient. A Gas Refrig has pros and cons. A non-electric Clothes Washer or Sewing Machine are available. Lehmans and Jade Mountain specialize in non-electric goods for those who live simply, like the Amish. Hot or Not offers chemical free water treatment.