Outdoor, Back Yard, Trees, Walkways, and Large Pools, Tubs, Shower Mexico City architects Ambrosi | Etchegaray installed a 150,000-liter water tank that holds rainwater in this eco-friendly holiday home in Tepoztlán, xxx. The water in the tank is heated solar energy when the water for the showers and pools require heating.  Photo 3 of 9 in 9 Eco-Friendly Homes With Smart, Sustainable Features

9 Eco-Friendly Homes With Smart, Sustainable Features

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The Mexico City-based architects at Ambrosi | Etchegaray installed a 150,000-liter water tank that holds rainwater in this eco-friendly vacation home in Tepoztlán, Morelos. Solar energy warms the water in the tank when heating is required for the pool and shower water.