Iranian Qanats - AC with Zero Electricity : Day 9 in Australia

16 Jul 2026 · 1 min

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In this short monologue, the speaker highlights the extraordinary scale and durability of Iran’s qanats—hand‑dug underground water canals that together span a length greater than the distance from Earth to the Moon and back, with some sections over 2,000 years old and still flowing. Entire cities were built atop these canals, allowing cold mountain water to run beneath every house. The speaker explains how traditional wind towers on rooftops draw air through the cool underground water, providing air‑conditioning without any electricity. This ancient, zero‑energy cooling solution is contrasted with modern air‑conditioning in places like Dubai, which consumes roughly 125 kilowatts per household per hour, underscoring the sustainability and ingenuity of the qanat‑wind‑tower system.

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So check this out. There is more underground canal length in Iran than the distance from the Earth to the moon and back. They're called qanats, underground water canals dug by hand. Some are even over 2,000 years old. They're still flowing today. The Iranians built entire cities on top of them. Cold mountain water flowing underneath every house. Wind towers on the roof. Suck air through the cold water below. Air conditioning that runs on zero electricity. Modern engineers can't cool Dubai without burning 125 kilowatts per household per hour. The Iranians solved it 2,000 years ago with dirt and wind.