How AI Chips Are Cooled (With Water Hotter Than a Hot Tub) - Video

The water cooling an AI chip is hotter than a hot tub, and that's on purpose.

One AI chip turns up to about a thousand watts into heat. A copper cold plate sits on top, and a warm water-glycol mix carries the heat to a second loop, then up to the roof, into radiators and cooling towers. Some water evaporates there, which is why white clouds float above data centers. In Denmark, data-center heat even warms thousands of homes. And the best-run sites spend only about 9% extra energy on top of the computers themselves.

Sources:
NVIDIA (H100 up to 700 W; GB200 NVL72 liquid cooling: coolant up to 45 °C in, ~55 °C out; ~120 kW per rack)
US CPSC (hot tubs: max 40 °C / 104 °F)
Google Environmental Report 2026 (fleet PUE 1.09) · Uptime Institute 2025 (industry average PUE 1.54)
Meta / Ramboll (Odense data center heat recovery)

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Narration: synthetic voice. Script written and fact-checked by the Aiaecel team.

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