# Heavy water

Pyanodons fluid · internal name `heavy-water` · first craftable in tier 7 (Production science pack, [tier 7](https://factorio.kalzumeus.com/tier/7.md))
HTML page: https://factorio.kalzumeus.com/fluid/heavy-water/

## Produced by (1 recipes)

### Heavy water (`enriched-water-distillation`)

- 15 s · tier 7
- Ingredients: 400 × [Vacuum](https://factorio.kalzumeus.com/fluid/vacuum.md), 200 × [Enriched water](https://factorio.kalzumeus.com/fluid/enriched-water.md)
- Results: 175 × [Water](https://factorio.kalzumeus.com/fluid/water.md) (125°C), 25 × [Heavy water](https://factorio.kalzumeus.com/fluid/heavy-water.md)
- Made in: Destructive distillation column MK 01, Destructive distillation column MK 02, Destructive distillation column MK 03, Destructive distillation column MK 04
- Unlocked by: [Fusion energy - Stage 1](https://factorio.kalzumeus.com/tech/fusion-mk01.md)

## Used in (1 recipes)

- Deuterium (`deuterium`, tier 7) → [Deuterium](https://factorio.kalzumeus.com/fluid/deuterium.md)