Factorio Boiler to Steam Engine Ratio
The standard steam power ratio is 1 offshore pump to 20 boilers to 40 steam engines.
Blueprints
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Quick answer
- Use 1 offshore pump, 20 boilers, and 40 steam engines for a full early-game steam block.
- One boiler supports two steam engines at normal load.
- Leave room for coal belts, water pipes, and power poles before stamping repeated blocks.