STEP 7
Growing Into a Farm
A "farm" is just more than one machine, organized. Going from one miner to many is mostly about power, cooling, and not burning your building down.
Think of it like this: One miner is a space heater. Ten miners is a furnace room. The challenge stops being "how do I mine" and becomes "how do I feed this much power in and get this much heat out, safely."
At scale it is all about power in, heat out, and safety. Some farms reuse the heat.
Power at scale
- Ten machines can pull 30 to 35 kilowatts, more than many whole houses. You will likely need a commercial power service and a proper electrical panel built by a licensed pro.
- Many serious miners negotiate a cheaper power rate or set up where power is cheap (hydro, solar, flared gas, off-peak industrial rates).
- Metered power strips (PDUs) let you watch and switch each machine.
Cooling and layout
- Air flow: cold aisle in, hot aisle out, with strong fans. Never let hot exhaust loop back into the intakes.
- Immersion cooling: advanced farms sink miners in special non-conductive liquid. Quieter, cooler, longer machine life, but more cost and complexity.
- Dust filters and regular cleaning keep machines alive.
Two smart money angles
- Hosting / colocation: instead of building a farm, you ship your miners to a facility that has cheap power and runs them for a monthly fee. Less hassle, you give up some margin.
- Reusing the heat: some people pipe miner heat to warm a shop, greenhouse, garage, or water. In a cold place, that heat is not waste, it is value, and it quietly improves the real math.
Do not forget the boring stuff
- Permits and code: big electrical work and some buildings need permits and inspections.
- Insurance and fire safety: smoke and heat detectors, a clean space, and proper breakers. High constant load is a real fire risk done wrong.
- Taxes: mined Bitcoin is usually taxable income where you live. Keep records. Talk to a tax person.
Remember: scaling is a power-and-heat project, not a computer project. Cheap power, strong cooling, and safety are what separate a farm that earns from one that burns.