Noise, heat, security: setting up a trouble-free mining room (pro checklist)

A well-designed mining room avoids 90% of the problems encountered in the field: overheating, power outages, noise, dust, and repeated breakdowns. Here is the Minent.fr guide to properly sizing your room (air/hydro/immersion), reducing noise, ensuring electrical safety, and protecting your investment.

1) Size the airflow (air cooling)

Air miners (S19/S21/L9…) dissipate almost all of the energy consumed as heat. The ventilation system must continuously extract this heat.

Simple rule

• Thermal load (kW) ≈ Power to the wall (kW).
• Minimum airflow : 200–250 m³/h per kW in continuous extraction (base), 300–400 m³/h per kW if hot climate.

Example

3 minors S21+ (≈3.56 kW each) → 10.7 kW total. Aim for ≈ 3,200 to 4,000 m³/h continuous extraction (filtration at the inlet + sleeves/boxes to channel the flow).

Best practices

• Admission filtered (pre-filter + MERV/Hepa depending on dust).
• Flow linear : intake on one side, exhaust on the opposite side (avoid recirculation).
• Slight overpressure on the intake side → less dust entering through leaks.
• To expect temperature/humidity probes and alarms (chip temperatures > 85 °C = alerts).

2) Noise reduction (without sacrificing cooling)

A S21+/L9 can reach 70–80 dB. Objective: to lower perceived noise without suffocating the airflow.

Effective solutions

• Intake/extraction plenums with acoustic foam non-flammable.
• Soundproofed ducts (sheathed) with wide radius bends (reduces the line of sight for sound).
• Air silencers (speakers) at the output.
• Individual enclosures for ASICs: aligned inputs/outputs, no bottlenecks.
• Vibrations : silent-blocs sous racks & pieds anti-vibratiles.

Trick : Each bend/obstacle adds pressure lossesCompensate by slightly increasing the flow rate of the extraction fan(s) to maintain the temperature.

3) Electricity: safety first

The majority of incidents (power outages, overheating, fires) stem from electrical undersizing.

Electrical Checklist

• Dedicated 200–240 V line, caliber and section adapted (according to intensity in A).
• Circuit breaker curve and caliber conform; inter diff dedicated.
• Grounding measured and compliant.
• Cables flexible H07RN-F or equivalent, the shortest possible length.
• surge arrester/ripple (surge protection), inverter at the head if unstable network.
• Avoid low-end power strips and chaining extension cords.

Advice : let 20% margin on the nominal current per circuit to absorb starting peaks and ambient heat.

4) Dust, filters and maintenance

• Pre-filter & main intake filter (weekly visual check, monthly change if dusty environment).
• Maintenance blowing (moderate compressed air): fan blades, grilles, PSU.
• Maintenance plan: weekly (Temperature, errors, rejections) monthly (cleaning), quarterly (tighten connections, check PSU/fans).

5) Hydro & immersion: when to switch to liquid?

Hydro (water cooling)

• Benefits : reduced noiseStable temperatures, increased density.
• Requirements: pump/redundancy, expansion vessel, heat exchanger + external ventilation, leak control.

Immersion (dielectric fluid)

• Benefits : silence, no dust, thermal stability, overclocking possible.
• Requirements: tank + fluid (budget), pump/exchanger, handling & safety (weight).

Ruler : switch to liquid if the noise or the density is your main constraint, or if your climate is hot (> 30 °C regularly).

6) Security & Compliance

• Detectors : smoke/particles, ambient temperature, possibly CO if enclosed space with burners nearby.
• Fire extinguishers : CO₂ or powder suitable for electric use, immediate access.
• Signage : emergency shut-off, electrical hazard, PPE (hearing protection).
• Access : keys/access control, no flammable storage near PSUs/racks.

7) Nuisances & Neighborhood

• Locate the extraction far from neighboring properties (opposite facade, avoid shared walls).
• Noisy maintenance hours during the day (avoid night/weekends).
• Targeted soundproofing: silencer on air outlet, non-flammable acoustic mattresses.
• Measure the dB level at the property line.

8) Monitoring & alertes

• Monitor: effective hashrate (pool vs local), share rejection, chip/PSU temperature, W on the wall.
• Alerts: abnormal temperature, offline, hashrate drop, disconnection.
• Log incidents and interventions to optimize long-term stability.

“Ready to deploy” checklist

• ✅ Calculation of kW load and air flow (or hydro/immersion plan).
• ✅ Power lines dedicated, protections, land, margins 20%.
• ✅ Filtration admission + maintenance plan (weekly/monthly).
• ✅ Noise reduction (plenums, ducts, silencers, anti-vibration devices).
• ✅ Security (detectors, fire extinguishers, signage, access).
• ✅ Monitoring et alertes (T°, hashrate, W, rejets).
• ✅ Emergency shutdown procedure and quarterly testing.

Conclusion

A well-managed mining room is first and foremost a thermal sizing precise, a safe electricity and one acoustic treatment Intelligent. With these foundations, your ASICs run 24/7, longer, with fewer incidents and no disruption. Need a custom plan (air, hydro, immersion)? The Minent.fr team is here to help.

Minent.fr – your French partner for professional mining: room engineering, equipment, logistics and support.