Bitmain Antminer L11 Pro (21Gh)
Professional-Grade Miner
This miner draws 3,612W and produces 75 dB of noise — it is designed for dedicated mining environments, not living spaces. Professional-grade miners deliver the highest hashrate and revenue per unit but require proper infrastructure: a 240V circuit, adequate ventilation or exhaust ducting, and a space where noise is not a concern (garage, basement, warehouse, or outdoor enclosure).
For home miners looking for a quieter alternative, consider our Bitcoin Space Heater builds or explore open-source miners like the Bitaxe that are purpose-built for residential environments.
Profitability Calculator
| Period | Revenue | Electricity Cost | Profit |
|---|---|---|---|
| Daily | $0.00 | $6.07 | $-6.07 |
| Weekly | $0.00 | $42.48 | $-42.47 |
| Monthly | $0.02 | $182.04 | $-182.02 |
| Yearly | $0.25 | $2,214.88 | $-2,214.63 |
Heating offset estimates the value of heat replacing an electric space heater during heating season (~6 months/year in Canada). Actual savings depend on your heating setup and climate.
Where to Buy the Bitmain Antminer L11 Pro (21Gh)
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Full Specifications
| Model | Bitmain Antminer L11 Pro (21Gh) |
| Model Number | Antminer L11 Pro (21Gh) |
| Manufacturer | Bitmain |
| Algorithm | Scrypt |
| Coins Mined | Litecoin (LTC), Dogecoin (DOGE) |
| Hashrate | 21 GH/s |
| Power Consumption | 3,612 W |
| Efficiency | 172000 J/TH |
| Noise Level | 75 dB |
| Dimensions | mm |
| BTU Output | 12324 BTU/hr |
| Equivalent Heater | Equal to a 3,612W space heater |
| Daily Power Cost | $6.07/day |
| Monthly Power Cost | $182.04/mo |
| Circuit Requirement | 240V circuit required |
| Release Date | 2025-09-01 |
| MSRP | $7,999.00 |
| Status | Active |
Home Mining Assessment
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Compare the Bitmain Antminer L11 Pro (21Gh)
Frequently Asked Questions
Is the Bitmain Antminer L11 Pro (21Gh) profitable?
At $0.07/kWh, the Bitmain Antminer L11 Pro (21Gh) currently operates at a daily loss of $6.07. However, profitability can improve with lower electricity rates or rising BTC prices. If used as a space heater, the heating offset may make it economically viable.
Can I mine Bitcoin at home with the Bitmain Antminer L11 Pro (21Gh)?
The Bitmain Antminer L11 Pro (21Gh) has a home mining score of 30/100. With 75 dB noise and 3,612W power draw, it may require a dedicated space like a garage, basement, or outdoor enclosure. Consider noise insulation and proper ventilation.
Can the Bitmain Antminer L11 Pro (21Gh) heat my home?
The Bitmain Antminer L11 Pro (21Gh) outputs approximately 12324 BTU/hr of heat. For reference, a typical space heater produces 5,000-5,500 BTU/hr. All electrical energy consumed by the miner is converted to heat, making it 100% efficient as a heater. D-Central offers Bitcoin Space Heater builds designed specifically for home heating integration.
What power supply does the Bitmain Antminer L11 Pro (21Gh) need?
The Bitmain Antminer L11 Pro (21Gh) draws 3,612W of power. You need a power supply rated for at least 3,973W with appropriate voltage (200-240V AC). D-Central stocks compatible power supplies in our shop. Always use a quality PSU from a reputable manufacturer to protect your investment.