Bitmain Antminer L11 Pro (21Gh) vs Bitcoin Space Heater L3 Edition
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer L11 Pro (21Gh) | Specification | Bitcoin Space Heater L3 Edition |
|---|---|---|
| 21.0 GH/s | Hashrate | 504.0 MH/s |
| 3,612 W | Power Consumption | 800 W |
| 172,000.0 J/TH | Efficiency | 1,587,301.6 J/TH |
| 75 dB | Noise Level | 50 dB |
| — | Weight | 10.0 kg |
| 12,324 BTU/hr | BTU Output | 2,730 BTU/hr |
| 30/100 | Home Mining Score | 58/100 |
| — | Release Year | — |
| Scrypt | Algorithm | Scrypt |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer L11 Pro (21Gh)
Bitcoin Space Heater L3 Edition
Based on BTC price of $74,178 and current network difficulty as of Mar 16, 2026. Actual results vary.
Verdict
Based on specs, the Bitmain Antminer L11 Pro (21Gh) offers 89% better efficiency at 172,000.0 J/TH compared to the Bitcoin Space Heater L3 Edition at 1,587,301.6 J/TH. This directly impacts daily operating costs and long-term profitability.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Bitcoin Space Heater L3 EditionScore: 58/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer L11 Pro (21Gh)172,000.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer L11 Pro (21Gh) or Bitcoin Space Heater L3 Edition more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitcoin Space Heater L3 Edition is more profitable at $-1.92/day compared to $-8.67/day for the Bitmain Antminer L11 Pro (21Gh). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer L11 Pro (21Gh) or Bitcoin Space Heater L3 Edition?
The Bitcoin Space Heater L3 Edition is quieter at 50 dB compared to the Bitmain Antminer L11 Pro (21Gh) at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer L11 Pro (21Gh) or Bitcoin Space Heater L3 Edition?
The Bitcoin Space Heater L3 Edition scores 58/100 on our Home Mining Score (vs 30/100 for the Bitmain Antminer L11 Pro (21Gh)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
What is the efficiency difference between Bitmain Antminer L11 Pro (21Gh) and Bitcoin Space Heater L3 Edition?
The Bitmain Antminer L11 Pro (21Gh) runs at 172,000.0 J/TH while the Bitcoin Space Heater L3 Edition runs at 1,587,301.6 J/TH — a difference of 1,415,301.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
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