Antminer S21+ vs Bitcoin Space Heater S17 Edition
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21+ | Specification | Bitcoin Space Heater S17 Edition |
|---|---|---|
| 216.0 TH/s | Hashrate | 50.0 TH/s |
| 3,564 W | Power Consumption | 2,000 W |
| 16.5 J/TH | Efficiency | 40.0 J/TH |
| 75 dB | Noise Level | 55 dB |
| 15.0 kg | Weight | 14.0 kg |
| 12,160 BTU/hr | BTU Output | 6,824 BTU/hr |
| 30/100 | Home Mining Score | 56/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Antminer S21+
Bitcoin Space Heater S17 Edition
Based on BTC price of $77,801 and current network difficulty as of Apr 25, 2026. Actual results vary.
Verdict
Both the Antminer S21+ and Bitcoin Space Heater S17 Edition are closely matched across our scoring factors, with neither holding a decisive advantage. Your choice should depend on your specific priorities — review the specs and profitability analysis above.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Bitcoin Space Heater S17 EditionScore: 56/100. 55 dB noise level.
Best for Efficiency
Antminer S21+16.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S21+ or Bitcoin Space Heater S17 Edition more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21+ is more profitable at $-0.76/day compared to $-3.00/day for the Bitcoin Space Heater S17 Edition. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S21+ or Bitcoin Space Heater S17 Edition?
The Bitcoin Space Heater S17 Edition is quieter at 55 dB compared to the Antminer S21+ at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer S21+ or Bitcoin Space Heater S17 Edition?
The Bitcoin Space Heater S17 Edition scores 56/100 on our Home Mining Score (vs 30/100 for the Antminer S21+). 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 Antminer S21+ and Bitcoin Space Heater S17 Edition?
The Antminer S21+ runs at 16.5 J/TH while the Bitcoin Space Heater S17 Edition runs at 40.0 J/TH — a difference of 23.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
Compare Antminer S21+ with...
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