Antminer S21+ vs Bitcoin Space Heater S9 Edition
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21+ | Specification | Bitcoin Space Heater S9 Edition |
|---|---|---|
| 216.0 TH/s | Taux de hachage | 12.0 TH/s |
| 3,564 W | Consommation électrique | 1,100 W |
| 16.5 J/TH | Efficiency | 91.7 J/TH |
| 75 dB | Niveau de bruit | 50 dB |
| 15.0 kg | Weight | 8.0 kg |
| 12,160 BTU/hr | BTU Output | 3,753 BTU/hr |
| 30/100 | Home Mining Score | 59/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Antminer S21+
Bitcoin Space Heater S9 Edition
Based on BTC price of $81,357 and current network difficulty as of May 14, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Antminer S21+ l'emporte sur 3 des 6 facteurs (efficacité, hashrate, rapport qualité-prix). Le Bitcoin Space Heater S9 Edition a l'avantage en consommation électrique and score de minage domestique and niveau sonore. Consultez les spécifications détaillées et les calculs de rentabilité ci-dessus pour déterminer quel mineur convient le mieux à votre installation.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Bitcoin Space Heater S9 EditionScore: 59/100. 50 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 S9 Edition more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21+ is more profitable at $-0.21/day compared to $-2.18/day for the Bitcoin Space Heater S9 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 S9 Edition?
The Bitcoin Space Heater S9 Edition is quieter at 50 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 S9 Edition?
The Bitcoin Space Heater S9 Edition scores 59/100 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 S9 Edition?
The Antminer S21+ runs at 16.5 J/TH while the Bitcoin Space Heater S9 Edition runs at 91.7 J/TH — a difference of 75.2 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
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