Bitmain Antminer S21 XP Immersion vs Bitcoin Space Heater S19 Edition
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 XP Immersion | Specification | Bitcoin Space Heater S19 Edition |
|---|---|---|
| 300.0 TH/s | Hashrate | 80.0 TH/s |
| 4,050 W | Power Consumption | 2,400 W |
| 13.5 J/TH | Efficiency | 30.0 J/TH |
| 50 dB | Noise Level | 55 dB |
| 14.4 kg | Weight | 18.0 kg |
| 13,819 BTU/hr | BTU Output | 8,189 BTU/hr |
| 44/100 | Home Mining Score | 54/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer S21 XP Immersion
Bitcoin Space Heater S19 Edition
Based on BTC price of $76,858 and current network difficulty as of Apr 27, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21 XP Immersion wins on 4 of 6 factors (efficiency, hashrate, noise level, price-performance). The Bitcoin Space Heater S19 Edition holds the edge in power consumption and home mining score. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
Bitmain Antminer S21 XP Immersion$3.88/day higher profit at current rates.
Best for Home Mining
Bitcoin Space Heater S19 EditionScore: 54/100. 55 dB noise level.
Best for Efficiency
Bitmain Antminer S21 XP Immersion13.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21 XP Immersion or Bitcoin Space Heater S19 Edition more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 XP Immersion is more profitable at $0.97/day compared to $-2.91/day for the Bitcoin Space Heater S19 Edition. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S21 XP Immersion or Bitcoin Space Heater S19 Edition?
The Bitmain Antminer S21 XP Immersion is quieter at 50 dB compared to the Bitcoin Space Heater S19 Edition at 55 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S21 XP Immersion or Bitcoin Space Heater S19 Edition?
The Bitcoin Space Heater S19 Edition scores 54/100 on our Home Mining Score (vs 44/100 for the Bitmain Antminer S21 XP Immersion). 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 S21 XP Immersion and Bitcoin Space Heater S19 Edition?
The Bitmain Antminer S21 XP Immersion runs at 13.5 J/TH while the Bitcoin Space Heater S19 Edition runs at 30.0 J/TH — a difference of 16.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
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