Bitmain Antminer S21 XP Hyd vs Bitcoin Space Heater S19 Edition
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 XP Hyd | Specification | Bitcoin Space Heater S19 Edition |
|---|---|---|
| 473.0 TH/s | Taux de hachage | 80.0 TH/s |
| 5,676 W | Consommation électrique | 2,400 W |
| 12.0 J/TH | Efficiency | 30.0 J/TH |
| 50 dB | Niveau de bruit | 55 dB |
| 12.3 kg | Weight | 18.0 kg |
| 19,367 BTU/hr | BTU Output | 8,189 BTU/hr |
| 44/100 | Home Mining Score | 54/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer S21 XP Hyd
Bitcoin Space Heater S19 Edition
Based on BTC price of $63,875 and current network difficulty as of Jun 4, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitmain Antminer S21 XP Hyd edges it: 4 of 6 factors go its way (efficacité, hashrate, niveau sonore, rapport qualité-prix). Where it pulls away hardest is 491% more hashrate (473.0 vs 80.0 TH/s). That said, the Bitcoin Space Heater S19 Edition isn't beaten everywhere — it still wins consommation électrique and score de minage domestique. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Here is every spec where the Bitmain Antminer S21 XP Hyd and Bitcoin Space Heater S19 Edition actually differ, with the gap quantified:
- Bitmain Antminer S21 XP Hyd 491% more hashrate (473.0 vs 80.0 TH/s)
- Bitcoin Space Heater S19 Edition 58% better power draw (5,676 vs 2,400 W)
- Bitmain Antminer S21 XP Hyd 60% better efficacité (12.0 vs 30.0 J/TH)
- Bitmain Antminer S21 XP Hyd 9% better noise (50.0 vs 55.0 dB)
- Bitmain Antminer S21 XP Hyd 32% better weight (12.3 vs 18.0 kg)
- Bitmain Antminer S21 XP Hyd 136% more heat output (19,367 vs 8,189 BTU/hr)
- Bitcoin Space Heater S19 Edition 23% more score de minage domestique (44.0 vs 54.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Bitmain Antminer S21 XP Hyd | Metric | Bitcoin Space Heater S19 Edition |
|---|---|---|
| $5,099 | Upfront cost (MSRP) | $1,299 |
| $0.05 | Daily net profit | -$3.45 |
| -$5,082 | Net after 1 year | -$2,558 |
| -$5,065 | Net after 2 years | -$3,816 |
| -$5,049 | Net after 3 years | -$5,075 |
| Takes ~303.1 years to pay back at current rates | Payback period | Does not pay back at current rates (negative daily profit) |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
Bitmain Antminer S21 XP Hyd$3.49/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 Hyd12.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S21 XP Hyd or the Bitcoin Space Heater S19 Edition?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 XP Hyd is more profitable at $0.05/day compared to $-3.45/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.
Is the Bitmain Antminer S21 XP Hyd or the Bitcoin Space Heater S19 Edition better for noise-sensitive spaces?
The Bitmain Antminer S21 XP Hyd 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.
Bitmain Antminer S21 XP Hyd vs Bitcoin Space Heater S19 Edition: which fits a residential setup better?
The Bitcoin Space Heater S19 Edition scores 54/100 on our Home Mining Score (vs 44/100 for the Bitmain Antminer S21 XP Hyd). 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 Hyd and Bitcoin Space Heater S19 Edition?
The Bitmain Antminer S21 XP Hyd runs at 12.0 J/TH while the Bitcoin Space Heater S19 Edition runs at 30.0 J/TH — a difference of 18.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 60% better efficacité (12.0 vs 30.0 J/TH).
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