Bitcoin Space Heater S17 Edition vs Bitmain T21 (190TH)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitcoin Space Heater S17 Edition | Specification | Bitmain T21 (190TH) |
|---|---|---|
| 50.0 TH/s | Taux de hachage | 190.0 TH/s |
| 2,000 W | Consommation électrique | 3,610 W |
| 40.0 J/TH | Efficiency | 19.0 J/TH |
| 55 dB | Niveau de bruit | 76 dB |
| 14.0 kg | Weight | 16.4 kg |
| 6,824 BTU/hr | BTU Output | 12,317 BTU/hr |
| 56/100 | Home Mining Score | 23/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| D-Central | Manufacturer | Bitmain |
Profitability Comparison
Bitcoin Space Heater S17 Edition
Bitmain T21 (190TH)
Based on BTC price of $78,200 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Bitmain T21 (190TH) l'emporte sur 3 des 6 facteurs (efficacité, hashrate, rapport qualité-prix). Where it pulls away hardest is 280% more hashrate (50.0 vs 190.0 TH/s). The Bitcoin Space Heater S17 Edition holds the edge in consommation électrique and score de minage domestique and niveau sonore. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
The Bitcoin Space Heater S17 Edition and Bitmain T21 (190TH) diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain T21 (190TH) 280% more hashrate (50.0 vs 190.0 TH/s)
- Bitcoin Space Heater S17 Edition 45% better power draw (2,000 vs 3,610 W)
- Bitmain T21 (190TH) 53% better efficacité (40.0 vs 19.0 J/TH)
- Bitcoin Space Heater S17 Edition 28% better noise (55.0 vs 76.0 dB)
- Bitcoin Space Heater S17 Edition 15% better weight (14.0 vs 16.4 kg)
- Bitmain T21 (190TH) 80% more heat output (6,824 vs 12,317 BTU/hr)
- Bitcoin Space Heater S17 Edition 143% more score de minage domestique (56.0 vs 23.0)
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.
| Bitcoin Space Heater S17 Edition | Metric | Bitmain T21 (190TH) |
|---|---|---|
| $799 | Upfront cost (MSRP) | $1,700 |
| -$3.00 | Daily net profit | -$1.83 |
| -$1,894 | Net after 1 year | -$2,367 |
| -$2,989 | Net after 2 years | -$3,033 |
| -$4,085 | Net after 3 years | -$3,700 |
| Does not pay back at current rates (negative daily profit) | 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
TieBoth miners produce similar daily profit.
Best for Home Mining
Bitcoin Space Heater S17 EditionScore: 56/100. 55 dB noise level.
Best for Efficiency
Bitmain T21 (190TH)19.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitcoin Space Heater S17 Edition or Bitmain T21 (190TH) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain T21 (190TH) is more profitable at $-1.83/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 Bitcoin Space Heater S17 Edition or Bitmain T21 (190TH)?
The Bitcoin Space Heater S17 Edition is quieter at 55 dB compared to the Bitmain T21 (190TH) at 76 dB. For home mining, lower noise levels make a significant difference in livability.
Bitcoin Space Heater S17 Edition vs Bitmain T21 (190TH): which fits a residential setup better?
The Bitcoin Space Heater S17 Edition scores 56/100 on our Home Mining Score (vs 23/100 for the Bitmain T21 (190TH)). 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 Bitcoin Space Heater S17 Edition and Bitmain T21 (190TH)?
The Bitcoin Space Heater S17 Edition runs at 40.0 J/TH while the Bitmain T21 (190TH) runs at 19.0 J/TH — a difference of 21.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 53% better efficacité (40.0 vs 19.0 J/TH).
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