Bitmain Antminer S11 (20.5Th) vs Bitcoin Space Heater S19 Edition
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S11 (20.5Th) | Specification | Bitcoin Space Heater S19 Edition |
|---|---|---|
| 20.5 TH/s | Hashrate | 80.0 TH/s |
| 1,530 W | Power Consumption | 2,400 W |
| 74.6 J/TH | Efficiency | 30.0 J/TH |
| — | Noise Level | 55 dB |
| 6,500.0 kg | Weight | 18.0 kg |
| 5,220 BTU/hr | BTU Output | 8,189 BTU/hr |
| 28/100 | Home Mining Score | 54/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer S11 (20.5Th)
Bitcoin Space Heater S19 Edition
Based on BTC price of $79,051 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitcoin Space Heater S19 Edition comes out ahead — it takes 4 of 5 (efficiency, hashrate, home mining score, noise level). The standout gap is 290% more hashrate (20.5 vs 80.0 TH/s) in the Bitcoin Space Heater S19 Edition's favour. The Bitmain Antminer S11 (20.5Th) claws back ground on power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Here is every spec where the Bitmain Antminer S11 (20.5Th) and Bitcoin Space Heater S19 Edition actually differ, with the gap quantified:
- Bitcoin Space Heater S19 Edition 290% more hashrate (20.5 vs 80.0 TH/s)
- Bitmain Antminer S11 (20.5Th) 36% better power draw (1,530 vs 2,400 W)
- Bitcoin Space Heater S19 Edition 60% better efficiency (74.6 vs 30.0 J/TH)
- Bitcoin Space Heater S19 Edition 100% better weight (6,500.0 vs 18.0 kg)
- Bitcoin Space Heater S19 Edition 57% more heat output (5,220 vs 8,189 BTU/hr)
- Bitcoin Space Heater S19 Edition 93% more home mining score (28.0 vs 54.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Bitmain Antminer S11 (20.5Th) | Metric | Bitcoin Space Heater S19 Edition |
|---|---|---|
| — | Upfront cost (MSRP) | $1,299 |
| -$2.93 | Daily net profit | -$2.85 |
| -$1,068 | Net after 1 year | -$2,339 |
| -$2,136 | Net after 2 years | -$3,379 |
| -$3,204 | Net after 3 years | -$4,419 |
| — | 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 S19 EditionScore: 54/100. 55 dB noise level.
Best for Efficiency
Bitcoin Space Heater S19 Edition30.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S11 (20.5Th) or the Bitcoin Space Heater S19 Edition?
At the current BTC price and a $0.10/kWh electricity rate, the Bitcoin Space Heater S19 Edition is more profitable at $-2.85/day compared to $-2.93/day for the Bitmain Antminer S11 (20.5Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S11 (20.5Th) or Bitcoin Space Heater S19 Edition?
The Bitcoin Space Heater S19 Edition is quieter at 55 dB compared to the Bitmain Antminer S11 (20.5Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Bitmain Antminer S11 (20.5Th) or the Bitcoin Space Heater S19 Edition?
The Bitcoin Space Heater S19 Edition scores 54/100 on our Home Mining Score (vs 28/100 for the Bitmain Antminer S11 (20.5Th)). 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 S11 (20.5Th) and Bitcoin Space Heater S19 Edition?
The Bitmain Antminer S11 (20.5Th) runs at 74.6 J/TH while the Bitcoin Space Heater S19 Edition runs at 30.0 J/TH — a difference of 44.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 60% better efficiency (74.6 vs 30.0 J/TH).
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