Bitmain Antminer S9i (14Th) vs Bitcoin Space Heater S9 Edition
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S9i (14Th) | Specification | Bitcoin Space Heater S9 Edition |
|---|---|---|
| 14.0 TH/s | Hashrate | 12.0 TH/s |
| 1,320 W | Power Consumption | 1,100 W |
| 94.3 J/TH | Efficiency | 91.7 J/TH |
| — | Noise Level | 50 dB |
| 4,200.0 kg | Weight | 8.0 kg |
| 4,504 BTU/hr | BTU Output | 3,753 BTU/hr |
| 31/100 | Home Mining Score | 59/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer S9i (14Th)
Bitcoin Space Heater S9 Edition
Based on BTC price of $79,032 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitcoin Space Heater S9 Edition, which leads on 4 of 6 weighted factors (efficiency, power consumption, home mining score, noise level). Its biggest concrete edge: 17% better power draw (1,320 vs 1,100 W). That said, the Bitmain Antminer S9i (14Th) isn't beaten everywhere — it still wins hashrate and price-performance. 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 S9i (14Th) and Bitcoin Space Heater S9 Edition actually differ, with the gap quantified:
- Bitmain Antminer S9i (14Th) 17% more hashrate (14.0 vs 12.0 TH/s)
- Bitcoin Space Heater S9 Edition 17% better power draw (1,320 vs 1,100 W)
- Bitcoin Space Heater S9 Edition 3% better efficiency (94.3 vs 91.7 J/TH)
- Bitcoin Space Heater S9 Edition 100% better weight (4,200.0 vs 8.0 kg)
- Bitmain Antminer S9i (14Th) 20% more heat output (4,504 vs 3,753 BTU/hr)
- Bitcoin Space Heater S9 Edition 90% more home mining score (31.0 vs 59.0)
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 S9i (14Th) | Metric | Bitcoin Space Heater S9 Edition |
|---|---|---|
| $65 | Upfront cost (MSRP) | $499 |
| -$2.66 | Daily net profit | -$2.20 |
| -$1,035 | Net after 1 year | -$1,303 |
| -$2,006 | Net after 2 years | -$2,108 |
| -$2,976 | Net after 3 years | -$2,912 |
| 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 S9 EditionScore: 59/100. 50 dB noise level.
Best for Efficiency
Bitcoin Space Heater S9 Edition91.7 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitmain Antminer S9i (14Th) vs Bitcoin Space Heater S9 Edition: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitcoin Space Heater S9 Edition is more profitable at $-2.20/day compared to $-2.66/day for the Bitmain Antminer S9i (14Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S9i (14Th) or Bitcoin Space Heater S9 Edition?
The Bitcoin Space Heater S9 Edition is quieter at 50 dB compared to the Bitmain Antminer S9i (14Th) 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 S9i (14Th) or the Bitcoin Space Heater S9 Edition?
The Bitcoin Space Heater S9 Edition scores 59/100 on our Home Mining Score (vs 31/100 for the Bitmain Antminer S9i (14Th)). 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 S9i (14Th) and Bitcoin Space Heater S9 Edition?
The Bitmain Antminer S9i (14Th) runs at 94.3 J/TH while the Bitcoin Space Heater S9 Edition runs at 91.7 J/TH — a difference of 2.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 3% better efficiency (94.3 vs 91.7 J/TH).
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