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Bitcoin Space Heater S9 Edition

Bitcoin Space Heater S9 Edition

Hashrate 12.0 TH/s Power 1,100 W Efficiency 91.7 J/TH
VS
Bitdeer SealMiner A2

Bitdeer SealMiner A2

Hashrate 226.0 TH/s Power 3,730 W Efficiency 16.5 J/TH

Bitcoin Space Heater S9 Edition vs Bitdeer SealMiner A2

Side-by-side specs, profitability, and home mining comparison.

Specifications Comparison

Bitcoin Space Heater S9 Edition Specification Bitdeer SealMiner A2
12.0 TH/s Hashrate 226.0 TH/s
1,100 W Power Consumption 3,730 W
91.7 J/TH Efficiency 16.5 J/TH
50 dB Noise Level 75 dB
8.0 kg Weight 15.5 kg
3,753 BTU/hr BTU Output 12,727 BTU/hr
59/100 Home Mining Score 30/100
— Release Year —
SHA-256 Algorithm SHA-256
D-Central Manufacturer Bitdeer

Profitability Comparison

$/kWh

Bitcoin Space Heater S9 Edition

Daily Revenue 0.00000552 BTC $0.44
Daily Electricity -$2.64
Daily Profit -$2.20
Monthly -$66.10
Yearly -$804.23

Bitdeer SealMiner A2

Daily Revenue 0.00010400 BTC $8.22
Daily Electricity -$8.95
Daily Profit -$0.73
Monthly -$21.86
Yearly -$265.98

Based on BTC price of $79,069 and current network difficulty as of May 15, 2026. Actual results vary.

Verdict

Our scoring model gives the nod to the Bitdeer SealMiner A2, which leads on 3 of 6 weighted factors (efficiency, hashrate, price-performance). Its biggest concrete edge: 1783% more hashrate (12.0 vs 226.0 TH/s). That said, the Bitcoin Space Heater S9 Edition isn't beaten everywhere — it still wins power consumption and home mining score and noise level. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.

Winner: Bitdeer SealMiner A2 — wins on 3 of 6 factors

Spec Deltas

The Bitcoin Space Heater S9 Edition and Bitdeer SealMiner A2 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":

  • Bitdeer SealMiner A2 1783% more hashrate (12.0 vs 226.0 TH/s)
  • Bitcoin Space Heater S9 Edition 71% better power draw (1,100 vs 3,730 W)
  • Bitdeer SealMiner A2 82% better efficiency (91.7 vs 16.5 J/TH)
  • Bitcoin Space Heater S9 Edition 33% better noise (50.0 vs 75.0 dB)
  • Bitcoin Space Heater S9 Edition 48% better weight (8.0 vs 15.5 kg)
  • Bitdeer SealMiner A2 239% more heat output (3,753 vs 12,727 BTU/hr)
  • Bitcoin Space Heater S9 Edition 97% more home mining score (59.0 vs 30.0)

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.

Bitcoin Space Heater S9 Edition Metric Bitdeer SealMiner A2
$499 Upfront cost (MSRP) $2,760
-$2.20 Daily net profit -$0.73
-$1,303 Net after 1 year -$3,026
-$2,107 Net after 2 years -$3,292
-$2,912 Net after 3 years -$3,558
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

Tie

Both miners produce similar daily profit.

Best for Home Mining

Bitcoin Space Heater S9 Edition

Score: 59/100. 50 dB noise level.

Best for Efficiency

Bitdeer SealMiner A2

16.5 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Bitcoin Space Heater S9 Edition vs Bitdeer SealMiner A2: which one earns more per day?

At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A2 is more profitable at $-0.73/day compared to $-2.20/day for the Bitcoin Space Heater S9 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 S9 Edition or Bitdeer SealMiner A2?

The Bitcoin Space Heater S9 Edition is quieter at 50 dB compared to the Bitdeer SealMiner A2 at 75 dB. For home mining, lower noise levels make a significant difference in livability.

Which is better for home mining, the Bitcoin Space Heater S9 Edition or Bitdeer SealMiner A2?

The Bitcoin Space Heater S9 Edition scores 59/100 on our Home Mining Score (vs 30/100 for the Bitdeer SealMiner A2). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.

Bitcoin Space Heater S9 Edition vs Bitdeer SealMiner A2: how much does the efficiency gap matter?

The Bitcoin Space Heater S9 Edition runs at 91.7 J/TH while the Bitdeer SealMiner A2 runs at 16.5 J/TH — a difference of 75.2 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 82% better efficiency (91.7 vs 16.5 J/TH).

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