Bitcoin Space Heater S9 Edition

Hashrate 12.0 TH/s Power 1,100 W Efficiency 91.7 J/TH

Whatsminer M66S

Hashrate 298.0 TH/s Power 5,518 W Efficiency 18.5 J/TH

Bitcoin Space Heater S9 Edition vs Whatsminer M66S

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

Specifications Comparison

Bitcoin Space Heater S9 Edition	Specification	Whatsminer M66S
12.0 TH/s	Hashrate	298.0 TH/s
1,100 W	Power Consumption	5,518 W
91.7 J/TH	Efficiency	18.5 J/TH
50 dB	Noise Level	50 dB
8.0 kg	Weight	13.5 kg
3,753 BTU/hr	BTU Output	18,827 BTU/hr
59/100	Home Mining Score	44/100
—	Release Year	—
SHA-256	Algorithm	SHA-256
D-Central	Manufacturer	MicroBT

Profitability Comparison

Electricity Rate:

$/kWh

Bitcoin Space Heater S9 Edition

Daily Revenue 0.00000556 BTC $0.43

Daily Electricity -$2.64

Daily Profit -$2.21

Monthly -$66.22

Yearly -$805.73

Whatsminer M66S

Daily Revenue 0.00013816 BTC $10.74

Daily Electricity -$13.24

Daily Profit -$2.50

Monthly -$75.06

Yearly -$913.26

Based on BTC price of $77,745 and current network difficulty as of Apr 25, 2026. Actual results vary.

Verdict

Based on our multi-factor analysis, the Whatsminer M66S wins on 3 of 5 factors (efficiency, hashrate, price-performance). The Bitcoin Space Heater S9 Edition holds the edge in power consumption and home mining score. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.

Winner: Whatsminer M66S — wins on 3 of 5 factors

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

Whatsminer M66S

18.5 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Bitcoin Space Heater S9 Edition or Whatsminer M66S more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the Bitcoin Space Heater S9 Edition is more profitable at $-2.21/day compared to $-2.50/day for the Whatsminer M66S. 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 Whatsminer M66S?

Both miners have similar noise levels. Check the specs table above for exact decibel readings.

Which is better for home mining, the Bitcoin Space Heater S9 Edition or Whatsminer M66S?

The Bitcoin Space Heater S9 Edition scores 59/100 on our Home Mining Score (vs 44/100 for the Whatsminer M66S). 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 S9 Edition and Whatsminer M66S?

The Bitcoin Space Heater S9 Edition runs at 91.7 J/TH while the Whatsminer M66S runs at 18.5 J/TH — a difference of 73.2 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.

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