Bitcoin Space Heater S17 Edition vs MicroBT Whatsminer M21S
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitcoin Space Heater S17 Edition | Specification | MicroBT Whatsminer M21S |
|---|---|---|
| 50.0 TH/s | Hashrate | 56.0 TH/s |
| 2,000 W | Power Consumption | 3,360 W |
| 40.0 J/TH | Efficiency | 60.0 J/TH |
| 55 dB | Noise Level | — |
| 14.0 kg | Weight | 12,500.0 kg |
| 6,824 BTU/hr | BTU Output | 11,464 BTU/hr |
| 56/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| D-Central | Manufacturer | MicroBT |
Profitability Comparison
Bitcoin Space Heater S17 Edition
MicroBT Whatsminer M21S
Based on BTC price of $71,060 and current network difficulty as of Mar 25, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitcoin Space Heater S17 Edition wins on 4 of 6 factors (efficiency, power consumption, home mining score, noise level). The MicroBT Whatsminer M21S holds the edge in hashrate and price-performance. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
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
Bitcoin Space Heater S17 Edition40.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitcoin Space Heater S17 Edition or MicroBT Whatsminer M21S more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitcoin Space Heater S17 Edition is more profitable at $-3.26/day compared to $-6.34/day for the MicroBT Whatsminer M21S. 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 MicroBT Whatsminer M21S?
The Bitcoin Space Heater S17 Edition is quieter at 55 dB compared to the MicroBT Whatsminer M21S at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitcoin Space Heater S17 Edition or MicroBT Whatsminer M21S?
The Bitcoin Space Heater S17 Edition scores 56/100 on our Home Mining Score (vs 22/100 for the MicroBT Whatsminer M21S). 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 MicroBT Whatsminer M21S?
The Bitcoin Space Heater S17 Edition runs at 40.0 J/TH while the MicroBT Whatsminer M21S runs at 60.0 J/TH — a difference of 20.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.
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