Bitcoin Space Heater S17 Edition vs MicroBT Whatsminer M66
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitcoin Space Heater S17 Edition | Specification | MicroBT Whatsminer M66 |
|---|---|---|
| 50.0 TH/s | Hashrate | 238.0 TH/s |
| 2,000 W | Power Consumption | 4,736 W |
| 40.0 J/TH | Efficiency | 19.9 J/TH |
| 55 dB | Noise Level | — |
| 14.0 kg | Weight | 16.0 kg |
| 6,824 BTU/hr | BTU Output | 16,159 BTU/hr |
| 56/100 | Home Mining Score | 16/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| D-Central | Manufacturer | MicroBT |
Profitability Comparison
Bitcoin Space Heater S17 Edition
MicroBT Whatsminer M66
Based on BTC price of $79,227 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the MicroBT Whatsminer M66 edges it: 3 of 6 factors go its way (efficiency, hashrate, price-performance). Where it pulls away hardest is 376% more hashrate (50.0 vs 238.0 TH/s). That said, the Bitcoin Space Heater S17 Edition isn't beaten everywhere — it still wins power consumption and home mining score and noise level. 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 Bitcoin Space Heater S17 Edition and MicroBT Whatsminer M66 actually differ, with the gap quantified:
- MicroBT Whatsminer M66 376% more hashrate (50.0 vs 238.0 TH/s)
- Bitcoin Space Heater S17 Edition 58% better power draw (2,000 vs 4,736 W)
- MicroBT Whatsminer M66 50% better efficiency (40.0 vs 19.9 J/TH)
- Bitcoin Space Heater S17 Edition 13% better weight (14.0 vs 16.0 kg)
- MicroBT Whatsminer M66 137% more heat output (6,824 vs 16,159 BTU/hr)
- Bitcoin Space Heater S17 Edition 250% more home mining score (56.0 vs 16.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Bitcoin Space Heater S17 Edition | Metric | MicroBT Whatsminer M66 |
|---|---|---|
| $799 | Upfront cost (MSRP) | $3,672 |
| -$2.92 | Daily net profit | -$2.42 |
| -$1,865 | Net after 1 year | -$4,555 |
| -$2,931 | Net after 2 years | -$5,437 |
| -$3,997 | Net after 3 years | -$6,320 |
| 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 S17 EditionScore: 56/100. 55 dB noise level.
Best for Efficiency
MicroBT Whatsminer M6619.9 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitcoin Space Heater S17 Edition or MicroBT Whatsminer M66 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT Whatsminer M66 is more profitable at $-2.42/day compared to $-2.92/day for the Bitcoin Space Heater S17 Edition. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitcoin Space Heater S17 Edition vs MicroBT Whatsminer M66: which runs at a lower noise level?
The Bitcoin Space Heater S17 Edition is quieter at 55 dB compared to the MicroBT Whatsminer M66 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Bitcoin Space Heater S17 Edition vs MicroBT Whatsminer M66: which fits a residential setup better?
The Bitcoin Space Heater S17 Edition scores 56/100 on our Home Mining Score (vs 16/100 for the MicroBT Whatsminer M66). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitcoin Space Heater S17 Edition vs MicroBT Whatsminer M66: how much does the efficiency gap matter?
The Bitcoin Space Heater S17 Edition runs at 40.0 J/TH while the MicroBT Whatsminer M66 runs at 19.9 J/TH — a difference of 20.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 50% better efficiency (40.0 vs 19.9 J/TH).
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