Bitcoin Space Heater S19 Edition vs MicroBT Whatsminer M61
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitcoin Space Heater S19 Edition | Specification | MicroBT Whatsminer M61 |
|---|---|---|
| 80.0 TH/s | Hashrate | 200.0 TH/s |
| 2,400 W | Power Consumption | 3,980 W |
| 30.0 J/TH | Efficiency | 19.9 J/TH |
| 55 dB | Noise Level | 75 dB |
| 18.0 kg | Weight | 13.5 kg |
| 8,189 BTU/hr | BTU Output | 13,580 BTU/hr |
| 54/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| D-Central | Manufacturer | MicroBT |
Profitability Comparison
Bitcoin Space Heater S19 Edition
MicroBT Whatsminer M61
Based on BTC price of $79,051 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the MicroBT Whatsminer M61, which leads on 3 of 6 weighted factors (efficiency, hashrate, price-performance). The standout gap is 150% more hashrate (80.0 vs 200.0 TH/s) in the MicroBT Whatsminer M61's favour. The Bitcoin Space Heater S19 Edition holds the edge in power consumption and home mining score and noise level. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitcoin Space Heater S19 Edition and MicroBT Whatsminer M61 sit on each measurable spec:
- MicroBT Whatsminer M61 150% more hashrate (80.0 vs 200.0 TH/s)
- Bitcoin Space Heater S19 Edition 40% better power draw (2,400 vs 3,980 W)
- MicroBT Whatsminer M61 34% better efficiency (30.0 vs 19.9 J/TH)
- Bitcoin Space Heater S19 Edition 27% better noise (55.0 vs 75.0 dB)
- MicroBT Whatsminer M61 25% better weight (18.0 vs 13.5 kg)
- MicroBT Whatsminer M61 66% more heat output (8,189 vs 13,580 BTU/hr)
- Bitcoin Space Heater S19 Edition 80% more home mining score (54.0 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 S19 Edition | Metric | MicroBT Whatsminer M61 |
|---|---|---|
| $1,299 | Upfront cost (MSRP) | $2,200 |
| -$2.85 | Daily net profit | -$2.28 |
| -$2,339 | Net after 1 year | -$3,031 |
| -$3,379 | Net after 2 years | -$3,862 |
| -$4,419 | Net after 3 years | -$4,693 |
| 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 S19 EditionScore: 54/100. 55 dB noise level.
Best for Efficiency
MicroBT Whatsminer M6119.9 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitcoin Space Heater S19 Edition or MicroBT Whatsminer M61 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT Whatsminer M61 is more profitable at $-2.28/day compared to $-2.85/day for the Bitcoin Space Heater S19 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 S19 Edition or MicroBT Whatsminer M61?
The Bitcoin Space Heater S19 Edition is quieter at 55 dB compared to the MicroBT Whatsminer M61 at 75 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Bitcoin Space Heater S19 Edition or the MicroBT Whatsminer M61?
The Bitcoin Space Heater S19 Edition scores 54/100 on our Home Mining Score (vs 30/100 for the MicroBT Whatsminer M61). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Bitcoin Space Heater S19 Edition and MicroBT Whatsminer M61 on J/TH?
The Bitcoin Space Heater S19 Edition runs at 30.0 J/TH while the MicroBT Whatsminer M61 runs at 19.9 J/TH — a difference of 10.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 34% better efficiency (30.0 vs 19.9 J/TH).
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