Bitcoin Space Heater L3 Edition
Bitcoin Space Heater L3 Edition vs BW L21
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitcoin Space Heater L3 Edition | Specification | BW L21 |
|---|---|---|
| 504.0 MH/s | Taux de hachage | 550.0 MH/s |
| 800 W | Consommation électrique | 950 W |
| 1,587,301.6 J/TH | Efficiency | 1,727,272.7 J/TH |
| 50 dB | Niveau de bruit | — |
| 10.0 kg | Weight | 5,750.0 kg |
| 2,730 BTU/hr | BTU Output | 3,241 BTU/hr |
| 58/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| Scrypt | Algorithme | Scrypt |
| D-Central | Manufacturer | BW |
Profitability Comparison
Bitcoin Space Heater L3 Edition
BW L21
Based on BTC price of $78,237 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitcoin Space Heater L3 Edition comes out ahead — it takes 4 of 4 (efficacité, consommation électrique, score de minage domestique, niveau sonore). Where it pulls away hardest is 16% better power draw (800 vs 950 W). Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Here is every spec where the Bitcoin Space Heater L3 Edition and BW L21 actually differ, with the gap quantified:
- BW L21 9% more hashrate (0.0 vs 0.0 TH/s)
- Bitcoin Space Heater L3 Edition 16% better power draw (800 vs 950 W)
- Bitcoin Space Heater L3 Edition 8% better efficacité (1,587,302 vs 1,727,273 J/TH)
- Bitcoin Space Heater L3 Edition 100% better weight (10.0 vs 5,750.0 kg)
- BW L21 19% more heat output (2,730 vs 3,241 BTU/hr)
- Bitcoin Space Heater L3 Edition 87% more score de minage domestique (58.0 vs 31.0)
Cost & ROI Over Time
Sticker price versus what the miner actually earns back: the table below projects cumulative net profit at a $0.10/kWh electricity rate.
| Bitcoin Space Heater L3 Edition | Metric | BW L21 |
|---|---|---|
| $499 | Upfront cost (MSRP) | — |
| -$1.92 | Daily net profit | -$2.28 |
| -$1,200 | Net after 1 year | -$832 |
| -$1,901 | Net after 2 years | -$1,664 |
| -$2,601 | Net after 3 years | -$2,497 |
| Does not pay back at current rates (negative daily profit) | Payback period | — |
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 L3 EditionScore: 58/100. 50 dB noise level.
Best for Efficiency
Bitcoin Space Heater L3 Edition1,587,301.6 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitcoin Space Heater L3 Edition vs BW L21: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitcoin Space Heater L3 Edition is more profitable at $-1.92/day compared to $-2.28/day for the BW L21. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitcoin Space Heater L3 Edition vs BW L21: which runs at a lower noise level?
The Bitcoin Space Heater L3 Edition is quieter at 50 dB compared to the BW L21 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Bitcoin Space Heater L3 Edition or the BW L21?
The Bitcoin Space Heater L3 Edition scores 58/100 on our Home Mining Score (vs 31/100 for the BW L21). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitcoin Space Heater L3 Edition vs BW L21: how much does the efficiency gap matter?
The Bitcoin Space Heater L3 Edition runs at 1,587,301.6 J/TH while the BW L21 runs at 1,727,272.7 J/TH — a difference of 139,971.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 8% better efficacité (1,587,302 vs 1,727,273 J/TH).
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