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 | Hashrate | 550.0 MH/s |
| 800 W | Power Consumption | 950 W |
| 1,587,301.6 J/TH | Efficiency | 1,727,272.7 J/TH |
| 50 dB | Noise Level | — |
| 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 | Algorithm | Scrypt |
| D-Central | Manufacturer | BW |
Profitability Comparison
Bitcoin Space Heater L3 Edition
BW L21
Based on BTC price of $74,658 and current network difficulty as of Mar 16, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitcoin Space Heater L3 Edition wins on 4 of 4 factors (efficiency, power consumption, home mining score, noise level). 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 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
Is the Bitcoin Space Heater L3 Edition or BW L21 more profitable?
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.
Which is quieter, the Bitcoin Space Heater L3 Edition or BW L21?
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.
Which is better for home mining, the Bitcoin Space Heater L3 Edition or 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.
What is the efficiency difference between Bitcoin Space Heater L3 Edition and BW L21?
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.
Compare Bitcoin Space Heater L3 Edition with...
- Bitcoin Space Heater L3 Edition vs Bitcoin Space Heater S9 Edition
- Bitcoin Space Heater L3 Edition vs Antminer Loki Edition (S9)
- Bitcoin Space Heater L3 Edition vs Antminer Pivotal Edition (S9)
- Bitcoin Space Heater L3 Edition vs Antminer Slim Edition (S17)
- Bitcoin Space Heater L3 Edition vs Antminer Slim Edition (S9)
- Bitcoin Space Heater L3 Edition vs Bitaxe Gamma