Bitmain Antminer KA3
Professional-Grade Miner
This miner draws 3,287W and produces 80 dB of noise — it is designed for dedicated mining environments, not living spaces. Professional-grade miners deliver the highest hashrate and revenue per unit but require proper infrastructure: a 240V circuit, adequate ventilation or exhaust ducting, and a space where noise is not a concern (garage, basement, warehouse, or outdoor enclosure).
For home miners looking for a quieter alternative, consider our Bitcoin Space Heater builds or explore open-source miners like the Bitaxe that are purpose-built for residential environments.
Heater-Class Miner
At 3,287W, this miner outputs approximately 11215 BTU/hr of heat — equivalent to a standard electric space heater. Every watt consumed by an ASIC miner is converted to heat with 100% efficiency, making it a space heater that also mines Bitcoin.
During heating season, the electricity cost of running this miner replaces your heating bill — and you earn Bitcoin on top. In cold climates like Canada, this dual-purpose approach can dramatically improve mining economics. D-Central offers purpose-built Bitcoin Space Heater editions with noise reduction, duct adapters, and heater-mode firmware for seamless home integration.
Profitability Calculator
| Period | Revenue | Electricity Cost | Profit |
|---|---|---|---|
| Daily | $5.56 | $5.52 | $0.04 |
| Weekly | $38.95 | $38.66 | $0.30 |
| Monthly | $166.95 | $165.66 | $1.28 |
| Yearly | $2,031.20 | $2,015.59 | $15.61 |
Heating offset estimates the value of heat replacing an electric space heater during heating season (~6 months/year in Canada). Actual savings depend on your heating setup and climate.
Where to Buy the Bitmain Antminer KA3
D-Central Technologies is a Bitcoin-only company. For this miner, check out our trusted partner retailers below.
ASIC Miner Market
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Shop NowPartner links may earn D-Central a commission at no extra cost to you. Have you considered Bitcoin mining instead? Explore Bitcoin miners →
Full Specifications
| Model | Bitmain Antminer KA3 |
| Model Number | Antminer KA3 |
| Manufacturer | Bitmain |
| Algorithm | Kadena |
| Coins Mined | Unknown |
| Hashrate | 173 TH/s |
| Power Consumption | 3,287 W |
| Efficiency | 19 J/TH |
| Noise Level | 80 dB |
| Dimensions | 195*290*430mm |
| Weight | 17.7 |
| BTU Output | 11215 BTU/hr |
| Equivalent Heater | Equal to a 3,287W space heater |
| Daily Power Cost | $5.52/day |
| Monthly Power Cost | $165.66/mo |
| Circuit Requirement | 240V circuit required |
| Release Date | 2024-06-01 |
| MSRP | $590.00 |
| Status | Active |
Home Mining Assessment
Common Bitmain Antminer KA3 Error Codes
Known error codes and troubleshooting guides for the Bitmain Antminer KA3. Click any error for step-by-step repair instructions.
Frequently Asked Questions
Is the Bitmain Antminer KA3 profitable?
At $0.07/kWh electricity, the Bitmain Antminer KA3 generates approximately $0.04 in daily profit. Profitability depends on your electricity rate and Bitcoin network conditions. Use the calculator above with your actual electricity rate for personalized results.
Can I mine Bitcoin at home with the Bitmain Antminer KA3?
The Bitmain Antminer KA3 has a home mining score of 29/100. With 80 dB noise and 3,287W power draw, it may require a dedicated space like a garage, basement, or outdoor enclosure. Consider noise insulation and proper ventilation.
Can the Bitmain Antminer KA3 heat my home?
The Bitmain Antminer KA3 outputs approximately 11215 BTU/hr of heat. For reference, a typical space heater produces 5,000-5,500 BTU/hr. All electrical energy consumed by the miner is converted to heat, making it 100% efficient as a heater. D-Central offers Bitcoin Space Heater builds designed specifically for home heating integration.
What power supply does the Bitmain Antminer KA3 need?
The Bitmain Antminer KA3 draws 3,287W of power. You need a power supply rated for at least 3,616W with appropriate voltage (200-240V AC). D-Central stocks compatible power supplies in our shop. Always use a quality PSU from a reputable manufacturer to protect your investment.