Thewindminer K9
Professional-Grade Miner
This miner draws 3,300W and produces 75+ 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 3,300W, this miner outputs approximately 11260 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, miner heat can offset part of the heat a room would otherwise need from another electric heater. The economics depend on your electricity rate, room heat demand, BTC price, network difficulty, and noise constraints.
Profitability Calculator
| Period | Revenue | Electricity Cost | Profit |
|---|---|---|---|
| Daily | $0.28 | $5.54 | $-5.26 |
| Weekly | $1.98 | $38.81 | $-36.83 |
| Monthly | $8.49 | $166.32 | $-157.83 |
| Yearly | $103.24 | $2,023.56 | $-1,920.32 |
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 Thewindminer K9
D-Central Technologies is a Bitcoin-only company. For this miner, check out our trusted partner retailers below.
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Full Specifications
| Model | Thewindminer K9 |
| Model Number | K9 |
| Manufacturer | Thewindminer |
| Algorithm | KHeavyHash |
| Coins Mined | Kaspa (KAS) |
| Hashrate | 10.3 TH/s |
| Power Consumption | 3,300 W |
| Efficiency | 320.4 J/TH |
| Dimensions | 305*185*290mm |
| Weight | 14.8 |
| BTU Output | 11260 BTU/hr |
| Equivalent Heater | Equal to a 3,300W space heater |
| Daily Power Cost | $5.54/day |
| Monthly Power Cost | $166.32/mo |
| Circuit Requirement | 240V circuit required |
| Release Date | 2023-11-01 |
| MSRP | $15,429.40 |
| Status | Active |
Home Mining Assessment
The Thewindminer K9 is a KHeavyHash cryptocurrency miner manufactured by Thewindminer. It delivers a hashrate of 10.3 TH/s with a power consumption of 3300W, achieving an efficiency of 320.4 J/TH.
Weighs 14.8 kg, measures 305*185*290mm.
With a home mining score of 22/100, this miner is best suited for dedicated mining spaces for residential use. It produces 11260 BTU/h of heat output, making it effective for supplemental space heating.
At 320.4 J/TH, the Thewindminer K9 sits in the legacy efficiency tier, so it is most economical run as a space heater or for hobby and learning setups rather than for pure profit.
Its waste heat (around 11260 BTU/h) can be ducted into a room, turning money you would otherwise spend on heating into hashrate.
View detailed specifications, real-time profitability calculations, and comparison data for the Thewindminer K9 in our comprehensive ASIC miner database.
Related Miners
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Iceriver KS3M
IceRiver KS2
Bitmain Antminer KS5 (20Th)
Frequently Asked Questions
What are the current mining economics for the Thewindminer K9?
At $0.07/kWh, the Thewindminer K9 currently shows an estimated daily net cost of $5.26 before pool fees and hardware cost. Lower electricity rates, network changes, BTC price changes, or useful heat recovery can change the result.
Can I mine Bitcoin at home with the Thewindminer K9?
The Thewindminer K9 has a home mining score of 22/100. With 0 dB noise and 3,300W power draw, it may require a dedicated space like a garage, basement, or outdoor enclosure. Consider noise insulation and proper ventilation.
Can the Thewindminer K9 heat my home?
The Thewindminer K9 outputs approximately 11260 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 Thewindminer K9 need?
The Thewindminer K9 draws 3,300W of power. You need a power supply rated for at least 3,630W 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 the miner and wiring.