Goldshell KD2
Heater-Class Miner
At 830W, this miner outputs approximately 2832 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 | $0.19 | $1.39 | $-1.20 |
| Weekly | $1.35 | $9.76 | $-8.41 |
| Monthly | $5.79 | $41.83 | $-36.04 |
| Yearly | $70.41 | $508.96 | $-438.55 |
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 Goldshell KD2
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 | Goldshell KD2 |
| Model Number | KD2 |
| Manufacturer | Goldshell |
| Algorithm | Blake2s |
| Coins Mined | Kadena (KDA) |
| Hashrate | 6 TH/s |
| Power Consumption | 830 W |
| Efficiency | 138.3 J/TH |
| Dimensions | 200 x 264 x 290mm |
| Weight | 7300 |
| BTU Output | 2832 BTU/hr |
| Equivalent Heater | Half a standard space heater (2,832 BTU/hr) |
| Daily Power Cost | $1.39/day |
| Monthly Power Cost | $41.83/mo |
| Circuit Requirement | Standard 120V 15A |
| Release Date | 2021-03-01 |
| MSRP | $828.00 |
| Status | Active |
Home Mining Assessment
Related Miners
Goldshell KD6
Goldshell KD Lite
Goldshell KD5
iBeLink K3 mini (3.5TH)
Frequently Asked Questions
Is the Goldshell KD2 profitable?
At $0.07/kWh, the Goldshell KD2 currently operates at a daily loss of $1.20. However, profitability can improve with lower electricity rates or rising BTC prices. If used as a space heater, the heating offset may make it economically viable.
Can I mine Bitcoin at home with the Goldshell KD2?
The Goldshell KD2 has a home mining score of 28/100. With 0 dB noise and 830W power draw, it may require a dedicated space like a garage, basement, or outdoor enclosure. Consider noise insulation and proper ventilation.
Can the Goldshell KD2 heat my home?
The Goldshell KD2 outputs approximately 2832 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 Goldshell KD2 need?
The Goldshell KD2 draws 830W of power. You need a power supply rated for at least 913W 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.