Bitmain Antminer R4
Heater-Class Miner
At 845W, this miner outputs approximately 2883 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 | $0.24 | $1.42 | $-1.18 |
| Weekly | $1.71 | $9.94 | $-8.23 |
| Monthly | $7.31 | $42.59 | $-35.28 |
| Yearly | $88.95 | $518.15 | $-429.20 |
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 R4
D-Central Technologies
CanadaBitcoin Mining Hackers since 2016. Ships from Laval, Quebec.
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United StatesWide selection of new and used ASIC miners. US-based shipping.
Shop NowFull Specifications
| Model | Bitmain Antminer R4 |
| Model Number | Antminer R4 |
| Manufacturer | Bitmain |
| Algorithm | SHA-256 |
| Coins Mined | Bitcoin (BTC) |
| Hashrate | 8.7 TH/s |
| Power Consumption | 845 W |
| Efficiency | 97.1 J/TH |
| Dimensions | 100 x 222 x 515mm |
| Weight | 2.5 |
| BTU Output | 2883 BTU/hr |
| Equivalent Heater | Half a standard space heater (2,883 BTU/hr) |
| Daily Power Cost | $1.42/day |
| Monthly Power Cost | $42.59/mo |
| Circuit Requirement | Standard 120V 15A |
| Release Date | 2017-02-01 |
| Status | Active |
Home Mining Assessment
The Bitmain Antminer R4 is a SHA-256 cryptocurrency miner manufactured by Bitmain. It delivers a hashrate of 8.7 TH/s with a power consumption of 845W, achieving an efficiency of 97.1 J/TH.
Weighs 2500 kg, measures 100 x 222 x 515mm.
With a home mining score of 28/100, this miner is best suited for dedicated mining spaces for residential use. It produces 2883 BTU/h of heat output, making it suitable for supplemental space heating.
At 97.1 J/TH, the Bitmain Antminer R4 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 2883 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 Bitmain Antminer R4 in our comprehensive ASIC miner database.
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Frequently Asked Questions
What are the current mining economics for the Bitmain Antminer R4?
At $0.07/kWh, the Bitmain Antminer R4 currently shows an estimated daily net cost of $1.18 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 Bitmain Antminer R4?
The Bitmain Antminer R4 has a home mining score of 28/100. With 0 dB noise and 845W 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 R4 heat my home?
The Bitmain Antminer R4 outputs approximately 2883 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 R4 need?
The Bitmain Antminer R4 draws 845W of power. You need a power supply rated for at least 930W 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.