Bitcoin Miner Comparison: Find the Perfect Miner for Your Needs
Why Choosing the Right Bitcoin Miner Matters
Not all Bitcoin miners are created equal. The miner you choose determines everything: your hashrate contribution to the network, your electricity costs, your noise levels at home, and whether you can realistically run the machine in a residential setting. A wrong choice means wasted money, frustrated neighbors, and tripped breakers. A right choice means years of productive hashing, supplemental heat for your home, and direct participation in the most important decentralized network on the planet.
At D-Central Technologies, we have been Bitcoin Mining Hackers since 2016. We have personally built, repaired, modified, and deployed every category of miner listed on this page. This comparison is not a spec sheet pulled from manufacturer marketing. It is informed by thousands of hours of hands-on work in our Canadian repair facility, real-world noise measurements in residential environments, and actual power consumption data from our workshop and hosting operations.
Whether you are a complete beginner looking for your first solo miner, a home miner wanting to heat your house while stacking sats, or an experienced operator scaling up with industrial ASICs, this comparison guide will help you find the perfect miner for your specific situation.
Complete Miner Comparison Table
The table below covers every major miner category D-Central carries. Use it as a quick reference, then read the detailed breakdowns below for context on each category.
Open-Source / Bitaxe Family — Solo Mining Devices
D-Central is a pioneer in the Bitaxe ecosystem, involved since the beginning. We created the original Bitaxe Mesh Stand, developed leading heatsink solutions, and stock every Bitaxe variant along with the full Nerd/open-source lineup. These devices are purpose-built for solo mining — each hash is your personal lottery ticket for a full block reward.
| Model | ASIC Chip | Hashrate | Power | Noise | Voltage | Price Range | Best For |
|---|---|---|---|---|---|---|---|
| Nerdminer | ESP32 (no ASIC) | ~50 KH/s | <1 W | Silent | USB 5V | $30–$50 | Education, display piece, lottery ticket |
| NerdNOS | ESP32-S3 (no ASIC) | ~80 KH/s | <1 W | Silent | USB 5V | $30–$50 | Education, NerdMiner OS alternative |
| Bitaxe Supra | 1x BM1366 | ~500 GH/s | ~12 W | Silent | 5V DC | $80–$120 | Solo mining, desk miner, beginner-friendly |
| Bitaxe Ultra | 1x BM1366 | ~500 GH/s | ~12 W | Silent | 5V DC | $80–$120 | Solo mining, silent operation |
| Bitaxe Gamma | 1x BM1370 | ~1.2 TH/s | ~15 W | Silent | 5V DC | $100–$150 | Higher hashrate solo mining |
| Bitaxe GT | 2x BM1370 | ~2.4 TH/s | ~30 W | Quiet | 12V DC | $180–$250 | Serious solo miner, best single-board hashrate |
| Bitaxe Hex | 6x BM1366 | ~3.0 TH/s | ~75 W | Quiet | 12V DC | $300–$450 | Maximum open-source hashrate |
| NerdAxe | 1x BM1397 | ~500 GH/s | ~12 W | Silent | 5V DC | $70–$100 | Open-source alternative to Bitaxe |
| NerdQAxe | 4x BM1366 | ~2.0 TH/s | ~48 W | Quiet | 12V DC | $200–$300 | Quad-chip solo mining |
| NerdQAxe+ | 4x BM1366 | ~2.0 TH/s | ~48 W | Quiet | 12V DC | $200–$320 | Improved NerdQAxe design |
| NerdQAxe++ | 4x BM1370 | ~4.8 TH/s | ~60 W | Quiet | 12V DC | $350–$500 | Highest hashrate open-source miner |
| NerdOctaxe Gamma | 8x BM1370 | ~9.6 TH/s | ~120 W | Moderate | 12V DC | $600–$800 | Maximum open-source power |
Key insight: Every open-source miner above can be used for solo mining — also called lottery mining. You are not splitting rewards with a pool. If your device finds a block, you receive the full block reward (currently 3.125 BTC). The probability is low for any single device, but as the Bitcoiners say: every hash counts. Learn more in our Bitaxe Hub and our Bitaxe vs NerdAxe comparison.
Bitcoin Space Heater Editions — Mine and Heat Your Home
D-Central’s Space Heater Editions are custom-built ASIC miners enclosed in insulated, fan-silenced cases designed for residential use. Every watt of electricity consumed by a miner converts to heat — so why not use that heat to warm your home? These units turn a “cost” (electricity for mining) into a “benefit” (free heating plus Bitcoin rewards).
| Model | Base Miner | Algorithm | Hashrate | Power / Heat Output | Noise | Voltage | Price Range |
|---|---|---|---|---|---|---|---|
| S9 Space Heater | Antminer S9 | SHA-256 | ~11–14 TH/s | ~1,100–1,400 W | Quiet (silenced) | 220V | $400–$600 |
| L3+ Space Heater | Antminer L3+ | Scrypt | ~504 MH/s | ~800 W | Quiet (silenced) | 220V | $350–$550 |
| S17 Space Heater | Antminer S17 | SHA-256 | ~40–56 TH/s | ~1,200–2,000 W | Quiet (silenced) | 220V | $600–$900 |
| S17+ Space Heater | Antminer S17+ | SHA-256 | ~60–73 TH/s | ~2,200–2,900 W | Moderate (silenced) | 220V | $700–$1,000 |
| T17+ Space Heater | Antminer T17+ | SHA-256 | ~55–64 TH/s | ~2,200–2,700 W | Moderate (silenced) | 220V | $600–$900 |
| S19 Space Heater | Antminer S19 | SHA-256 | ~90–95 TH/s | ~3,000–3,250 W | Moderate (silenced) | 220V | $900–$1,400 |
| L7 Pivotal Heater | Antminer L7 | Scrypt | ~3.5 GH/s | ~1,300 W | Quiet (silenced) | Dual-Voltage | $1,000–$1,500 |
Key insight: Space heaters are ideal for Canadian winters and cold climates. A 1,500 W miner produces the same heat as a standard space heater — but also mines Bitcoin. Read our Space Heater Assembly Guide and Electrical Requirements Guide for setup details.
Custom ASIC Configurations — Home Mining Made Practical
D-Central’s custom editions take industrial-grade ASIC miners and hack them for home use. Reduced hashboard counts lower noise and power consumption to residential-friendly levels, while custom firmware allows operation on standard 110V/120V circuits.
| Model | Base Miner | Config | Hashrate | Power | Noise | Voltage | Price Range |
|---|---|---|---|---|---|---|---|
| Antminer Slim Edition | S19 series | 1 hashboard, slim case | ~30–35 TH/s | ~900–1,100 W | Moderate | 110V/120V | $500–$800 |
| Antminer Pivotal Edition | S19/S21 series | 2 hashboards, custom config | ~60–70 TH/s | ~1,800–2,200 W | Moderate | 220V | $700–$1,200 |
| Antminer Loki Edition | S19/S21 series | Custom low-power config | ~30–45 TH/s | ~800–1,200 W | Reduced | 110V/120V | $600–$1,000 |
Key insight: These are real industrial ASICs, modified by D-Central to run in your home without requiring 220V circuits or dedicated ventilation. The Slim DIY Kit and Loki DIY Kit let you build your own custom configuration. Read our 120V Mining Guide for electrical details.
Full ASIC Miners — Maximum Hashrate
For miners with dedicated space, proper ventilation, and 220V+ power circuits, full ASIC miners deliver the highest hashrate per unit. These are the machines that power industrial mining operations worldwide — but with the right setup (shrouds, ducting, firmware), they work in basements, garages, and workshops too.
| Model | Chip | Hashrate | Power | Efficiency | Noise | Voltage | Price Range |
|---|---|---|---|---|---|---|---|
| Antminer S9 | BM1387 | ~14 TH/s | ~1,350 W | ~96 J/TH | Loud (75 dB) | 220V | $50–$150 |
| Antminer S15 | BM1391 | ~28 TH/s | ~1,600 W | ~57 J/TH | Loud (76 dB) | 220V | $100–$250 |
| Antminer S17 | BM1397 | ~56 TH/s | ~2,500 W | ~45 J/TH | Loud (75 dB) | 220V | $200–$500 |
| Antminer S17+ | BM1397 | ~73 TH/s | ~2,900 W | ~40 J/TH | Loud (75 dB) | 220V | $200–$500 |
| Antminer T19 | BM1398 | ~84 TH/s | ~3,150 W | ~37.5 J/TH | Loud (75 dB) | 220V | $300–$600 |
| Antminer S19 | BM1398 | ~95 TH/s | ~3,250 W | ~34 J/TH | Loud (75 dB) | 220V | $400–$800 |
| Antminer S19 Pro | BM1398 | ~110 TH/s | ~3,250 W | ~29.5 J/TH | Loud (75 dB) | 220V | $500–$1,000 |
| Antminer S19j Pro | BM1362 | ~104 TH/s | ~3,050 W | ~29.5 J/TH | Loud (75 dB) | 220V | $500–$1,000 |
| Antminer S19 XP | BM1366 | ~140 TH/s | ~3,010 W | ~21.5 J/TH | Loud (75 dB) | 220V | $1,000–$2,500 |
| Antminer S19k Pro | BM1366 | ~120 TH/s | ~2,760 W | ~23 J/TH | Loud (75 dB) | 220V | $800–$1,800 |
| Antminer S21 | BM1368 | ~200 TH/s | ~3,500 W | ~17.5 J/TH | Loud (75 dB) | 220V | $2,000–$4,000 |
| Antminer S21 Pro | BM1370 | ~234 TH/s | ~3,500 W | ~15 J/TH | Loud (75 dB) | 220V | $3,000–$5,500 |
| Antminer S21 XP | BM1370 | ~270 TH/s | ~3,600 W | ~13.5 J/TH | Loud (75 dB) | 220V | $4,000–$7,000 |
| Whatsminer M30S++ | Samsung 8nm | ~112 TH/s | ~3,472 W | ~31 J/TH | Loud (75 dB) | 220V | $400–$900 |
For a deep dive into the Whatsminer lineup, see our dedicated Whatsminer Hub. For Antminer generation comparisons, read our S19 vs S21 Comparison.
Compare by Use Case: Which Miner Is Right for You?
Solo Mining / Lottery Mining
Solo mining means pointing your miner at a solo mining pool (like CKPool Solo) and mining independently. If your device finds a valid block, you keep the entire block reward — currently 3.125 BTC. The tradeoff: lower hashrate means lower probability per unit of time. But solo mining is fundamentally about sovereignty and decentralization, not guaranteed daily payouts.
Best solo mining picks:
- Entry level (under $50): Nerdminer — silent USB device, educational and fun, nearly zero power cost
- Sweet spot ($80–$150): Bitaxe Supra/Ultra/Gamma — real ASIC chips, silent operation, desk-friendly
- Maximum open-source ($300–$800): Bitaxe Hex, NerdQAxe++, or NerdOctaxe Gamma — highest hashrate while keeping the open-source solo mining spirit
- Serious hashrate ($2,000+): Antminer S21 pointed at CKPool Solo — industrial hashrate, real block-finding probability
Read more: How to Solo Mine Bitcoin | Solo Mining vs Pool Mining
Pool Mining / Consistent Rewards
Pool mining splits your hashrate contribution with thousands of other miners in exchange for regular, proportional payouts. If you want predictable daily sats, pool mining with a full ASIC is the most practical approach.
Best pool mining picks:
- Budget ($400–$800): Antminer S19 or Slim Edition — proven machines with ample hashrate
- Mid-range ($800–$2,500): Antminer S19 XP or S19k Pro — excellent efficiency at reasonable cost
- Maximum ROI ($2,000–$7,000): S21, S21 Pro, or S21 XP — cutting-edge efficiency means lower electricity cost per TH
Read more: Mining Pool Comparison 2026
Home Heating + Mining (Dual-Purpose)
Every watt a miner consumes becomes heat. D-Central’s Space Heater Editions enclose miners in insulated, fan-silenced cases so the heat is directed into your living space while noise stays manageable. In Canadian winters, this is not a gimmick — it is the most cost-effective way to heat a room because the “electricity cost” generates both warmth and Bitcoin.
Best heating + mining picks:
- Small room / apartment: S9 Space Heater Edition (~1,350 W) — equivalent to a standard space heater
- Medium room: S17 Space Heater Edition (~2,000 W) or L7 Pivotal Heater (~1,300 W)
- Large room / workshop: S19 Space Heater Edition (~3,250 W) — serious heat output plus serious hashrate
- DIY build: BitChimney DIY Kit or Space Heater XL DIY Case — build your own custom setup
Read more: Best Miners for Space Heaters | Assembly Guide | Electrical Requirements
Education and Learning
Want to understand Bitcoin mining hands-on without risking significant capital? Open-source miners are the perfect learning platform. They run real SHA-256 hashing on real ASIC chips, connect to real mining pools, and teach you about difficulty, shares, block templates, and the mechanics of proof-of-work.
Best educational picks:
- Absolute beginner: Nerdminer — plug into USB, watch the screen, learn mining basics
- Hands-on learner: Bitaxe DIY Kit — assemble your own miner from components
- ASIC technology deep-dive: Bitaxe Supra — real BM1366 chip, configurable via web interface, open-source firmware
Read more: Getting Started Guide | Bitaxe Hub
Compare by Budget
Your budget determines which tier of mining you can enter. Here is a realistic breakdown of what each budget level gets you.
Under $50 — The Lottery Ticket
At this price point, you are getting an educational device with a near-zero chance of finding a block — but the chance is not literally zero. Nerdminers have found blocks. It happens. These devices cost nothing to run (under 1 watt) and sit on your desk as a conversation piece and learning tool.
$50–$200 — Entry-Level Solo Mining
This is the sweet spot for solo mining enthusiasts. Real ASIC chips, real hashrate, completely silent operation. You can run a Bitaxe 24/7 for about $1/month in electricity.
- NerdAxe ($70–$100)
- Bitaxe Supra ($80–$120)
- Bitaxe Ultra ($80–$120)
- Bitaxe Gamma ($100–$150)
- Bitaxe GT ($180–$250)
$200–$500 — Serious Open-Source or Budget Full ASIC
At this level, you can either maximize your open-source hashrate with multi-chip boards, or enter the full ASIC world with older-generation machines that still mine profitably.
- NerdQAxe / NerdQAxe+ ($200–$320)
- Bitaxe Hex ($300–$450)
- NerdQAxe++ ($350–$500)
- S9 Space Heater Edition ($400–$600)
- Antminer S19 ($400–$800)
$500–$1,500 — Mid-Range Mining
This budget opens up the full range of custom editions and space heaters, plus some new-generation ASICs. You can build a capable home mining setup that heats a room and stacks meaningful sats.
- Antminer Slim Edition ($500–$800)
- Antminer Loki Edition ($600–$1,000)
- NerdOctaxe Gamma ($600–$800)
- Antminer Pivotal Edition ($700–$1,200)
- S19 Space Heater Edition ($900–$1,400)
- Antminer S19 XP ($1,000–$2,500)
$1,500–$3,000 — High-Performance Mining
Current-generation efficiency at scale. These machines deliver the best joules-per-terahash ratios, meaning lower ongoing electricity costs for higher total hashrate.
- Antminer S21 ($2,000–$4,000)
- Antminer S21 Pro ($3,000–$5,500)
$3,000+ — Maximum Hashrate
For miners who want the absolute latest technology with the best efficiency on the market. These are the machines that define the current generation of Bitcoin mining.
- Antminer S21 Pro ($3,000–$5,500)
- Antminer S21 XP ($4,000–$7,000)
Compare by Noise Level
Noise is the number one concern for home miners. Here is an honest breakdown based on our direct measurements and experience.
| Noise Level | Decibels | Description | Miners |
|---|---|---|---|
| Silent | <25 dB | Completely inaudible in a quiet room. Can sit on your desk next to you while you work. | Nerdminer, NerdNOS, Bitaxe Supra/Ultra/Gamma, NerdAxe |
| Quiet | 25–40 dB | Comparable to a desktop computer or quiet fan. Noticeable in a silent room but not disruptive. | Bitaxe GT, Bitaxe Hex, NerdQAxe/+/++, S9 Space Heater, L3+ Space Heater, L7 Pivotal Heater |
| Moderate | 40–55 dB | Like a conversation or a window AC unit. Fine for a separate room, basement, or garage. | NerdOctaxe Gamma, S17/S17+ Space Heater, S19 Space Heater, Antminer Slim/Pivotal/Loki Editions (with shrouds) |
| Loud | 70–80 dB | Industrial. Requires a dedicated room, garage, or basement with sound insulation. Not livable without shrouds and ducting. | All full ASIC miners (S9, S17, S19, S21 series, Whatsminer M30S++) |
Pro tip: Loud full ASICs can be tamed with D-Central shrouds, custom ducting, and silencers. We also sell 120mm to 140mm adapters that allow use of larger, quieter aftermarket fans. See our Noise Reduction Guide for detailed strategies.
Compare by Power Consumption
Electricity is the single largest ongoing cost of Bitcoin mining. Understanding power consumption determines whether a miner is profitable in your location and whether your home electrical system can handle it.
| Power Tier | Wattage | Monthly Cost* | Circuit Requirement | Miners |
|---|---|---|---|---|
| Negligible | <5 W | <$1 | USB port | Nerdminer, NerdNOS |
| Minimal | 5–30 W | $1–$3 | Any outlet (5V adapter) | Bitaxe Supra/Ultra/Gamma, NerdAxe |
| Low | 30–120 W | $3–$12 | Any outlet (12V adapter) | Bitaxe GT, Bitaxe Hex, NerdQAxe series, NerdOctaxe Gamma |
| Moderate | 800–1,400 W | $80–$140 | Dedicated 15A/120V circuit or 220V | S9 Space Heater, L3+ Space Heater, Slim/Loki Editions |
| High | 1,400–2,500 W | $140–$250 | Dedicated 20A/120V or 220V circuit | S17 Space Heater, Pivotal Edition, older full ASICs |
| Industrial | 2,500–3,600 W | $250–$360 | Dedicated 220V/30A circuit | S19 series, S21 series, Whatsminer M30S++ |
*Monthly cost estimated at $0.10/kWh (Canadian average). Your actual cost depends on your provincial electricity rate. Use our Mining Calculator for precise estimates.
Important: Power consumption directly correlates to heat output. A 1,400 W miner produces 1,400 watts of heat — identical to a standard space heater. This is why dual-purpose mining + heating makes so much sense in cold climates. Read our 120V Mining Guide and Electrical Requirements Guide for safe wiring practices.
How to Choose: The Decision Matrix
Still not sure which miner is right for you? Answer these five questions:
1. What is your primary goal?
- Learn about mining → Nerdminer or Bitaxe DIY Kit
- Solo mine for a chance at a full block → Bitaxe family or NerdQAxe series
- Earn consistent daily sats → Full ASIC on a mining pool
- Heat your home while mining → Space Heater Editions
- Maximize hashrate per dollar → Latest-gen S21 series
2. Where will the miner operate?
- On your desk → Bitaxe, NerdAxe, Nerdminer (silent operation)
- Living room / bedroom → Space Heater Editions (noise-managed)
- Basement / garage → Custom Editions (Slim, Pivotal, Loki) or full ASICs with shrouds
- Dedicated mining room → Full ASICs at stock settings
- Hosted facility → Full ASICs at maximum settings via D-Central Hosting
3. What is your electrical situation?
- Standard outlets only (110V/120V, 15A) → Bitaxe family, Nerd family, Slim Edition, Loki Edition
- Dedicated 20A/120V circuit → Slim Edition, Loki Edition, some Space Heaters
- 220V/240V available → Any miner, including full ASICs
- Solar / off-grid → Bitaxe (low consumption) or custom ASIC with battery + inverter
4. How much noise can you tolerate?
- Zero noise (same room as you) → Bitaxe Supra/Ultra/Gamma, NerdAxe, Nerdminer
- Background hum (like a computer) → Bitaxe GT/Hex, NerdQAxe series
- Noticeable but livable (like AC) → Space Heater Editions, Custom Editions with shrouds
- Separate room / does not matter → Full ASICs
5. What is your budget?
- Under $50 → Nerdminer
- $50–$200 → Bitaxe or NerdAxe
- $200–$500 → NerdQAxe++, Bitaxe Hex, or budget ASIC
- $500–$1,500 → Custom Editions or Space Heaters
- $1,500–$3,000 → New-gen full ASIC (S21)
- $3,000+ → S21 Pro or S21 XP
Efficiency Comparison: Joules per Terahash
Efficiency — measured in joules per terahash (J/TH) — determines how much electricity you spend per unit of hashrate. Lower is better. This metric is the single most important factor for long-term mining profitability.
| Generation | Representative Model | Efficiency (J/TH) | Year |
|---|---|---|---|
| Gen 1 | Antminer S9 | ~96 J/TH | 2016–2018 |
| Gen 2 | Antminer S17 | ~45 J/TH | 2019–2020 |
| Gen 3 | Antminer S19 / Whatsminer M30S++ | ~29–34 J/TH | 2020–2022 |
| Gen 3.5 | Antminer S19 XP / S19k Pro | ~21–23 J/TH | 2022–2023 |
| Gen 4 | Antminer S21 | ~17.5 J/TH | 2023–2024 |
| Gen 4.5 | Antminer S21 Pro | ~15 J/TH | 2024 |
| Gen 5 | Antminer S21 XP | ~13.5 J/TH | 2024–2025 |
What this means in practice: An S21 XP at 13.5 J/TH is 7 times more efficient than an S9 at 96 J/TH. For every dollar you spend on electricity, the S21 XP delivers 7x more hashrate. This is why newer miners are more profitable even though older miners like the S9 are much cheaper upfront.
However, older miners like the S9 still have value as space heaters — the heat output is identical regardless of efficiency, and the low upfront cost makes them excellent heating devices that also happen to mine some Bitcoin.
Accessories and Upgrades
The right accessories can dramatically improve your mining experience. D-Central manufactures many of these in-house, designed specifically for home miners.
For Open-Source Miners (Bitaxe / Nerd Family)
- Premium Bitaxe Heatsink — enables overclocking while maintaining silent operation
- Bitaxe Hex Heatsink — purpose-built for the 6-chip Hex board
- Modern Bitaxe Stand — D-Central original, multi-orientation mounting
- Bitaxe Mesh Stand — the original mesh ventilation case, created by D-Central
- Bitaxe Power Supply (5V 6A) — optimized for Bitaxe Supra/Ultra/Gamma
For Full ASICs
- Universal ASIC Shroud (8″) — duct hot air to a window, dramatically reduce noise
- Dual 120mm Silencer — cut noise without sacrificing cooling
- Control Board with BraiinsOS — aftermarket firmware for under/overclocking and monitoring
Setup Guides and Resources
We publish detailed setup guides for every miner category. Bookmark these for when your hardware arrives:
Open-Source Miners
- Bitaxe Supra Setup Guide
- Bitaxe Ultra Setup Guide
- Bitaxe Gamma Setup Guide
- Bitaxe GT Setup Guide
- Bitaxe Hex Setup Guide
- Nerdminer Setup Guide
- Bitaxe vs NerdAxe Comparison
Space Heaters and Full ASICs
- Space Heater Assembly and Maintenance Guide
- Space Heater Electrical Requirements
- Best Miners for Space Heaters
- 120V Mining Guide
- Antminer S19 vs S21 Comparison
- Antminer Error Code Reference
- Whatsminer Error Code Reference
General Guides
- Getting Started with Bitcoin Mining
- Mining Profitability Calculator
- Mining Pool Comparison 2026
- How to Solo Mine Bitcoin
- Solo Mining vs Pool Mining
- Noise Reduction Guide
Need Help? D-Central Has You Covered
D-Central Technologies is more than a hardware store. We are a full-service Bitcoin mining company — the only one in Canada that offers hardware sales, custom modifications, professional repair, hosting, consulting, and training under one roof. Since 2016, we have helped thousands of miners get started, scale up, and keep their machines running.
- ASIC Repair — Professional repair for Antminer, Whatsminer, and more. 38+ model-specific repair pages.
- Mining Consulting — Not sure where to start? Our team will design a mining setup for your specific situation.
- Mining Hosting — Host your miners at our Quebec facility with low-cost hydro power.
- Contact Us — Email, ticket system, or Discord. We respond.
Frequently Asked Questions
What is the best Bitcoin miner for beginners?
For absolute beginners, we recommend starting with a Bitaxe Supra or Nerdminer. Both are silent, low-power, and connect to your home WiFi for solo mining. The Bitaxe uses a real ASIC chip (BM1366) and delivers meaningful hashrate, while the Nerdminer is an ultra-low-cost educational device. Either one teaches you the fundamentals of Bitcoin mining hands-on. See our Getting Started Guide for a complete walkthrough.
Can I mine Bitcoin at home without 220V power?
Yes. All open-source miners (Bitaxe, NerdAxe, Nerdminer) run on standard 5V or 12V adapters plugged into any household outlet. D-Central’s custom Slim Edition and Loki Edition are specifically designed to run full ASIC miners on 110V/120V circuits. Read our 120V Mining Guide for safe setup instructions.
Is solo mining worth it with a Bitaxe?
It depends on your definition of “worth it.” A single Bitaxe at 500 GH/s has extremely low probability of finding a block in any given year. But solo miners have found blocks with Bitaxe devices — it happens. Solo mining is about sovereignty, supporting decentralization, and the thrill of the lottery. If you are looking for guaranteed daily returns, pool mining with a full ASIC is more predictable. If you believe in the principle that every hash counts and want to support the network independently, solo mining is deeply rewarding.
How loud are ASIC miners really?
Stock full-size ASIC miners (Antminer S19, S21, Whatsminer M30S++) run at approximately 75 dB — comparable to a vacuum cleaner running continuously. This is not livable in the same room. However, with shrouds and ducting, noise can be reduced to 50–55 dB. D-Central’s Space Heater Editions are specifically designed to manage noise for residential environments.
What is the most efficient Bitcoin miner available?
As of early 2026, the Antminer S21 XP leads with approximately 13.5 J/TH efficiency. The S21 Pro follows at approximately 15 J/TH. Both represent massive improvements over previous generations. For context, the S9 was 96 J/TH — meaning the S21 XP delivers over 7 times more hashrate per watt of electricity.
Can I really heat my home with a Bitcoin miner?
Absolutely. A miner that draws 1,500 watts produces exactly 1,500 watts of heat — the same as a conventional electric space heater. The difference: a conventional heater only produces heat, while a mining heater produces heat and Bitcoin. D-Central’s Space Heater Editions are enclosed in insulated cases with directional airflow, designed to distribute warm air into your room. In Canada, where heating is essential for 6+ months per year, this is one of the most compelling use cases for home mining.
Which miner has the best return on investment (ROI)?
ROI depends on your electricity cost, Bitcoin price, and network difficulty. Generally, newer-generation miners with better efficiency (lower J/TH) have faster ROI timelines because their electricity cost per TH is lower. Use our Mining Profitability Calculator to estimate ROI based on your specific electricity rate. In cold climates where the heat displaces conventional heating costs, the effective ROI of space heater editions can be significantly better than raw mining profitability numbers suggest.
Does D-Central repair miners?
Yes. D-Central operates a professional ASIC repair facility in Laval, Quebec, with 38+ model-specific repair pages and experience repairing Antminer, Whatsminer, Innosilicon, Canaan, and Halong Mining hardware. We perform hashboard repair, control board diagnostics, chip replacement, and full unit reconditioning. Ship your miner to us and we will diagnose and repair it.
What is the difference between Antminer and Whatsminer?
Antminer is manufactured by Bitmain (the market leader), while Whatsminer is manufactured by MicroBT. Both produce high-quality SHA-256 ASIC miners. Key differences: Antminer has a larger aftermarket ecosystem (more third-party firmware, parts, accessories), while Whatsminer units are known for robust build quality and competitive efficiency. D-Central carries both brands and repairs both. See our Whatsminer vs Antminer Comparison and Whatsminer Hub for detailed analysis.
Where can I buy these miners?
All miners, accessories, and custom editions listed on this page are available in the D-Central Shop. We ship from Canada to customers worldwide. For large orders or custom configurations, contact our team directly.
D-Central Technologies — Bitcoin Mining Hackers since 2016. We do not just sell miners. We build them, modify them, repair them, host them, and help you get the most out of every hash. Browse our full catalog or get in touch with our team.