Mining knowledge, clearly explained.
Guides, comparisons and basics around open-source Bitcoin mining.
Guide New NerdOctaxe Hydro as a Supplementary Heater: What 220 Watts of Waste Heat Really Do in Winter
A miner is an electric heater that mines Bitcoin on the side. The NerdOctaxe Hydro gives off around 220 watts of heat, water-cooled and comparatively quiet. We work out which room that heats, what a kilowatt-hour of heat costs compared with a fan heater, gas and a heat pump, and for whom the miner as a heater pays off.
16. October 2026 · 16 min read Read →
Guide Bitcoin Mining with a Dynamic Electricity Tariff: When Tibber and Co. Should Switch the Miner On
Negative electricity prices, exchange power at wholesale cost, miner on when it is cheap: that sounds like the solution for home mining in Germany. We work out what remains of a negative exchange price for the end customer, where the threshold price per miner lies and in which hours running from the grid covers its cost. The answer is sobering, and it still helps.
09. October 2026 · 16 min read Read →
Tutorial Controlling a Bitcoin Miner with Home Assistant: Surplus, Electricity Price and Temperature in One Automation
A Bitaxe should run when the sun delivers surplus or electricity is cheap, and throttle when the room gets too warm. This tutorial builds exactly that in Home Assistant: connect the miner via AxeOS, measure surplus and price, write a three-level automation with hysteresis. With ready-to-copy YAML.
02. October 2026 · 18 min read Read →
Guide Bitcoin Mining with Solar Power: Turning Balcony Solar and PV Surplus into Hashrate
At noon your balcony solar kit gives power away to the grid, in the evening you buy it back at 37 cents. A small Bitcoin miner can fill that gap. We work out which miner fits an 800-watt system, what a kilowatt-hour earns in a miner compared with feed-in, and how to make the miner follow the sun automatically.
25. September 2026 · 17 min read Read →
Buying guide Avalon Nano 3S review 2026: is the 6 TH/s home miner worth it?
The Avalon Nano 3S delivers around 6 TH/s at roughly 140 watts and stays quiet enough for a living room. We work through the electricity cost, the efficiency and the block odds and compare it with the Bitaxe Gamma, Nerdaxe Gaia and NerdQaxe++.
26. August 2026 · 12 min read Read →
Comparison Mining Hosting vs. Mining Rental: Which One Fits You?
Run your own ASIC in someone else’s data centre, or rent hashrate without owning any hardware? Both models explained, with their strengths, typical terms and a clear map of who is better served by which.
01. August 2026 · 11 min read Read →
Tutorial Setting up a Bitcoin full node: LiquidBox with Umbrel OS
From unboxing to your own full node: connect the LiquidBox, set up Umbrel, sync the blockchain, connect a wallet and point your own miner at your own node.
30. July 2026 · 9 min read Read →
Tutorial How to set up a Nerdaxe: step-by-step guide
How to get a Nerdaxe Gamma, Gaia, NerdQaxe ++ or NerdOctaxe running: the right power supply, the Nerdaxe_XXXX setup WiFi, pool and address, and the IP shown on the display.
26. July 2026 · 8 min read Read →
Guide Bitcoin Mining Without Your Own Power Hookup: 3 Ways That Work
High electricity prices, a rented flat, no wish for noise and heat? You can mine anyway: with rented hashrate at zero watts at home, with miners that draw about as much as a light bulb, or with balcony solar covering the daytime share.
24. July 2026 · 11 min read Read →
Buying guide Nerdaxe Gaia: the new BM1373 miner with 2.6 TH/s reviewed
The Nerdaxe Gaia is one of the first home miners with the new BM1373 ASIC: ~2.6 TH/s at ~25 watts. All specs, the comparison with the Nerdaxe Gamma, and pre-order details.
23. July 2026 · 6 min read Read →
Tutorial How to set up a Bitaxe: step-by-step guide
How to get a Bitaxe Gamma 601, Gamma Copper Pro, GT 801 or Supra Hex 702 running: power, WiFi, pool and Bitcoin address in AxeOS, with every value you need to type.
21. July 2026 · 8 min read Read →
Guide Is Renting a Bitcoin Miner Worth It? Here Is What You Get
Real hashrate working for your own Bitcoin address, a live dashboard and a small but real chance at 3.125 BTC, with no device at home. What a miner rental delivers, who it suits, and five checks to vet any provider.
16. July 2026 · 11 min read Read →
Comparison Buy or Rent a Bitcoin Miner? Find Your Path
Your own Bitaxe on the desk or rented hashrate with a live dashboard? Both get you into real Bitcoin mining. We compare electricity costs, payback and odds, and show how to combine the two.
09. July 2026 · 11 min read Read →
Tutorial AxeOS tuning: setting frequency & voltage correctly
More efficiency instead of more crashes: how to optimise your Bitaxe’s frequency and voltage in small, safe steps while keeping an eye on J/TH and temperature.
02. June 2026 · 8 min read Read →
Basics Open-source Bitcoin miners: what is open on the Bitaxe, Nerdaxe and NerdQaxe
Board design, firmware and licence for every miner we sell, with the repository and the date we checked it. Plus AxeOS and NerdOS, our OSM-OS forks and the parts of an open miner that stay closed.
01. June 2026 · 9 min read Read →
Comparison NerdQaxe ++ vs. NerdOctaxe: which home miner suits you?
Four ASICs or eight? We compare hashrate, power consumption, noise, cooling and placement in detail, so you can pick the right device for your setup.
28. May 2026 · 7 min read Read →
Guide Solo mining with the Bitaxe: is it worth it?
Lottery or investment? We calculate the chance of finding a block and what running a miner costs, and explain why tens of thousands of people mine solo anyway.
20. May 2026 · 7 min read Read →
Tutorial Setting up a Bitaxe & NerdQaxe: the complete guide
From unboxing to your first accepted share: connect to WiFi, enter the mining pool and your Bitcoin address in AxeOS or NerdOS, then check the values. Explained step by step.
12. May 2026 · 8 min read Read →
Tutorial Setting up a Bitaxe mining pool: choosing solo vs. pool correctly
Stratum URL, Bitcoin address, worker and fallback pool: how to enter your mining pool in AxeOS, and how to decide whether solo or pool mining suits you better.
28. April 2026 · 7 min read Read →
Guide Calculating electricity costs for Bitcoin mining: simple formula & examples
What does a home miner cost per month? The simple formula, example values for Bitaxe, NerdQaxe and NerdOctaxe, and ways to save with waste heat, solar power and night tariffs.
15. April 2026 · 6 min read Read →
Tutorial Fixing Bitaxe problems: the most common errors and their fixes
No WiFi, no shares, low hashrate, overheating or constant reboots? The typical Bitaxe and NerdQaxe problems and how to fix them step by step.
08. April 2026 · 8 min read Read →
Guide Calculating Bitcoin mining profitability realistically
Hashrate, difficulty, block reward and electricity costs: how to estimate what home mining yields, with an example calculation for pool and solo mining.
05. April 2026 · 7 min read Read →
Guide Lottery miner explained: how a Bitaxe finds a whole block
Why a small Bitaxe can hit a complete Bitcoin block with some luck, how high the chance really is and why the block lottery fascinates so many people.
28. March 2026 · 6 min read Read →
Guide Buying a Bitaxe: what to look out for (buying guide)
Chip generation, original or clone, power supply, cooling, firmware, EU shipping instead of customs fees, warranty and support: the buying criteria for your Bitaxe, with a checklist at the end.
20. March 2026 · 8 min read Read →
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