Mining heat calculator
Calculate how much your heating costs drop when you use your miner's residual heat to warm your home.
Independent · In English
Calculate your real electricity price per kWh when you use a Bitcoin miner to help heat — from a small Bitaxe or Avalon Nano on your desk to a large miner on the central heating. Including outside temperature and heat-pump COP that drops in the cold.
⛏️ Miner
Air-cooled — blows warm air directly into the room (plug-and-play).
🏠 Home
⚡ Energy & heating
1 m³ ≈ 9,8 kWh · ±90% → ≈ €0.157/kWh
₿ Market
Tip: link these fields to a live API later for current figures.
Effective electricity rate
€0.076/kWh
vs €0.23 from the grid — thanks to reused heat.
Mining revenue
€66
per month (estimate)
Heating saved
€185
per month
Net per month
€-25
incl. heat saving
Heat demand coverage
56%
1181 of 2097 kWh
Payback time
—
incl. saving
Mining only
—
without heat credit
💹 Cumulative ROI (24 mo)
How it works
Almost all the electricity a miner uses is released as heat. A heat pump would have used only 1/COP of electricity for the same heat — and because the COP drops in the cold, heating along with mining becomes more valuable as it gets colder.Regulation in the Netherlands
Informational overview — not tax, legal or financial advice.
Tax: box 3 or box 1
For private individuals, crypto usually falls under box 3 (wealth). In 2026 the tax-free allowance is €59,357 per person (€118,714 for tax partners); the reference date is 1 January. Those who mine structurally or commercially with professional equipment may fall under box 1 (income), with rates up to 49.5%. In doubt? Consult a tax adviser.
DAC8 — automatic data sharing
From 1 January 2026, crypto providers within the EU automatically exchange customer data and transactions with the tax authority. So always declare your crypto correctly.
MiCA & AFM supervision
Since late 2024 the European MiCA legislation applies; the AFM supervises crypto services in the Netherlands. Note: investing in cryptocurrencies carries significant risks — you may lose your deposit.
Installation & safety
Small miners (Bitaxe, Avalon Nano) plug into an ordinary socket. Larger or industrial miners often require three-phase powerand a dedicated circuit. Have the connection to central heating or hot water done by a certified installer.
All amounts are estimates based on your input and may differ from reality. CryptoCode.nl gives no tax, legal or investment advice. Rules may change — check the current situation with the tax authority, the AFM or an adviser. Always do your own research.
© 2026 CryptoCode.nl — estimates, no guarantee of returns.