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

Model

Air-cooled — blows warm air directly into the room (plug-and-play).

Purchase (€)Installation (€)

🏠 Home

Floor area130 m²

Heating months7 mo

Outside temperature9 °C

Energy label

⚡ Energy & heating

Electricity price0.23 €/kWh

Type of heating you replace

Gas price1.38 €/m³

1 m³ ≈ 9,8 kWh · ±90% → ≈ €0.157/kWh

₿ Market

BTC price (€)Network (EH/s)Pool fee (%)

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)

With heat saving Mining only

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

Informational overview — not tax, legal or financial advice.

Tax on mining

The tax treatment of mining revenue depends on your country and your situation: as a private individual it may count as wealth or as income; those who mine structurally or commercially with professional equipment are usually taxed as income. Amounts, rates and reference dates differ from one country to another — check the current figures with your own national tax authority. In doubt? Consult a tax adviser.

DAC8 — automatic data sharing

From 1 January 2026, crypto providers in the EU report customer data and transactions to the tax authority of their member state, which shares them automatically with the other EU countries. So always declare your crypto correctly.

MiCA & supervision

Since late 2024 the European MiCA legislation applies; in each Member State the national competent authority supervises crypto services. 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. CryptoCodes.eu gives no tax, legal or investment advice. Rules may change — check the current situation with the tax authority, the competent authority or an adviser. Always do your own research.