🌡️ Heat Output: 5.25 kW
💧 Flow: ~60°C
🔄 Return: ~35°C
📅 Monthly Heat: 3,779 kWh
Miner Setup
Building
−25 °C0 °C+15 °C
Cold winter — heating season active
Energy Costs
COP automatically reduced at lower outdoor temperatures
☀️ Summer — Hot Water Mode
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Live Market
BTC/EUR 85,000
Network 800 EH/s
Effective kWh Rate
—
calculating…
Mining Revenue
€0
per month (est.)
Heating Saved
€0
per month
Hot Water Value
€0
summer estimate
NET MONTHLY
€0
after electricity, inc. heating savings
Payback WITH Heating
0 mo
incl. savings
Payback Mining Only
0 mo
no heat credit
91%
of heating needs covered
Coverage Details
Monthly demand: 800 kWh
Miner produces: 3,779 kWh
Heat replaced: 800 kWh
💹 Cumulative ROI — Mining + Heating
With heating savings
Mining only
📊 Miner Comparison
| Model | Your Miner ✓ | Alt 1 | Alt 2 |
|---|
How Heat Reuse Works
Your miner generates heat as a byproduct — capture it, use it, profit from it.
Miner Runs 24/7
Hydro-cooled ASIC miners push hot water through a closed loop. 98% of electrical energy becomes usable heat — nothing wasted.
Water Captures Heat
A plate heat exchanger transfers heat from the miner's coolant loop to your home's heating circuit. Water flows at 55–65°C — radiator-ready.
Home Stays Warm
In winter, your floor heating or radiators run directly from miner heat. In summer, the same system has a hot water tank for free showers.
Mine While You Heat
You earn Bitcoin (or LTC/DOGE) continuously. The heating offset shrinks your real electricity cost, dramatically accelerating payback.
Frequently Asked Questions
Does the miner heat really replace my boiler?
▼
Yes, for most homes in heating season. A single Antminer S23 Hydro at 5.36 kW covers 100% of a 120 m² B-class home at −5°C, or about 40% of a 300 m² home.
What temperature does the water reach?
▼
Hydro ASICs typically produce 55–65°C outlet water — hot enough for standard radiators (55–60°C), underfloor heating (35–45°C), and domestic hot water preheat.
What happens in summer when I don't need heating?
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Switch to Summer mode above. Heat can supply domestic hot water, preheat a pool, or be shed via a dry cooler. Mining continues year-round.
What connection does this require at home?
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Hydro miners need a 3-phase 32A supply, a water pump, plate heat exchanger, expansion vessel, and thermostatic controls. Installation: €800–2,500.
Is the mining revenue estimate realistic?
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The calculator uses live BTC/LTC/DOGE prices and real network difficulty. Revenue = (hashrate / network_hashrate) × block_reward × blocks_per_day × price.
Can I use this for a business or multiple miners?
▼
Absolutely. Scale the wattage to your array total. For commercial heat supply contact us — we've delivered multi-MW installations across Europe.
How the Calculations Work
Transparent methodology — every number explained
📐
Monthly Heating Demand (kWh)
The calculator uses a heating degree-day (HDD) model calibrated to Northern European climates. Formula: monthly_kWh = m² × (class_factor ÷ 4,500) × max(0, 20 − outdoor_temp) × 30. Energy class factors (kWh/m²/year): A+ = 54, A = 100, B = 155, C = 220, D = 300, E = 380. Calibrated so a 450 m² A+ house at −20°C requires ~6,500 kWh/month — matching real Baltic heat pump data. A class C house uses ~4× more energy per m² than A+.🌡️
Heat Pump COP at Low Temperatures
A heat pump's COP is not fixed — it drops significantly in cold weather. At +7°C rated COP is 3.0–4.0; at −20°C it drops to ~1.5. A hydro miner producing 1 kWh of heat replaces exactly 1 kWh of heating demand. The heat pump would have used 1 ÷ COP kWh of electricity for that same heat. At COP 1.5 the miner saves 0.67 kWh — hydro mining becomes more valuable the colder it gets.⚡
Your Real Electricity Cost per kWh
The effective rate is the key output. Formula: effective_rate = (gross_cost − heating_savings) ÷ monthly_kWh. Example: S23 Hydro at 5,360 W costs €849/month at €0.22/kWh. At −10°C (COP 2.0) it covers 3,782 kWh of heating worth €416 in avoided pump electricity. Net cost: €433. Effective rate: €0.112/kWh — nearly half the grid rate, while mining Bitcoin.Key Formulas
Monthly heat demand = m² × (class_factor ÷ 4500) × (20 − outdoor_temp) × 30 Heat pump COP(temp) = rated_COP − (7 − temp) × (rated_COP − 1.2) ÷ 32 [min 1.2] Heating saved (€) = min(miner_heat, heat_demand) ÷ COP × electricity_price Effective rate (€/kWh) = (gross_cost − heating_saved) ÷ monthly_kWh_consumed
Ready to heat your home with Bitcoin mining?
Browse our full range of hydro-cooled ASIC miners — ready to ship across Europe.