Home energy
How much can an ASIC miner heat a house?
A miner turns essentially all of the electricity it draws into heat, just like an electric radiator — except it also earns Bitcoin while doing it. Pick your town, describe your home, and see how the numbers compare with natural gas, propane, a heat pump, reverse-cycle air conditioning and other options.
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Your home
Miner
Energy prices
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Heating sources to compare against
Bitcoin network
Difficulty is assumed constant for a year. It has historically risen, which reduces future revenue.
Methodology and assumptions
Heat demand
Daily mean temperatures come from the ECMWF ERA5 reanalysis via Open-Meteo and are averaged over three years. Heating degree days use max(0, base − mean temperature). Building heat loss is estimated from floor area and insulation, then calculated as UA × degree days × 24 ÷ 1000 kWh.
Miner heat and revenue
A miner converts effectively all electrical input into heat. Heat-led mode runs only for the time needed to supply usable heat; always-on mode counts surplus heat as wasted. Expected BTC earnings use hashrate, network difficulty, block subsidy, recent fees, actual runtime and pool fee. Price, difficulty and fee data come from mempool.space.
Energy prices and comparisons
Eurostat household averages prefill electricity and natural gas where available. Propane and other fuels require your own tariff. Each reference cost divides annual heat demand by efficiency or seasonal COP, then applies the fuel price. The calculator also shows operating cost per delivered BTU. Heat-pump break-even BTC price and difficulty solve for the mining revenue at which the miner plus backup heat equals the configured heat pump, holding every other input fixed.
Not modelled
The estimate excludes installation, noise mitigation, ventilation, time-of-use tariffs, hardware failure, maintenance, resale value, tax treatment and future changes in Bitcoin price or difficulty. Treat it as an order-of-magnitude comparison, not financial or engineering advice.
FAQ
Questions people ask
How much of a home can an ASIC miner heat?
Nearly all of a miner's electrical draw becomes heat, but whether it covers your home depends on its wattage, your building heat loss, local climate and operating hours. The calculator estimates both annual demand and usable miner heat.
Why can mining economics change the heating comparison?
The net cost combines electricity, expected Bitcoin revenue, network difficulty, fees, uptime and any backup heat. A change in price or difficulty can materially change the comparison even when your heat demand stays the same.
Is a miner a substitute for a heat pump or boiler?
It is resistive electric heat with a mining-revenue offset, not a high-COP heat pump. Installation, noise, ventilation, maintenance, tariffs and tax are outside the estimate, so use it as a scenario comparison rather than an engineering design.
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