Bitcoin Space Heater BTU Calculator

Yes. This is physics, not marketing. A 1,400-watt device produces 1,400 watts of heat regardless of whether it is a ceramic heating element or a Bitcoin ASIC chip. The first law of thermodynamics guarantees that all electrical energy consumed by any device ultimately converts to thermal energy. A Bitcoin miner at 1,400W produces exactly 4,777 BTU/hr of heat — identical to a 1,400W electric space heater. The only difference is that the miner is also performing useful computational work (mining Bitcoin) while generating that heat.

Standard ASIC miners use industrial fans that can reach 75–85 dB (louder than a vacuum cleaner). D-Central replaces these with premium silent fans — Noctua NF-A14 or Arctic P14 Max — bringing noise levels down to 35–45 dB depending on the model. For reference, a typical refrigerator runs at about 40 dB, and a quiet conversation is about 50 dB. Our Slim Edition and StealthMiner models are the quietest at approximately 35 dB. With optimized firmware, you can further reduce fan speed (and noise) by lowering the hashrate/wattage.

Mining revenue depends on several variables: your miner’s hashrate, current network difficulty, Bitcoin price, and your mining pool’s fee structure. The estimates in this calculator use current network conditions and should be treated as approximations. At today’s difficulty, an S9 at 13 TH/s will earn a modest amount of sats daily — think of it as a discount on your heating bill rather than a profit center. The S19 at 56 TH/s earns proportionally more. The key insight is that you are spending this electricity on heating regardless; the Bitcoin is a bonus that reduces your effective heating cost. Over a full Canadian winter (5–7 months of heating), those sats accumulate. And if Bitcoin’s price appreciates over time, those sats become worth more in hindsight.

Most of our models run on standard North American 120V outlets. The S9 (1,400W), S17 (1,000W), Slim Edition (900W), Loki Edition (1,150W), L3+ (800W), and BitChimney (800W) all draw under 1,500W and work on a standard 15A circuit. The S19 Space Heater Edition at 3,250W requires a 240V/20A outlet (like a dryer or oven outlet) — similar to what a large window AC unit or baseboard heater uses. We include the appropriate power supply and cable with every order. If you are unsure about your electrical setup, our consulting team can help you plan.

You have several options. Many customers vent the hot air outside using a window adapter or dryer vent duct — similar to a portable AC unit’s exhaust. Some move the miner to a garage or basement. Others simply turn it off for the summer months and run it only during the heating season (October through April in most of Canada). With optimized firmware, you can also reduce wattage significantly, lowering both heat output and power consumption while still earning some Bitcoin. D-Central also sells shrouds and duct adapters specifically designed for venting ASIC exhaust.

A Bitcoin space heater is an electric resistance heater — the same category as baseboard heaters, ceramic heaters, and oil-filled radiators. It produces 1 watt of heat per 1 watt of electricity (COP of 1.0). Heat pumps achieve COP ratings of 2.0–4.0, meaning they move 2–4 watts of heat per watt of electricity. So a heat pump is more energy-efficient for primary whole-home heating. A Bitcoin space heater is best used as supplemental or zone heating — warming the room you are in, heating a basement, garage, or workshop, or replacing an existing electric space heater. If you are already using electric resistance heating (baseboard, portable heater, in-floor electric), a Bitcoin space heater is a direct replacement at zero additional energy cost, with the bonus of mining Bitcoin. Think of it as upgrading your existing electric heater, not replacing your furnace.