D-Central Antminer S9 Space Heater Edition
- Hashrate
- 13.5 TH/s
- Power
- 1,350 W
- Efficiency
- 100 J/TH
- Noise
- 40 dB
Space heater Floor standing Discontinued
Heatbit's first bitcoin-mining heater, crowdfunded on Kickstarter and shipped from October 2022. It drew 1,400 W, mined up to 14 TH/s and was rated for rooms up to about 170 sq ft. It is no longer listed in Heatbit's shop.
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The maker gives no hashrate for this mode, so we can't work out its mining income.
*What a pool would pay on average at today's difficulty, block reward and bitcoin price, before pool fees. Solo miners usually earn nothing, and very rarely a whole block. A plain electric heater turns the same electricity into the same heat, so the mining income is what makes the difference.
Payback is how long the bitcoin a device earns takes to add up to its price. It leaves out electricity, which buys the heat: compare earnings per kWh with your electricity price to see whether mining alone covers it. It uses the average of the last 3 months, to 12 Nov 2026: bitcoin at $79,558, 969 EH/s on the network and 3.15 BTC a block, less a 2% pool fee, for the hours you set. It cuts the block subsidy in half at each halving, the next around Apr 2028, and otherwise assumes those carry on unchanged, which they won't. Income at today's difficulty and price is about 17% below that average. Hashrate usually rises, though miners that stop paying after a halving may switch off, which leaves more for the rest. How we work it out.
| Brand | Heatbit |
|---|---|
| Model | Original (2022) |
| SKU | — |
| Type | Space heater · Home |
| Form factor | Floor standing |
| Cooling | Air |
| Production status | Discontinued * |
| Launch date | Oct 2022 |
| Hashrate | 14 TH/s |
| Power consumption (stock) | 1,400 W |
| Mining efficiency | 100 J/TH |
| ASIC chip | Not known yet |
| Heat output | 4,777 BTU/h |
| Input voltage | — |
| Frequency | — |
| Net dimensions (W × D × H) | — |
| Net weight | — |
| Noise | 42 dB |
| Operating temperature | — |
| Area heated | 16 m² (maker's claim) |
| Colours | — |
| Company based in | United States |
| Made in | — |
* Not confirmed by the maker's own documents yet.
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Not yet confirmed from the maker's own documents: production status (inferred: not in Heatbit's current product feed); images; dimensions; weight; input voltage; colours.
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