Pencil drawing of the Heatbit Bitair

Air filter Desktop In production

Heatbit Bitair

A portable tabletop air purifier with a pre-filter, true HEPA filter and activated carbon filter, plus a built-in 1.2 TH/s bitcoin miner that you can run solo or in a pool. It draws 25 W in total, has a clean air delivery rate of 100 m³/h for particles and is rated for rooms up to about 18.6 m². Heatbit sells it direct for $179, and US resellers list it too: Altair Technology at $169, CryptoCloaks at $169.42 and Bitcoin Merch at $179.99.

Best price $169

$140.83 per TH · New · In stock at Altair Technology

single unit (sale price, was $179)

Note from 5 Nov 2026.

Reviews from Nostr ↓

Hashrate1.2 TH/s worst 250 GH/sbest 1.16 PH/s 185th best of 197 (the bar uses a log scale)
Power (stock)25 W lowest 11 Whighest 22 kW 191st highest of 199 (the bar uses a log scale)
Efficiency15 J/TH worst 100 J/THbest 8.9 J/TH 53rd best of 195
Earns per kWh$0.073 worst $0.010best $0.171 128th best of 195
Heat output85 BTU/h worst 38 BTU/hbest 75,067 BTU/h 191st best of 199 (the bar uses a log scale)
Noise25–44 dB worst 76 dBbest 25 dB 28th best of 68
Price per TH$140.83 worst $539.96best $1.82 150th best of 156 (the bar uses a log scale)

Where to buy

Store Trustpilot Condition Availability Listed price In your currency Per TH Checked Link
Altair Technology Ships from United States single unit (sale price, was $179) These notes are from 5 Nov 2026. Price and stock were checked since. TrustScore 4.7 out of 5, 623 reviews New In stock $169 $169 $140.83 12 Nov 2026 Visit
CryptoCloaks Ships from United States single unit (sale price, was $175; 9 in stock) No score New In stock $169 $169 $141.18 5 Nov 2026 Visit
Heatbit Maker's own shop single unit (list $249; free filter with each additional unit) TrustScore 4.4 out of 5, 370 reviews New In stock $179 excl. tax $179 $149.17 5 Nov 2026 Visit
Bitcoin Merch Ships from United States TrustScore 4.4 out of 5, 1,082 reviews New Check store $180 $180 $149.99 5 Nov 2026 Visit

Prices as listed on each store's page on the date shown, without shipping. Prices marked excl. tax leave out VAT or sales tax, and others may too. Per TH uses the hashrate of the unit each store sells. Converted at ECB rates of 11 Nov 2026. Trustpilot scores are for the store, not the device. Each store's name opens its page, with everything it sells and its reviews.

Heat, running cost and sats

Heat per day
—
Electricity per day
—
Mining earns per day*
—
Net cost per day
—
Net cost per kWh of heat
—
Solo: chance of a block per year
—
Earns per kWh, on 3-month averages
—
Payback
—

*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.

Specifications

BrandHeatbit
ModelBitair
SKU—
TypeAir filter · Home
Form factorDesktop
CoolingAir
Production statusIn production
Launch dateSep 2026 *
Hashrate1.2 TH/s
Power consumption (stock)25 W
Mining efficiency15 J/TH *
ASIC chipNot known yet
Heat output85 BTU/h
Input voltage15 V DC, 1.7 A over USB-C, from a 100–240 V AC adapter *
Frequency50/60 Hz *
Net dimensions (W × D × H)158 × 158 × 259 mm (6.2 × 6.2 × 10.2 in) *
Net weight1.1 kg (2.4 lb) *
Noise25–44 dB *
Operating temperature—
Air filterPre-filter + true HEPA + activated carbon · 100 m³/h clean air · rooms up to 19 m² (maker's claim)
ColoursWhite *
Company based inUnited States
Made inChina *

* Not confirmed by the maker's own documents yet.

Heat modes

ModeHashratePowerHeat
Max mode (chip 17 W of the 25 W total)1.2 TH/s25 W85 BTU/h

Features

  • 1.2 TH/s bitcoin miner (SHA-256)
  • 25 W total in max mode, of which the chip uses 17 W
  • Pre-filter, true HEPA and activated carbon filter
  • Captures 99.97% of particles of 0.3 microns and larger
  • Clean air delivery rate: 100 m³/h for particles, 80 m³/h for gases
  • Rated for rooms up to about 18.6 m²
  • Solo or pool mining, switched in the app
  • Mining can be turned off to use it only as a purifier
  • Sleep mode, which the maker calls essentially silent
  • Wi-Fi and Heatbit app: hashrate, power, TVOC, CO2, filter life and fan speed
  • Lightning withdrawals, one-off or monthly
  • USB-C power
  • Replacement filters $20
  • 12-month warranty from shipment on units bought direct from Heatbit; filters not covered

Colours

White

Reviews

Reviews are posted on Nostr, so they belong to the people who wrote them, not to us. Sign in with a Nostr extension or signer app to add yours.

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Sources and data notes

Not yet confirmed from the maker's own documents: SKU (no maker SKU on any page opened; heatbit.com/products.json returned HTTP 429 today. The unit label gives the model as 'Bitair 1', and ATHBBAR is Altair's own stock code); launch date (no first-shipment date found. AsicMinerValue and ASICB give September 2026 and June 2026 press expected shipments from then; Heatbit's pages give no date. Announced with $149 Genesis pre-orders on 11 June 2026); where it's made (printed on the unit label and box in Altair's photos; heatbit.com does not say, and Bitcoin Merch's page says 'Assembled & tested in the USA'); colours (Bitcoin Merch lists White and the maker's photos show a white unit; heatbit.com's text names no colour); efficiency (15 J/TH is the maker's chip-only figure; the whole device is about 20.8 J/TH by arithmetic, 25 W / 1.2 TH/s); input voltage (from the unit label and adapter label in Altair's photos; heatbit.com says only USB-C); frequency (from the adapter label in Altair's photo; heatbit.com does not say); height (heatbit.com says 259 mm; the unit label and box say 258 mm); weight (1.1 kg is the 'Product N.W' printed on the box in Altair's photo; heatbit.com gives no weight, and Altair's listing says 3.6 lbs (1.63 kg), probably with packaging); minimum noise (heatbit.com says 25–44 dB; the box in Altair's photo prints 28–44 dB; Altair also lists Light 31, Medium 36 and Turbo 43 dB); operating temperature (not on heatbit.com; AsicMinerValue lists 5–45 °C with no maker source, so left null); store listings shipsFrom for Heatbit (its shipping policy mentions warehouses but names no location); store listings shipsFrom for CryptoCloaks (its page says only 'ready to ship from CryptoCloaks'; US is taken from its Colorado address and its separate EU site); store listings availability for Bitcoin Merch (Add to cart is open and the page says 'Shipping in 1-2 weeks', but it has no stock wording).

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