Pencil drawing of the Canaan Avalon Nano 3S

Space heater Desktop In production

Canaan Avalon Nano 3S

A small desktop heater-miner that runs from an included 140 W USB-C GaN adapter and mines about 6 TH/s. It is quiet enough for a desk, has a round LED screen and is set up with the Avalon Family app. Often used for solo (lottery) mining while warming a desk area.

Best price $219

$36.50 per TH · New · In stock at Altair Technology

sale price (was $299); price includes US tariffs and import duties

Note from 4 Nov 2026.

Reviews from Nostr ↓

Hashrate6 TH/s worst 250 GH/sbest 1.16 PH/s 164th best of 197 (the bar uses a log scale)
Power (stock)140 W lowest 11 Whighest 22 kW 167th highest of 199 (the bar uses a log scale)
Efficiency23 J/TH worst 100 J/THbest 8.9 J/TH 142nd best of 195
Earns per kWh$0.065 worst $0.010best $0.171 142nd best of 195
Heat output478 BTU/h worst 38 BTU/hbest 75,067 BTU/h 167th best of 199 (the bar uses a log scale)
Noise30–40 dB worst 76 dBbest 25 dB 15th best of 68
Price per TH$36.50 worst $539.96best $1.82 108th 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 sale price (was $299); price includes US tariffs and import duties These notes are from 4 Nov 2026. Price and stock were checked since. TrustScore 4.7 out of 5, 623 reviews New In stock $219 $219 $36.50 12 Nov 2026 Visit
Solo Satoshi Ships from United States TrustScore 4.8 out of 5, 206 reviews New In stock $219 $219 $36.50 4 Nov 2026 Visit
MineShop Ships from EU (IE/LV) black; EUR 290.12 incl. VAT These notes are from 4 Nov 2026. Price and stock were checked since. TrustScore 4.7 out of 5, 1,610 reviews New In stock €236 excl. tax $262 $43.74 12 Nov 2026 Visit
Canaan Official Shop Ships from United States · Maker's own shop TrustScore 2.7 out of 5, 6 reviews New In stock $299 $299 $49.83 4 Nov 2026 Visit
21energy Ships from Austria TrustScore 4.8 out of 5, 1,194 reviews New In stock €283 excl. tax $315 $52.54 4 Nov 2026 Visit
Mining Wholesale Ships from Netherlands Ships out in 3-7 working days. Price excl. VAT. TrustScore 4.7 out of 5, 401 reviews New In stock €309 excl. tax $344 $57.30 10 Nov 2026 Visit
The Solo Mining Co Ships from United Kingdom Store notes White Edition; sale price (was £299.99) TrustScore 4.9 out of 5, 205 reviews New In stock £280 $373 $62.10 7 Nov 2026 Visit
The Solo Mining Co Ships from United Kingdom Store notes black; on backorder; sale price (was £299.99) TrustScore 4.9 out of 5, 205 reviews New Pre-order £280 $373 $62.10 7 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

BrandCanaan
ModelAvalon Nano 3S
SKU—
TypeSpace heater · Home
Form factorDesktop
CoolingAir
Production statusIn production
Launch dateJan 2025 *
Hashrate6 TH/s
Power consumption (stock)140 W
Mining efficiency23 J/TH
ASIC chipCanaan A3197S × 12 (named by the device's maker)
Heat output478 BTU/h
Input voltage28 V DC from included 140 W adapter
Frequency50/60 Hz
Net dimensions (W × D × H)205 × 115 × 59 mm (8.1 × 4.5 × 2.3 in)
Net weight0.86 kg (1.9 lb)
Noise30–40 dB *
Operating temperature-5–30 °C (23–86 °F)
Area heatedAbout 0.9–2.8 m² (our estimate)
ColoursBlack, White
Company based inSingapore
Made in—

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

Features

  • 140 W GaN USB-C PD 3.1 adapter included (US/UK/EU plugs)
  • 12 chips, 4 nm
  • Round LED display
  • Dust-proof design
  • Wi-Fi module via USB, LAN supported
  • Avalon Family app
  • 360-day limited warranty

Colours

BlackWhite

Reviews

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Sources and data notes

Not yet confirmed from the maker's own documents: SKU; where it's made; launch date (CES 2025 launch/pre-order month; first shipping date not confirmed); noise (canaan.io says 30–40 dB, shop says 33–40 dB).

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