Pencil drawing of the D-Central The BitChimney

Space heater Floor standing In production

D-Central The BitChimney

A tall 3D-printed chimney that holds one reconditioned Antminer 19-series hashboard and uses rising warm air plus four quiet 120 mm fans. About 21–24 TH/s on roughly 600–650 W from a normal 120 V outlet, at around 40–45 dB.

Best price $379

$18.06 per TH · Refurbished · In stock at D-Central Store notes

BitChimney S19, Gelid fans (S19j Pro versions CAD 705-725)

Note from 4 Nov 2026.

Reviews from Nostr ↓

Hashrate21 TH/s worst 250 GH/sbest 1.16 PH/s 147th best of 197 (the bar uses a log scale)
Power (stock)600 W lowest 11 Whighest 22 kW 156th highest of 199 (the bar uses a log scale)
Efficiency29 J/TH worst 100 J/THbest 8.9 J/TH 169th best of 195
Earns per kWh$0.053 worst $0.010best $0.171 169th best of 195
Heat output2,047 BTU/h worst 38 BTU/hbest 75,067 BTU/h 156th best of 199 (the bar uses a log scale)
Noise40–45 dB worst 76 dBbest 25 dB 30th best of 68
Price per TH$18.06 worst $539.96best $1.82 88th 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
D-Central Ships from Canada Store notes BitChimney S19, Gelid fans (S19j Pro versions CAD 705-725) These notes are from 4 Nov 2026. Price and stock were checked since. No score Refurbished In stock CA$540 $379 $18.06 12 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

BrandD-Central
ModelThe BitChimney
SKUDC-SH-BITCHIMNEY
TypeSpace heater · Home
Form factorFloor standing
CoolingAir
Production statusIn production
Launch date—
Hashrate21 TH/s
Power consumption (stock)600 W
Mining efficiency29 J/TH
ASIC chipBitmain BM1398 × 76 (reported by an independent source); BM1362 in some versions
Miner inside1 x reconditioned Bitmain Antminer S19 or S19j Pro hashboard
Heat output2,047 BTU/h
Input voltage120 V (standard household outlet)
Frequency—
Net dimensions (W × D × H)—
Net weight7 kg (15.4 lb)
Noise40–45 dB
Operating temperature—
Area heatedAbout 4–12 m² (our estimate)
ColoursOrange, Black
Company based inCanada
Made inCanada

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

Hashrate versions

VersionHashratePowerEfficiency
BitChimney S1921 TH/s600 W29 J/TH
BitChimney S19j Pro24 TH/s650 W27 J/TH

Features

  • Vertical chimney airflow design
  • Single Antminer S19 or S19j Pro hashboard (reconditioned)
  • Loki kit for 120 V single-board operation
  • Four silent 120 mm fans (Gelid Gale-01 or Arctic P12 Max)
  • Silent APW3 PSU included
  • VNish or BraiinsOS+ firmware
  • Orange or black enclosure
  • 90-day warranty

Colours

OrangeBlack

Reviews

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Sources and data notes

Chip by version: BitChimney S19j Pro: BM1362 × 126 (reported). See the chips page.

Not yet confirmed from the maker's own documents: dimensions; operating temperature; launch date.

Spotted a mistake? Let us know.