● 21energy · ASIC · Sha256 · RELEASED MAR 2024

21energy Bitcoin Heater 3500 — Crypto Mining

Profit /day

Cost $8.40 @ $0.1/kWh

21energy Bitcoin Heater 3500 loses up to $2.32 a day, best on Sha256 hashpower sale. Also available: mining Sha256 at 110 Th/s ($-4.12/day). Pulling 3,500 W from the wall — at $0.10/kWh, not quite breaking even at today's rates.

● less than a minute ago Similar miners ↓

Tap to switch · 7 sections Crypto Mining 2/7

Best mining algorithm · 1 supported · 1 with live coin price

Sha256 · $-4.12/day net

Profitability Simulator →

Profitability over time

Mining payout history

Period	/Day	/Week	/Month	/Year
Income	$4.28	$29.96	$128.40	$1,562.20
Cost $0.1/kWh	$8.40	$58.80	$252.00	$3,066.00
Profit	$-4.12	$-28.84	$-123.60	$-1,503.80

Internal consensus blend — derived from external sources, not a raw quote from any single market.

All mineable algorithms

1 algorithms

Algorithm	Hashrate	Power	Efficiency	Income / day	Cost / day	Net / day
Sha256 ★ Best 110 Th/s · 3500.0 W	110Th/s	3500.0W	31.82J/T	$4.28	−$8.40	$-4.12

Mineable coins

1 algo

View all coins →

Coin	Algorithm	Your rig	Efficiency	Income	Cost	Profit
BTC Bitcoin	Sha256 110Th · 3500.0W	110Th	31.82 j/Th	$4.28	$8.40	$-4.12

Where to mine

Live stats where available

View all pools →

Pool	Algos supported	Fee	Scheme	Your rig
★ AntPool	Sha256 (BTC)	0.0%	PPLNS, FPPS	184.49 EH/s	Visit →
antpool.com	Sha256 (BTC)	—	—	184.49 EH/s	Visit →
braiins.com	Sha256 (BTC)	—	—	37.94 EH/s	Visit →
Cedric Crispin Pools	Sha256 (BTC)	—	—	2.79 TH/s	Visit →
f2pool.com	Sha256 (BTC)	—	—	88.50 EH/s	Visit →
foundrydigital.com	Sha256 (BTC)	—	—	309.75 EH/s	Visit →
G global.l6pool.com	Sha256 (BTC)	—	—	2.56 EH/s	Visit →
headframe.io	Sha256 (BTC)	—	—	10.11 EH/s	Visit →
K1Pool	Sha256 (BTC)	1.0%	PPLNS	551.69 TH/s	Visit →
M megahashpool.es	Sha256 (BTC)	—	—	2.76 TH/s	Visit →
Molepool	Sha256 (BTC)	—	—	7.30 PH/s	Visit →
nicehash.com	Sha256 (BTC)	—	—	6.36 EH/s	Visit →
Ocean	Sha256 (BTC)	0.0%	TIDES	31.80 EH/s	Visit →
ocean.xyz	Sha256 (BTC)	—	—	21.49 EH/s	Visit →
pool.binance.com	Sha256 (BTC)	—	—	6.46 EH/s	Visit →
pool.kryptex.com	Sha256 (BTC)	—	—	6.58 EH/s	Visit →
poolin.com	Sha256 (BTC)	—	—	2.52 EH/s	Visit →
R retropool.vargatech.net	Sha256 (BTC)	—	—	127.00 TH/s	Visit →
SecPool	Sha256 (BTC)	4.0%	FPPS, PPLNS	63.22 EH/s	Visit →
spiderpool.com	Sha256 (BTC)	—	—	75.86 EH/s	Visit →
viabtc.com	Sha256 (BTC)	—	—	69.54 EH/s	Visit →
whitebit.com	Sha256 (BTC)	—	—	6.36 EH/s	Visit →

Similar rigs · best mining

More 21energy miners

21energy Ofen 2 Pro

Sha256

$-0.31/day 1100W

21energy Bitcoin Heater 1500

21energy Bitcoin Heater 800

Today's algo & coin

Sha256

BTC · Bitcoin

Coin price $78,642.00

Network hashrate 935.55 EH/s

Your network share <0.0001%

See full coin page →

Sell hashpower instead?

Market Hashrate $-2.32

$1.80/day better than mining

See details →

Try your own hashrate

Th/s

Income/d

$0.00

Cost/d

$0.00

Profit/d

$0.00

Tap to switch · 7 sections Crypto Mining 2/7

Best mining algorithm · 1 supported · 1 with live coin price

Sha256 · $-4.12/day net

Profitability Simulator →

Profitability over time

Mining payout history

Period	/Day	/Week	/Month	/Year
Income	$4.28	$29.96	$128.40	$1,562.20
Cost $0.1/kWh	$8.40	$58.80	$252.00	$3,066.00
Profit	$-4.12	$-28.84	$-123.60	$-1,503.80

Internal consensus blend — derived from external sources, not a raw quote from any single market.

All mineable algorithms

1 algorithms

Algorithm	Hashrate	Power	Efficiency	Income / day	Cost / day	Net / day
Sha256 ★ Best 110 Th/s · 3500.0 W	110Th/s	3500.0W	31.82J/T	$4.28	−$8.40	$-4.12

Mineable coins

1 algo

View all coins →

Coin	Algorithm	Your rig	Efficiency	Income	Cost	Profit
BTC Bitcoin	Sha256 110Th · 3500.0W	110Th	31.82 j/Th	$4.28	$8.40	$-4.12

Where to mine

Live stats where available

View all pools →

Pool	Algos supported	Fee	Scheme	Your rig
★ AntPool	Sha256 (BTC)	0.0%	PPLNS, FPPS	184.49 EH/s	Visit →
antpool.com	Sha256 (BTC)	—	—	184.49 EH/s	Visit →
braiins.com	Sha256 (BTC)	—	—	37.94 EH/s	Visit →
Cedric Crispin Pools	Sha256 (BTC)	—	—	2.79 TH/s	Visit →
f2pool.com	Sha256 (BTC)	—	—	88.50 EH/s	Visit →
foundrydigital.com	Sha256 (BTC)	—	—	309.75 EH/s	Visit →
G global.l6pool.com	Sha256 (BTC)	—	—	2.56 EH/s	Visit →
headframe.io	Sha256 (BTC)	—	—	10.11 EH/s	Visit →
K1Pool	Sha256 (BTC)	1.0%	PPLNS	551.69 TH/s	Visit →
M megahashpool.es	Sha256 (BTC)	—	—	2.76 TH/s	Visit →
Molepool	Sha256 (BTC)	—	—	7.30 PH/s	Visit →
nicehash.com	Sha256 (BTC)	—	—	6.36 EH/s	Visit →
Ocean	Sha256 (BTC)	0.0%	TIDES	31.80 EH/s	Visit →
ocean.xyz	Sha256 (BTC)	—	—	21.49 EH/s	Visit →
pool.binance.com	Sha256 (BTC)	—	—	6.46 EH/s	Visit →
pool.kryptex.com	Sha256 (BTC)	—	—	6.58 EH/s	Visit →
poolin.com	Sha256 (BTC)	—	—	2.52 EH/s	Visit →
R retropool.vargatech.net	Sha256 (BTC)	—	—	127.00 TH/s	Visit →
SecPool	Sha256 (BTC)	4.0%	FPPS, PPLNS	63.22 EH/s	Visit →
spiderpool.com	Sha256 (BTC)	—	—	75.86 EH/s	Visit →
viabtc.com	Sha256 (BTC)	—	—	69.54 EH/s	Visit →
whitebit.com	Sha256 (BTC)	—	—	6.36 EH/s	Visit →

Similar rigs · best mining

More 21energy miners

21energy Ofen 2 Pro

Sha256

$-0.31/day 1100W

21energy Bitcoin Heater 1500

21energy Bitcoin Heater 800

Today's algo & coin

Sha256

BTC · Bitcoin

Coin price $78,642.00

Network hashrate 935.55 EH/s

Your network share <0.0001%

See full coin page →

Sell hashpower instead?

Market Hashrate $-2.32

$1.80/day better than mining

See details →

Try your own hashrate

Th/s

Income/d

$0.00

Cost/d

$0.00

Profit/d

$0.00

Frequently asked

About the 21energy Bitcoin Heater 3500

Is the 21energy Bitcoin Heater 3500 profitable?

As of September 2026, the 21energy Bitcoin Heater 3500 earns $-4.12/day mining Sha256 at an electricity cost of $0.1/kWh. At this electricity rate it is not profitable.

What crypto algorithms can the 21energy Bitcoin Heater 3500 mine?

The 21energy Bitcoin Heater 3500 can mine 1 algorithm(s); Sha256 is its most profitable, generating $4.28/day in direct mining revenue before electricity costs. Pool-based mining is the traditional approach — you point the rig at a mining pool and receive payouts in the native coin.

How much power does the 21energy Bitcoin Heater 3500 use?

The 21energy Bitcoin Heater 3500 consumes 3500W of power. At $0.1/kWh, that costs approximately $8.40/day in electricity.