● 21energy · ASIC · Sha256 · RELEASED OCT 2026

21energy Ofen 3 Base — Crypto Mining

Profit /day

Cost $2.40 @ $0.1/kWh

21energy Ofen 3 Base loses up to $0.38 a day, best on Sha256 hashpower sale. Also available: mining Sha256 at 40.0 Th/s ($-0.75/day). Pulling 1,000 W from the wall — at $0.10/kWh, not quite breaking even at today's rates.

● 8 minutes ago Similar miners ↓

Tap to switch · 7 sections Crypto Mining 2/7

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

Sha256 · $-0.75/day net

Profitability Simulator →

Profitability over time

Mining payout history

Period	/Day	/Week	/Month	/Year
Income	$1.65	$11.55	$49.50	$602.25
Cost $0.1/kWh	$2.40	$16.80	$72.00	$876.00
Profit	$-0.75	$-5.25	$-22.50	$-273.75

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 40.0 Th/s · 1000.0 W	40.0Th/s	1000.0W	25.00J/T	$1.65	−$2.40	$-0.75

Mineable coins

1 algo

View all coins →

Coin	Algorithm	Your rig	Efficiency	Income	Cost	Profit
BTC Bitcoin	Sha256 40.0Th · 1000.0W	40.0Th	25.00 j/Th	$1.65	$2.40	$-0.75

Where to mine

Live stats where available

View all pools →

Pool	Algos supported	Fee	Scheme	Your rig
1miner.net	Sha256 (BTC)	—	—	2.42 TH/s	Visit →
★ AntPool	Sha256 (BTC)	0.0%	PPLNS, FPPS	202.63 EH/s	Visit →
antpool.com	Sha256 (BTC)	—	—	202.63 EH/s	Visit →
ausolo.ckpool.org	Sha256 (BTC)	—	—	4.43 PH/s	Visit →
axeminer.com	Sha256 (BTC)	—	—	69.28 TH/s	Visit →
B bcmonster.com	Sha256 (BTC)	—	—	12.79 TH/s	Visit →
bitcoin.cedric-crispin.com	Sha256 (BTC)	—	—	2.58 TH/s	Visit →
B bmine.pro	Sha256 (BTC)	—	—	4.66 EH/s	Visit →
Braiins Pool	Sha256 (BTC)	0.0%	FPPS	6.63 EH/s	Visit →
btc.jellyfc.com	Sha256 (BTC)	—	—	36.02 TH/s	Visit →
B btc.lmwpool.com	Sha256 (BTC)	—	—	181.93 TH/s	Visit →
btc.solopool.org	Sha256 (BTC)	—	—	3.01 PH/s	Visit →
btc.xppool.in	Sha256 (BTC)	—	—	8.45 TH/s	Visit →
Cedric Crispin Pools	Sha256 (BTC)	—	—	2.01 TH/s	Visit →
Cruxpool	Sha256 (BTC)	2.0%	FPPS	402.78 PH/s	Visit →
cruxpool.com	Sha256 (BTC)	—	—	402.57 PH/s	Visit →
cyberpool.io	Sha256 (BTC)	—	—	—	Visit →
downunderpool.xyz	Sha256 (BTC)	—	—	2.17 MH/s	Visit →
eusolo.ckpool.org	Sha256 (BTC)	—	—	93.70 PH/s	Visit →
F2Pool	Sha256 (BTC)	4.0%	FPPS, PPLNS	182.45 EH/s	Visit →
f2pool.com	Sha256 (BTC)	—	—	154.46 EH/s	Visit →
fenixpool.com	Sha256 (BTC)	—	—	560.31 TH/s	Visit →
findmyblock.xyz	Sha256 (BTC)	—	—	1.82 PH/s	Visit →
Foundry USA Pool	Sha256 (BTC)	0.0%	FPPS	325.59 EH/s	Visit →
foundrydigital.com	Sha256 (BTC)	—	—	303.47 EH/s	Visit →
G gamikpool.com	Sha256 (BTC)	—	—	20.15 MH/s	Visit →
G global.l6pool.com	Sha256 (BTC)	—	—	2.55 EH/s	Visit →
H hashbay.io	Sha256 (BTC)	—	—	3.93 MH/s	Visit →
headframe.io	Sha256 (BTC)	—	—	10.21 EH/s	Visit →
himpool.com	Sha256 (BTC)	—	—	14.18 TH/s	Visit →
hmpool.io	Sha256 (BTC)	—	—	651.93 TH/s	Visit →
JackPool	Sha256 (BTC)	—	—	154.26 TH/s	Visit →
K1Pool	Sha256 (BTC)	1.0%	PPLNS	1.80 PH/s	Visit →
kriptokyng.com	Sha256 (BTC)	—	—	4.30 TH/s	Visit →
m45core.com	Sha256 (BTC)	—	—	28.83 TH/s	Visit →
M mangledpool.com	Sha256 (BTC)	—	—	2.95 TH/s	Visit →
M megahashpool.es	Sha256 (BTC)	—	—	—	Visit →
M miners-pool.com	Sha256 (BTC)	—	—	—	Visit →
minorpool.com	Sha256 (BTC)	—	—	1.12 MH/s	Visit →
mysolopool.com	Sha256 (BTC)	—	—	2.07 PH/s	Visit →
N NexusPool	Sha256 (BTC)	0.0%	SOLO	2.02 PH/s	Visit →
nicehash.com	Sha256 (BTC)	—	—	13.03 EH/s	Visit →
Ocean	Sha256 (BTC)	0.0%	TIDES	46.44 EH/s	Visit →
ocean.xyz	Sha256 (BTC)	—	—	26.79 EH/s	Visit →
O onpool.net	Sha256 (BTC)	—	—	7.17 TH/s	Visit →
P pecpool.com	Sha256 (BTC)	2.5%	PPS+	1.66 EH/s	Visit →
P placepool.pro	Sha256 (BTC)	—	—	804.45 PH/s	Visit →
pool.binance.com	Sha256 (BTC)	—	—	49.91 EH/s	Visit →
pool.bitcoinmerch.com	Sha256 (BTC)	—	—	1.73 PH/s	Visit →
P pool.bitofsin.com	Sha256 (BTC)	—	—	—	Visit →
P pool.connoraherne.com	Sha256 (BTC)	—	—	947.00 GH/s	Visit →
P pool.defisurfers.xyz	Sha256 (BTC)	—	—	244.67 TH/s	Visit →
P pool.fewbit.online	Sha256 (BTC)	—	—	27.65 TH/s	Visit →
pool.kryptex.com	Sha256 (BTC)	—	—	6.46 EH/s	Visit →
P pool.melcrys.com	Sha256 (BTC)	—	—	—	Visit →
P pool.mouse1.io	Sha256 (BTC)	—	—	2.28 TH/s	Visit →
P pool.nerdminer.de	Sha256 (BTC)	—	—	1.44 PH/s	Visit →
pool.nerdminers.org	Sha256 (BTC)	—	—	7.67 GH/s	Visit →
P pool.nitopool.online	Sha256 (BTC)	—	—	—	Visit →
P pool.rodb2008.com	Sha256 (BTC)	—	—	—	Visit →
pool.solomining.de	Sha256 (BTC)	—	—	7.08 PH/s	Visit →
P pool.sunnydecree.de	Sha256 (BTC)	—	—	1.27 PH/s	Visit →
pool4ever.com	Sha256 (BTC)	—	—	—	Visit →
Poolin	Sha256 (BTC)	4.0%	FPPS	6.52 EH/s	Visit →
P public-pool-btc.ru	Sha256 (BTC)	—	—	178.96 GH/s	Visit →
SecPool	Sha256 (BTC)	4.0%	FPPS, PPLNS	33.49 EH/s	Visit →
secpool.com	Sha256 (BTC)	—	—	52.13 EH/s	Visit →
S sgsolo.ckpool.org	Sha256 (BTC)	—	—	3.78 PH/s	Visit →
solo-btc.2miners.com	Sha256 (BTC)	—	—	2.55 PH/s	Visit →
solo.ckpool.org	Sha256 (BTC)	—	—	98.60 PH/s	Visit →
solo.mineshop.eu	Sha256 (BTC)	—	—	3.21 PH/s	Visit →
solobtc.nmminer.com	Sha256 (BTC)	—	—	387.81 TH/s	Visit →
SoloFury	Sha256 (BTC)	—	—	525.39 TH/s	Visit →
solohash.co.uk	Sha256 (BTC)	—	—	1.84 PH/s	Visit →
S solopool.site	Sha256 (BTC)	—	—	—	Visit →
SpiderPool	Sha256 (BTC)	0.0%	PPLNS, FPPS	91.22 EH/s	Visit →
spiderpool.com	Sha256 (BTC)	—	—	56.62 EH/s	Visit →
trustpool.cc	Sha256 (BTC)	—	—	9.11 EH/s	Visit →
ViaBTC	Sha256 (BTC)	4.0%	PPS+, PPLNS	72.57 EH/s	Visit →
viabtc.com	Sha256 (BTC)	—	—	143.35 EH/s	Visit →
whitebit.com	Sha256 (BTC)	—	—	6.58 EH/s	Visit →
WhitePool	Sha256 (BTC)	2.0%	FPPS	6.62 EH/s	Visit →
Y yumtechpool.tr	Sha256 (BTC)	—	—	—	Visit →
zenithpool.net	Sha256 (BTC)	—	—	120.93 TH/s	Visit →

Similar rigs · best mining

More 21energy miners

21energy Ofen 3 Pro XL

Sha256

$-0.32/day 2200W

21energy Bitcoin Heater 3500

Sha256

$-3.85/day 3500W

21energy Ofen 3 Base XL

21energy Bitcoin Heater 1500

Sha256

$-1.53/day 1500W

Today's algo & coin

Sha256

BTC · Bitcoin

Coin price $85,584.00

Network hashrate 1.10 ZH/s

Your network share <0.0001%

See full coin page →

Sell hashpower instead?

Market Hashrate $-0.38

$0.37/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 · $-0.75/day net

Profitability Simulator →

Profitability over time

Mining payout history

Period	/Day	/Week	/Month	/Year
Income	$1.65	$11.55	$49.50	$602.25
Cost $0.1/kWh	$2.40	$16.80	$72.00	$876.00
Profit	$-0.75	$-5.25	$-22.50	$-273.75

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 40.0 Th/s · 1000.0 W	40.0Th/s	1000.0W	25.00J/T	$1.65	−$2.40	$-0.75

Mineable coins

1 algo

View all coins →

Coin	Algorithm	Your rig	Efficiency	Income	Cost	Profit
BTC Bitcoin	Sha256 40.0Th · 1000.0W	40.0Th	25.00 j/Th	$1.65	$2.40	$-0.75

Where to mine

Live stats where available

View all pools →

Pool	Algos supported	Fee	Scheme	Your rig
1miner.net	Sha256 (BTC)	—	—	2.42 TH/s	Visit →
★ AntPool	Sha256 (BTC)	0.0%	PPLNS, FPPS	202.63 EH/s	Visit →
antpool.com	Sha256 (BTC)	—	—	202.63 EH/s	Visit →
ausolo.ckpool.org	Sha256 (BTC)	—	—	4.43 PH/s	Visit →
axeminer.com	Sha256 (BTC)	—	—	69.28 TH/s	Visit →
B bcmonster.com	Sha256 (BTC)	—	—	12.79 TH/s	Visit →
bitcoin.cedric-crispin.com	Sha256 (BTC)	—	—	2.58 TH/s	Visit →
B bmine.pro	Sha256 (BTC)	—	—	4.66 EH/s	Visit →
Braiins Pool	Sha256 (BTC)	0.0%	FPPS	6.63 EH/s	Visit →
btc.jellyfc.com	Sha256 (BTC)	—	—	36.02 TH/s	Visit →
B btc.lmwpool.com	Sha256 (BTC)	—	—	181.93 TH/s	Visit →
btc.solopool.org	Sha256 (BTC)	—	—	3.01 PH/s	Visit →
btc.xppool.in	Sha256 (BTC)	—	—	8.45 TH/s	Visit →
Cedric Crispin Pools	Sha256 (BTC)	—	—	2.01 TH/s	Visit →
Cruxpool	Sha256 (BTC)	2.0%	FPPS	402.78 PH/s	Visit →
cruxpool.com	Sha256 (BTC)	—	—	402.57 PH/s	Visit →
cyberpool.io	Sha256 (BTC)	—	—	—	Visit →
downunderpool.xyz	Sha256 (BTC)	—	—	2.17 MH/s	Visit →
eusolo.ckpool.org	Sha256 (BTC)	—	—	93.70 PH/s	Visit →
F2Pool	Sha256 (BTC)	4.0%	FPPS, PPLNS	182.45 EH/s	Visit →
f2pool.com	Sha256 (BTC)	—	—	154.46 EH/s	Visit →
fenixpool.com	Sha256 (BTC)	—	—	560.31 TH/s	Visit →
findmyblock.xyz	Sha256 (BTC)	—	—	1.82 PH/s	Visit →
Foundry USA Pool	Sha256 (BTC)	0.0%	FPPS	325.59 EH/s	Visit →
foundrydigital.com	Sha256 (BTC)	—	—	303.47 EH/s	Visit →
G gamikpool.com	Sha256 (BTC)	—	—	20.15 MH/s	Visit →
G global.l6pool.com	Sha256 (BTC)	—	—	2.55 EH/s	Visit →
H hashbay.io	Sha256 (BTC)	—	—	3.93 MH/s	Visit →
headframe.io	Sha256 (BTC)	—	—	10.21 EH/s	Visit →
himpool.com	Sha256 (BTC)	—	—	14.18 TH/s	Visit →
hmpool.io	Sha256 (BTC)	—	—	651.93 TH/s	Visit →
JackPool	Sha256 (BTC)	—	—	154.26 TH/s	Visit →
K1Pool	Sha256 (BTC)	1.0%	PPLNS	1.80 PH/s	Visit →
kriptokyng.com	Sha256 (BTC)	—	—	4.30 TH/s	Visit →
m45core.com	Sha256 (BTC)	—	—	28.83 TH/s	Visit →
M mangledpool.com	Sha256 (BTC)	—	—	2.95 TH/s	Visit →
M megahashpool.es	Sha256 (BTC)	—	—	—	Visit →
M miners-pool.com	Sha256 (BTC)	—	—	—	Visit →
minorpool.com	Sha256 (BTC)	—	—	1.12 MH/s	Visit →
mysolopool.com	Sha256 (BTC)	—	—	2.07 PH/s	Visit →
N NexusPool	Sha256 (BTC)	0.0%	SOLO	2.02 PH/s	Visit →
nicehash.com	Sha256 (BTC)	—	—	13.03 EH/s	Visit →
Ocean	Sha256 (BTC)	0.0%	TIDES	46.44 EH/s	Visit →
ocean.xyz	Sha256 (BTC)	—	—	26.79 EH/s	Visit →
O onpool.net	Sha256 (BTC)	—	—	7.17 TH/s	Visit →
P pecpool.com	Sha256 (BTC)	2.5%	PPS+	1.66 EH/s	Visit →
P placepool.pro	Sha256 (BTC)	—	—	804.45 PH/s	Visit →
pool.binance.com	Sha256 (BTC)	—	—	49.91 EH/s	Visit →
pool.bitcoinmerch.com	Sha256 (BTC)	—	—	1.73 PH/s	Visit →
P pool.bitofsin.com	Sha256 (BTC)	—	—	—	Visit →
P pool.connoraherne.com	Sha256 (BTC)	—	—	947.00 GH/s	Visit →
P pool.defisurfers.xyz	Sha256 (BTC)	—	—	244.67 TH/s	Visit →
P pool.fewbit.online	Sha256 (BTC)	—	—	27.65 TH/s	Visit →
pool.kryptex.com	Sha256 (BTC)	—	—	6.46 EH/s	Visit →
P pool.melcrys.com	Sha256 (BTC)	—	—	—	Visit →
P pool.mouse1.io	Sha256 (BTC)	—	—	2.28 TH/s	Visit →
P pool.nerdminer.de	Sha256 (BTC)	—	—	1.44 PH/s	Visit →
pool.nerdminers.org	Sha256 (BTC)	—	—	7.67 GH/s	Visit →
P pool.nitopool.online	Sha256 (BTC)	—	—	—	Visit →
P pool.rodb2008.com	Sha256 (BTC)	—	—	—	Visit →
pool.solomining.de	Sha256 (BTC)	—	—	7.08 PH/s	Visit →
P pool.sunnydecree.de	Sha256 (BTC)	—	—	1.27 PH/s	Visit →
pool4ever.com	Sha256 (BTC)	—	—	—	Visit →
Poolin	Sha256 (BTC)	4.0%	FPPS	6.52 EH/s	Visit →
P public-pool-btc.ru	Sha256 (BTC)	—	—	178.96 GH/s	Visit →
SecPool	Sha256 (BTC)	4.0%	FPPS, PPLNS	33.49 EH/s	Visit →
secpool.com	Sha256 (BTC)	—	—	52.13 EH/s	Visit →
S sgsolo.ckpool.org	Sha256 (BTC)	—	—	3.78 PH/s	Visit →
solo-btc.2miners.com	Sha256 (BTC)	—	—	2.55 PH/s	Visit →
solo.ckpool.org	Sha256 (BTC)	—	—	98.60 PH/s	Visit →
solo.mineshop.eu	Sha256 (BTC)	—	—	3.21 PH/s	Visit →
solobtc.nmminer.com	Sha256 (BTC)	—	—	387.81 TH/s	Visit →
SoloFury	Sha256 (BTC)	—	—	525.39 TH/s	Visit →
solohash.co.uk	Sha256 (BTC)	—	—	1.84 PH/s	Visit →
S solopool.site	Sha256 (BTC)	—	—	—	Visit →
SpiderPool	Sha256 (BTC)	0.0%	PPLNS, FPPS	91.22 EH/s	Visit →
spiderpool.com	Sha256 (BTC)	—	—	56.62 EH/s	Visit →
trustpool.cc	Sha256 (BTC)	—	—	9.11 EH/s	Visit →
ViaBTC	Sha256 (BTC)	4.0%	PPS+, PPLNS	72.57 EH/s	Visit →
viabtc.com	Sha256 (BTC)	—	—	143.35 EH/s	Visit →
whitebit.com	Sha256 (BTC)	—	—	6.58 EH/s	Visit →
WhitePool	Sha256 (BTC)	2.0%	FPPS	6.62 EH/s	Visit →
Y yumtechpool.tr	Sha256 (BTC)	—	—	—	Visit →
zenithpool.net	Sha256 (BTC)	—	—	120.93 TH/s	Visit →

Similar rigs · best mining

More 21energy miners

21energy Ofen 3 Pro XL

Sha256

$-0.32/day 2200W

21energy Bitcoin Heater 3500

Sha256

$-3.85/day 3500W

21energy Ofen 3 Base XL

21energy Bitcoin Heater 1500

Sha256

$-1.53/day 1500W

Today's algo & coin

Sha256

BTC · Bitcoin

Coin price $85,584.00

Network hashrate 1.10 ZH/s

Your network share <0.0001%

See full coin page →

Sell hashpower instead?

Market Hashrate $-0.38

$0.37/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 Ofen 3 Base

Is the 21energy Ofen 3 Base profitable?

As of October 2026, the 21energy Ofen 3 Base earns $-0.75/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 Ofen 3 Base mine?

The 21energy Ofen 3 Base can mine 1 algorithm(s); Sha256 is its most profitable, generating $1.65/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 Ofen 3 Base use?

The 21energy Ofen 3 Base consumes 1000W of power. At $0.1/kWh, that costs approximately $2.40/day in electricity.