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21energy
·
ASIC
·
Sha256
·
RELEASED JUN 2024
21energy Mini Heater
Profit /day
$-0.29
Income /day
$0.55
0.00000494 BTC/day
Cost $0.84 @ $0.1/kWh
Hashrate
10Th/s
Sha256
Power · Efficiency
350.0W
35.00 j/Th
21energy Mini Heater loses up to $0.29 a day, best on Sha256 hashpower sale. Also available: mining Sha256 at 10 Th/s ($-0.45/day). Pulling 350 W from the wall — at $0.10/kWh, not quite breaking even at today's rates.
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3 minutes ago
Similar miners ↓
Tap to switch · 7 sections Overview 1/7
Today's best income
Market Hashrate · $-0.29/day net
$
Not available
AI Rental
GPU marketplace
ASICs run a single hash function — they don't run AI workloads. Only general-purpose GPUs can be rented for AI.
⛏
Crypto Mining
Direct chain mining
$-0.45
//Day net
Income $0.39 · on Sha256
See details →
⇄
★ Winner
Market Hashrate
Sell raw hashpower
$-0.29
//Day net
Income $0.55 · NH 24h · NH OB · MRR
See details →
Profitability over time · best of rig
Daily projection
Daily winners across all income streams — averaged from your rig's recorded history at $0.1/kWh
Loading...
| Period | /Day | /Month |
|---|---|---|
| Income | $0.55 | $16.57 |
|
Cost
$0.1/kWh
|
$0.84 | $25.20 |
| Profit | $-0.29 | $-8.63 |
Internal consensus blend — derived from external sources, not a raw quote from any single market.
Similar rigs
More 21energy miners
Profit vs cost
cost 215.38%
Full specifications
21energy Mini Heater
· 21energy
· Sha256
Power draw
350 W
Hashrate
10Th/s
on Sha256
Best efficiency
35.00 J/T
on Sha256
Algos supported
1
Device type
ASIC
Released
Jun 2024
Manufacturer
21energy
Cost / day
$0.84
at $0.1/kWh
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Tap to switch · 7 sections Overview 1/7
Today's best income
Market Hashrate · $-0.29/day net
$
Not available
AI Rental
GPU marketplace
ASICs run a single hash function — they don't run AI workloads. Only general-purpose GPUs can be rented for AI.
⛏
Crypto Mining
Direct chain mining
$-0.45
//Day net
Income $0.39 · on Sha256
See details →
⇄
★ Winner
Market Hashrate
Sell raw hashpower
$-0.29
//Day net
Income $0.55 · NH 24h · NH OB · MRR
See details →
Profitability over time · best of rig
Daily projection
Daily winners across all income streams — averaged from your rig's recorded history at $0.1/kWh
Loading...
| Period | /Day | /Month |
|---|---|---|
| Income | $0.55 | $16.57 |
|
Cost
$0.1/kWh
|
$0.84 | $25.20 |
| Profit | $-0.29 | $-8.63 |
Internal consensus blend — derived from external sources, not a raw quote from any single market.
Profit vs cost
cost 215.38%
Full specifications
21energy Mini Heater
· 21energy
· Sha256
Power draw
350 W
Hashrate
10Th/s
on Sha256
Best efficiency
35.00 J/T
on Sha256
Algos supported
1
Device type
ASIC
Released
Jun 2024
Manufacturer
21energy
Cost / day
$0.84
at $0.1/kWh
Similar rigs
More 21energy miners
Frequently asked
About the 21energy Mini Heater
Is the 21energy Mini Heater profitable?
As of September 2026, the 21energy Mini Heater earns $-0.45/day mining Sha256 at an electricity cost of $0.1/kWh. At this electricity rate it is not profitable.
How much power does the 21energy Mini Heater use?
The 21energy Mini Heater consumes 350W of power. At $0.1/kWh, that costs approximately $0.84/day in electricity.
Can the 21energy Mini Heater earn from AI rental?
No. The 21energy Mini Heater is a mining ASIC — it has no general-purpose compute cores and cannot run AI workloads. AI rental is a GPU-only income mode.
What crypto algorithms can the 21energy Mini Heater mine?
The 21energy Mini Heater can mine 1 algorithm(s); Sha256 is its most profitable, generating $0.39/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.
Can the 21energy Mini Heater sell hashrate on NiceHash?
Yes. NiceHash and similar hashrate marketplaces (Mining Rig Rentals, etc.) let the 21energy Mini Heater sell its Sha256 hashpower directly — buyers rent the compute, you receive BTC per hash delivered. It is similar to mining, but removes coin-price risk since you are paid in BTC on NiceHash's rate.