Antminer S21 Hydro

Taux de hachage 335.0 TH/s Puissance 5,360 W Efficiency 16.0 J/TH

Bitcoin Space Heater S9 Edition

Taux de hachage 12.0 TH/s Puissance 1,100 W Efficiency 91.7 J/TH

Antminer S21 Hydro vs Bitcoin Space Heater S9 Edition

Side-by-side specs, profitability, and home mining comparison.

Specifications Comparison

Antminer S21 Hydro	Specification	Bitcoin Space Heater S9 Edition
335.0 TH/s	Taux de hachage	12.0 TH/s
5,360 W	Consommation électrique	1,100 W
16.0 J/TH	Efficiency	91.7 J/TH
50 dB	Niveau de bruit	50 dB
15.8 kg	Weight	8.0 kg
18,288 BTU/hr	BTU Output	3,753 BTU/hr
44/100	Home Mining Score	59/100
—	Release Year	—
SHA-256	Algorithme	SHA-256
Bitmain	Manufacturer	D-Central

Profitability Comparison

Electricity Rate:

$/kWh

Antminer S21 Hydro

Daily Revenue 0.00015531 BTC $12.03

Daily Electricity -$12.86

Daily Profit -$0.84

Monthly -$25.11

Yearly -$305.54

Bitcoin Space Heater S9 Edition

Daily Revenue 0.00000556 BTC $0.43

Daily Electricity -$2.64

Daily Profit -$2.21

Monthly -$66.28

Yearly -$806.35

Based on BTC price of $77,437 and current network difficulty as of Apr 24, 2026. Actual results vary.

Verdict

Selon notre analyse multifactorielle, le Antminer S21 Hydro l'emporte sur 3 des 5 facteurs (efficacité, hashrate, rapport qualité-prix). Le Bitcoin Space Heater S9 Edition a l'avantage en consommation électrique and score de minage domestique. Consultez les spécifications détaillées et les calculs de rentabilité ci-dessus pour déterminer quel mineur convient le mieux à votre installation.

Winner: Antminer S21 Hydro — l'emporte sur 3 des 5 facteurs

Best For...

Best for Profitability

Tie

Both miners produce similar daily profit.

Best for Home Mining

Bitcoin Space Heater S9 Edition

Score: 59/100. 50 dB noise level.

Best for Efficiency

Antminer S21 Hydro

16.0 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Antminer S21 Hydro or Bitcoin Space Heater S9 Edition more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 Hydro is more profitable at $-0.84/day compared to $-2.21/day for the Bitcoin Space Heater S9 Edition. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Which is quieter, the Antminer S21 Hydro or Bitcoin Space Heater S9 Edition?

Both miners have similar noise levels. Check the specs table above for exact decibel readings.

Which is better for home mining, the Antminer S21 Hydro or Bitcoin Space Heater S9 Edition?

The Bitcoin Space Heater S9 Edition scores 59/100 on our Home Mining Score (vs 44/100 for the Antminer S21 Hydro). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.

What is the efficiency difference between Antminer S21 Hydro and Bitcoin Space Heater S9 Edition?

The Antminer S21 Hydro runs at 16.0 J/TH while the Bitcoin Space Heater S9 Edition runs at 91.7 J/TH — a difference of 75.7 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.

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