Upgrade Your Mining Farm: Why Immersion Cooling is Your Next Smart Move from Air Cooling

Jul 11, 2025

The different types of cooling systems for ASIC miners include immersion cooling, hydro cooling, and air cooling. Among these, immersion cooling is the most commonly misunderstood.

What is Immersion Cooling from FogHashing?

Immersion cooling is a method used in crypto mining and data centers to manage heat by submerging miners, electronic components, or entire servers in a thermally conductive, but electrically insulating, liquid coolant — typically dielectric oil.

This technique allows heat to be removed directly from components such as processors and graphics cards, without the need for traditional air cooling methods. The liquid used is typically non-toxic and safe for electronics, ensuring that the miners and components are cooled uniformly and effectively, which can enhance performance and lifespan.

This cooling approach is particularly advantageous in environments with high power density, where traditional air cooling can struggle to manage the heat output effectively.

FogHashing immersion cooling systems are utilized in large-scale mining farms.

Immersion cooling is gaining significant traction, especially within the energy sector in recent years, offering a compelling alternative to traditional air cooling and hydro cooling for high-performance computing. However, misconceptions about its cost-effectiveness can deter potential adopters.

Myth 1: Immersion Cooling Has Exorbitant Upfront Costs.

Reality: While the initial investment may seem higher than traditional air-cooling systems, this is often offset by factors like:

  • Reduced hardware: Higher server density allows for fewer server racks and less infrastructure, lowering overall hardware costs.

  • Smaller footprint: Immersion cooling systems require less space, reducing real estate and construction needs.

  • Increased efficiency: Lower energy consumption translates to significant long-term savings on electricity bills. PUE < 1.06.

BC40Elite, 40 ft Container, Supports up to 200 miners

Myth 2: Maintenance Costs Are Prohibitive.

Reality: Immersion cooling systems generally require less maintenance than traditional air-cooled systems:

  • Reduced need for cleaning: Eliminates the need for frequent filter replacements and associated labor.

  • Simplified maintenance: Fewer moving parts and a sealed environment minimize maintenance requirements.

  • Predictive maintenance: Advanced monitoring systems can predict potential issues, allowing for proactive maintenance.

B100Cluster, 1MW, Supports up to 200 miners

Myth 3: Fluid Replacement and Inspection Are Costly.

Reality:

  • Long fluid lifespans: Modern dielectric fluids have extended lifespans, reducing the frequency of replacement. The lifespan of FHC01 is up to 10 years.

  • Routine Inspection and Testing: We offer free annual coolant sampling and third-party analysis to ensure system safety and stability.

  • Partner with Industry Leaders: By collaborating with industry leaders (Castrol, Shell, Mobil) in our fluid validation program, we’re pushing the boundaries to create fluids tailored for specific performance needs and applications.

The M56 that have been operating in the FHC01 coolant for two years

Myth 4: Immersion Cooling Increases Operational Complexity.

Reality:

  • Simplified operations: Our advanced plug-and-play modular design prioritizes scalability, compatibility, and user-friendliness, simplifying operations and reducing the need for specialized training.

  • Remote monitoring and management: Smart monitoring and control systems enable remote management and troubleshooting, minimizing downtime and reducing labor operating costs.

  1. Extra components inside: Lighting System, Ventilation and Filtration, Ambient Temperature and Humidity Sensors, Smoke Sensors, Remote Cameras, etc.

  2. Intelligent temperature control, one-button remote operation: The external refrigeration equipment can be intelligently controlled and adjusted according to the coolant temperature and chip temperature.

Smart monitoring and control of cooling system, miners, power, etc.

Myth 5: Air Cooling Remains the Most Cost-Effective Option.

Reality:

  • Hidden costs of air cooling: Factors like increased energy consumption, frequent maintenance, and a higher risk of hardware failures due to fan failures, dust, and heat can significantly impact the long-term costs of air cooling.

  • Total Cost of Ownership (TCO): When considering the full lifecycle costs, including energy consumption, maintenance, and potential for downtime, immersion cooling often demonstrates a lower TCO compared to traditional air cooling.

  • Immersion cooling reduces downtime and extends miner lifespan: Mining machines are isolated from the outside world, free of dust, static electricity, and short circuits, which greatly reduces the failure rate and extends their lifespan.

  • Energy Efficiency: Immersion cooling provides superior energy efficiency compared to air cooling and hydro cooling because it uses less power during the cooling process.

The combination of immersion cooling and solar-powered mining

Other Advantages of Immersion Cooling You May Overlook

  • Compatible with multiple miner models

1.Compatible with air-cooled and modified miners.

2.Compatible with different brands and models, including Antminer, Whatsminer, Avalon, Auradine, Sealminer, etc.

3.Such as S21/S21imm/S21xp/S21xp imm/S23/S23imm/S19Pro/S19/M66/M56/M50/M30/L9/L7/DG1/DG1+/AI3680/Sealminer A2, etc.

  • Worry-free overclocking, reducing the cost of computing power per unit

Fully utilizing the advantages of immersion cooling enables miners to run in a more stable and controllable environment.

  • Noise Reduction

Indoor noise is greatly reduced (noise of a single unit of original air-cooled equipment is about 80dB). Internal cooling is noise-free, and external cooling noise is 50–70dB.

FogHashing immersion container BC40Elite

While the initial investment in immersion cooling may be higher than traditional air cooling or hydro cooling, its long-term benefits — including reduced energy consumption, lower maintenance costs, and increased reliability — make it a highly cost-effective solution. We hope people can make informed decisions about their cooling infrastructure and unlock significant cost savings and operational efficiencies.

Ready to explore the true cost-effectiveness of immersion cooling for your environment? Contact us at FogHashing for a tailored proposal.

About FogHashing

FogHashing is an innovative provider of liquid cooling solutions for high-performance computing. By utilizing proprietary immersion and D2C cooling technology, it achieves ultra-high-density thermal management for Blockchain (through FogHashing product line) and AI computing (through Fognitive product line). The company is committed to enabling rapid, cost-effective, reliable, and sustainable development of next-gen compute power infrastructure.

Headquartered in the USA and Singapore, FogHashing currently serves clients in over 30 countries worldwide, collaborating with global partners.