Mining Bitcoin or other cryptocurrencies at home comes with two big challenges: noise and heat. Traditional air-cooled ASIC miners are loud — often exceeding 75 dB, similar to a vacuum cleaner — and they release enormous amounts of heat into the room. For many hobbyists, this makes residential mining nearly impossible without special soundproofing or air conditioning.

Liquid immersion cooling solves this problem. By submerging ASIC miners in a dielectric fluid and using a radiator to remove heat, miners can run their hardware quietly, efficiently, and with far less maintenance. In this article, we’ll explore the benefits of home immersion cooling, compare it with air cooling, and dive into the FogHashing C1 and C2 systems — two of the most popular solutions for residential miners.

Why Use Liquid Cooling at Home?

Noise Reduction

The first and most noticeable improvement is silence. Immersion cooling eliminates the screaming fans inside ASIC miners. Instead, you hear only the quiet hum of pumps and radiator fans. FogHashing kits, for example, run at 45–50 dB at the tank and around 65 dB at 10 meters from the radiator — a massive drop compared to the 75–80 dB of air-cooled miners.

Better Temperature Control

Liquid has a much higher heat capacity than air. It absorbs and spreads heat evenly, keeping ASIC chips at stable temperatures even under heavy load. That means no thermal throttling, no hot spots, and consistent performance — even during summer heatwaves.

Dust Protection

Air cooling pulls dust into the miner, coating heatsinks and boards. In immersion, miners are sealed in fluid — no dust, no dirt. The hardware stays clean, which reduces maintenance and extends component life.

Extended Lifespan

Stable temperatures and the absence of dust and fan vibration reduce stress on chips and solder joints. Many miners report 3–5 years of extra life from their hardware when cooled by immersion.

Overclocking Potential

Because immersion systems keep chips so cool, miners can safely push beyond stock hashrates. Gains of 20–50% are common in immersion setups, making rigs significantly more profitable.

Air Cooling vs. Immersion Cooling

• Noise: Air-cooled miners are unbearably loud; immersion setups are nearly silent.

• Heat: Air dumps hot exhaust directly into the room; immersion directs heat to a radiator that can be placed outside.

• Maintenance: Air requires frequent dust cleaning and fan replacements; immersion mostly requires coolant checks.

• Cost: Air is cheaper upfront; immersion has higher initial costs but offers long-term savings in hardware life and efficiency.

For hobbyists who want to mine in a home, basement, or garage without disturbing the household, immersion is the clear winner.

FogHashing C1 and C2 Immersion Kits

FogHashing C1

• Designed for one ASIC miner.

• Holds about 40 liters of dielectric fluid.

• Radiator capacity: 6 kW of heat dissipation.

• Noise: 45–50 dB at the tank, ~65 dB at 10 m from the radiator.

• Simple installation (around 15 minutes).

• Compatible with popular miners like Antminer S19/S21, WhatsMiner M20/M30, Avalon, Goldshell, and more.

The C1 kit is ideal for beginners who want a plug-and-play solution to cool a single high-power ASIC quietly at home.

FogHashing C2

• Built for two ASIC miners.

• Uses 80 liters of coolant with a 12 kW radiator.

• Intelligent dual-fan cooling with automatic speed adjustment.

• Features: leak protection, universal wheels for easy mobility, drain valve for maintenance.

• Supports overclocking up to +50% hashrate gains while staying stable.

The C2 is the go-to choice for small-scale enthusiasts who want to run two miners at home efficiently and quietly.

Radiator Systems at Home

A critical part of immersion cooling is the dry cooler radiator, which transfers heat from the fluid to the air.

• Placement: Best installed outdoors or venting heat into a garage. This keeps living spaces comfortable.

• Power: Fans and pumps typically draw 100–200W, far less than the fans and AC required for air cooling.

• Noise: Radiator fans are quieter and run only as fast as needed, thanks to automatic speed control.

• Space: Radiators are the largest part of the setup but can be placed flexibly with hose extensions.

Some miners even reuse the heat — channeling radiator output into a basement, greenhouse, or hot water system.

Real-World Experiences

• Home heating bonus: One U.S. miner used two Antminer S19j Pros in a FogHashing tank to heat his 100-year-old house, replacing his oil boiler and mining Bitcoin at the same time.

• Silence achieved: Reddit and Bitcointalk users report their miners are “barely audible” in immersion, finally making residential mining livable.

• Low maintenance: Many users report running immersion rigs for months with almost no intervention, unlike constant dust cleaning in air setups.

Profitability and ROI

Immersion systems have higher upfront costs, but they pay off in several ways:

1. Overclocking = more hashrate, more revenue.

2. Fewer repairs and replacements save money.

3. Dust-free and cool environments extend miner lifespans.

4. Heat reuse offsets household energy bills.

Over 3–4 years, many home miners see 20–30% better returns compared to running air-cooled rigs.

Conclusion

Home liquid immersion cooling is transforming residential mining. With kits like the FogHashing C1 and C2, hobbyists can finally enjoy quiet, efficient, and low-maintenance mining at home.

No more screaming fans, no more dust, and no more rooms overheated by ASICs. Instead, you get stable performance, the potential for overclocking, and even the option to reuse heat for practical purposes.

For anyone serious about quiet home mining setups, immersion cooling isn’t just a luxury — it’s becoming the new standard.