Players build “Steampunk water: cooled PC” that weighs 99 kilograms is gaining traction fast, and early community reaction suggests this one has real momentum.
As with major stories across retro and modern gaming, the key details are in how players are responding, how the platform owners move next, and whether this remains a short spike or a longer trend.
In the PC modding community, many people use large radiators, custom water cooling, and even wall-to-wall radiators, but one creator recently took things to a completely different level – turning a Victorian cast-iron radiator directly into a computer cooling system.
YouTuber Billet Labs recently revealed a crazy three-month DIY project: building a complete water-cooled gaming PC on the bottom of a Victorian cast-iron radiator, and the radiator is not just a decoration, it is really the main radiator of the entire water-cooling system.
This is not “there is a computer next to the heater”, but – the computer is directly inside the heater.
The heating body is the entire water cooling system
The concept of this project is actually very simple: since the radiator is originally used to dissipate heat, why not let it really help the computer dissipate heat?
Billet Labs first 3D scanned the bottom structure of the heater, then designed and 3D printed a bracket to install the computer hardware in the space at the bottom of the heater. The entire system uses high-end configurations, including: Ryzen 7 9800X3D, RTX 5080 graphics card, and 32GB RAM.
But the biggest problem is actually not the computer, but the heater itself. The empty weight of this cast iron heater is close to 80 kilograms, and because it is an old device, there is still a lot of rust and metal debris inside.
18-liter water cooling system almost turned into a disaster
In order to connect the PC water cooling to the heater, Billet Labs hand-made a complete copper pipe system and added a filter to prevent debris inside the heater from entering the water pump. The entire system uses the original exhaust port of the heater to remove air, and an additional T-shaped joint is designed so that the heater and PC can be filled with water separately.
The entire system required 18 liters of coolant, and the first start-up took eight hours to remove air bubbles. After that, a series of problems appeared: including the fan getting stuck, copper shavings being sucked into the water pump, air remaining in the system, and even water leaking from the connectors! The entire heating PC, weighing nearly 100 kilograms, had to be pushed around the house in an attempt to expel the air bubbles.
It finally worked successfully, but the process was quite arduous
The problem is not over yet! During a test, the CPU temperature suddenly spiked, and it was found that residual debris inside the heater blocked the filter. In the end, Billet Labs had to connect an 8-meter-long water pipe and flush the entire system repeatedly.
After multiple drains and cleanings, the system was finally able to operate stably. Under the “Cyberpunk 2077” stress test, even with the fan turned off, the CPU temperature remained at around 68°C, and the heat dissipation performance was actually quite good.
A 99kg steampunk gaming PC
The finished PC weighs a whopping 99 kilograms and has a steampunk-like appearance. Even the power button is an antique brass gear lever that exists purely for style.
Of course, not many people would really want to copy this kind of modification, after all, not everyone has an 80kg heater at home. But in the PC DIY world, performance is often not the only goal. Sometimes, what’s really amazing is that someone actually wants to do it.