I'm working on a project to use cool a server with watercooling and use this heat for my house. I'm planning to cool the CPU and memory (maybe GPU). It will host my own websites as well as some services for friends.

Issue 1: home bandwidth is limited.

Issue 2: no calculations = cold house


1: Are there any server tasks which are CPU intensive, but don't require to much bandwidth? (Game server? Video editing?)

2: Folding at home uses spare CPU time. Are there any services like this that will also generate some money? I have looked at Threefold Initiative and Golem, but I'm not sure if you can turn that off fast when a web request comes in...



  • I'd like to mention that, the amount of CPU usage needed to heat your house would be huge; need I say, also you would need more than a few CPU's to do the job. And, anyone needing that much CPU usage would probably simply rent time on a supercomputer. – Alex Dec 7 '18 at 0:41
  • 2. Mining ? Generates (little) money and heat – Jules R Dec 7 '18 at 7:32

You are greatly overestimating the power dissipation of modern PC's and underestimating the heating power required. Even the most powerful modern builds with dual CPU and 4 GPU's would generate about 1kW of heat. To heat even a small house you would need at least 10kW, so you would be looking at running at least 10 of those PC's. My Ryzen 1700x build pulls about 150W from the mains when I run compilers at 100% CPU usage.

Which gives me an idea, if you are mostly interested in heating your house than doing useful computation - get some very cheap used motherboards, CPU's and GPU's from old generations, like second generation Intel 2xxx, Nvidia 5xx, 6xx, even something like 9800 which you can get for ~20 USD and just run a cryptocurrency farm on them.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.