I've got two long haired cats, a dog and I live with a smoker. I use my computer pretty much all day everday, and though I put it to sleep in the night, those fans are constantly going during the day.

In just 6 months the rear fans have so much hair wrapped around them it looks more like something from a vacuum cleaner rather than electronic equipment!

Due to this, I'm interested in liquid cooling. However, it appears that liquid cooled systems have fans and liquid cooling? Are those just hybrid solutions? They wouldn't really help my situation.

There does appear to be fanless systems that use a radiator to dissipate heat. If I implemented one of these could I seal up the vents on my PC and never have to dust it again? Is there a disadvantage to fanless liquid cooling?

I don't need to overclock at the moment but I ever want to push my components will fanless liquid cooling be pretty rubbish?