Noctua, a brand best known for its high-quality computer ... and overall heating performance. Adding an active fan on top of a radiator or log burner is a well known method for heating a room ...

The best air CPU cooler is the Noctua NH-D15 G2. This is a mammoth cooler with two of Noctua's latest and greatest fans. It's comparable to some liquid coolers, even larger ones, in our testing.