Presentation
The Noiseblocker Cool Scraper was sent along with its little brother, the Cool Tower. It looks very much like the Cool Scraper: technology, installation system, and material. The only difference is its size. It is designed to work with an 80-mm fan. It is sold with the famous S4 (the fastest fan in the 80-mm Noiseblocker range).
The fan is installed with two piano strings attached to the blades. One can also use two on each side, so as to increase performances.
Installation
The installation process is identical to the Cool Scraper, there is nothing to add.
Measures and results
We tested the Cool Tower with three different 80-mm fans (1 Noiseblocker and 2 Papst). Like its bigger brother, some of the voltages were too low and it was impossible to gauge the temperature. :
Appraisal
With the number of fans tested with the Cool Tower, we clearly show the connection between a silent fan and the performances provided. The slower it spins, the more silent it is. The airflow also diminishes with the speed as well, naturally, as its performance. The point is to find the best compromise. The S-4 provided is the most efficient. It spins faster, even with a lower voltage. It provides very good performances with a moderate noise level, but is less efficient than the Papst for comparable dB(A). There is a considerable 10°C gap at 12V in full load between the most powerful and the weaker fan. So you can see that the choice of fan has important repercussions.
Like its larger brother, the supertube provides very good performances and this Cool Tower is also a very good choice. It is not quite as good as the Cool Scraper, but it is also less bulky and is only 80 mm high!
