Quote Originally Posted by hwlabs View Post
I beg to disagree, miguelD.

There is no need to contend with an accepted scientific fact nor omit it.

We've made it rather clear that even if brass does have a lower conductivity, the thickness of the tube walls and even the solder material is still far thinner than that of the total tube-fin material employed in an Aluminum radiator.

Koolance was the one who brought up the idea of oxidation, which is naturally occurring, and mentioned it was a factor for retarding performance. We simply told them that if there is any such impact, it would be negligible.

What Koolance simply did was showed a scenario wherein its heat exchangers performed well enough to prove its self-serving assertions while conveniently omitting the fact that such operational conditions, i.e. air velocities of 5m/sec are inapplicable to PC watercooling.

We did mention in our open letter to them that:


Even after reading this, they completely ignored the critical operating parameter and went on with their tirade anyway.

The noise generated by such a fan would require you to keep your PC in an acoustically insulated cabinet or its own room.

Just the same, what Koolance did successfully highlight was the fact that the GTStealth core design will perform to the levels of a two-row radiator. But this is besides the point, as radiators like the TC PA's were designed primarily for a specific application.

Notice the fact that their PR material is beginning to subtly drift away from PC radiators and dipping itself to purely HEAT EXCHANGERS which would clearly suggest the fact that selective PR spin is in effect.

Design does play an important role in radiators. You design according to what you want your radiator to perform under certain operating conditions. Our radiators are used in a host of applications related to PC watercooling and beyond which would require more capacity and compression. Thus they were designed as such.

Supposing you do give us 5m/sec of airflow to work with, Marci/Cathar, we do have a platform that would easily outperform the PA's at half the size.

Now if Koolance wants us to design a heat exchanger for use under automotive applications, then all they're doing is preempting one of our development programs. But I do recall their market to being one focussed on PC cooling.

Now I do wonder why they've chosen not to include the GTX240 in their tests. Our industrial radiator designs have shown our two row radiators to outperform 5-6 row units but that is of course not as relevant to the PC market given the specific operating parameters.

However, don't ever think we're sitting on our laurels. There are distinct advantages to not relying on a sub-contractor to do your engineering and manufacturing work for you.

This is an easy answer. Because the GTX which is more optimized for higher velocity fans would of kicked the living crap out of that test. As well as the Thermochill HA series radiator.

But to the forum HWlabs! Its always a win on our side when a vendor decides to pop an account and join us!


At anyrate, WHO realisitically runs there coolant at 85C??


Offtopic: can you give us any earily info on your RXN series? Im really interested in your evap cooling scheme. If i recall it was given up on the avation industry because it was fragile in wartime. ??