Two choices: 1) Airplex evo 240 Two 120mm fans Shrouded with holes to attach fans 55 euro pic: http://217.172.178.216/prodimg/apevo/ape240total_500.jpg Description (google-transed): Airplex - one of the best heat exchangers at the market - one continued to improve. With airplex evo the desires of many customers are met. The heat exchanger is manufactured from copper tubes and possesses most modern lamellas with a 3D-Struktur, whereby the surface of the lamellas is increased. In airplex evo threads are integrated for the assembly at the mounting plate and the exhausts. The housing possesses an integrated air pre-chamber and protects the lamellas now reliably against damages. It is manufactured from galvanized steel sheet and improved additionally with a powder coating. The connections could a G1/4 "thread and thus with arbitrary connections to be provided. It was paid attention special to an extremely compact design. Airplex evo the 240 is prepared for the assembly of two 120mm exhausts. 2) Mora KA Three 120mm fans Not shrouded, not with holes to attach fans to 49 euro Pic: http://www.cooling-store.de/csshop/shop/ProdukteBilder/34_gr.png Description (also google-transed): Mora KA: the Mora KA is as Highend heat exchanger for current CPU's and the next generations of processors recommended. The connection of copper queue and black coated aluminum lamellas exhaust the warmth very efficiently to the ambient air. Dimensions: approx. 395 x 134 x 43 mm, black aluminum lamellas, bent ports (10 mm). Weight without water: approx. 700 gram. Ideally to the installation into the Towerdeckel, in addition, for assembly on the Case. Okay, so which one do I take (baringin mind that I won't buy a eheim 1250 but a Hydor L20 (600l/h or so))? I've always wanted a rad with 3 fans but what's the performance? If the performance of the Airplex is as good or even better as the Mora then I take the Airplex, and with the shrouding and stuff...I really can't decide!
Well without any kind of history or specs on these radiators from any companies id would have to say that you wont see much of a difference between the 2 like maybe +/- 1-2c.....I would go with the one that would fit your needs *case, budget, ect....* the best....
Budgetdifferinces aren't too worry about, I could even ask the 5 euro to my mom if I needed. The case is big enough for the Mora. The only thing that worries me a bit is the no-shrouding (= no fanholes), so I guess I'll go with the Airplex, which according to Cheese is also the most prettiest one , but still not certain...
The rads in question both lack tanks. This insures a higher pressure drop. Does allow lower cost as well however. The Abyss from OCPC is a much better rad, but also vastly more expensive. Have you given any thought to the use of a heater core? This would offer both higher preformance and maintain low cost. There are a huge number of cores to pick from, easy to find one the right size for any case, large or small. The issue of the heater cores looks can be addressed by polishing or painting. If painted shrouds are used the core pretty well disappears anyway, or plexi shrouds on a core polished or painted. Cores are more work. But you'd end up with a rad that is your own one of a kind and give you better performance.
It's too hard to find a decent heatercore in my region, else I'd certainly tried it . Thanks for the info about the tanks, what do they do exactly?
Well the rads you are looking at have one long tube that runs back and forth repeatedly and each of those 180 degree turns causes turbulence in the line & thus resistence to the flow rate. And as there is really only one line the speed of flow in that tube is higher which also increases resistence. A rad with tanks can be single, double or quad pass design, this just denotes the number of passes back and forth the water makes before exiting the rad. Fewer is better. Most rads are of the double pass design to keep the number of passes low while having both inlet & outlet at the same end. Yet these rads have more tubes per pass, can be up to 9 flat plate type tubes in some large heater cores going each way in a dual pass rad. Most have 5-7 however in a dual pass type rad. The water enters the rad and spreads out into the tubes for the first pass, the more tubes there are the slower the flow in each tube, allowing more time for cooling. Now when the tubes reach the other end tank they discharge the flow into the large tank. This allows the water to reverse it's direction with almost no restriction on flow at all. The cooling offered by a rad with tanks is better than a rad without tanks, they have more total tube surface than the tankless rad. And they have a far lower pressure drop than the tankless type rads due to the much lower speed of flow in the numerous tubes. Keeps the total system flow rate higher which is always a good thing. The only bad thing about the tank type rad is they cost more. A heater core I have is of the single pass type. It's size is 9 1/4" x 6 3/8" X 2" and it has 14 flat plate type tubes. The trick with a single pas rad is where to mount it so as not to have problems with routing lines due to the inlet and outlet being at oposite ends of the rad. But the big plus they offer is they have the lowest head loss of all. Hope this was of help.
