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Fractal Design Celsius S24


Chief Broken Rig
Staff member
Mar 25, 2009
8,815 (2.70/day)
Fractal Design continues their tradition of expandable all-in-one liquid coolers with the Celsius S24. Bucking the RGB trend, they have instead gone for a more professional and sleek design that offers usable features instead of flashy LEDs. With good performance and noise levels, it manages to stands out in a crowded market.

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Last edited by a moderator:
Mar 31, 2010
426 (0.15/day)
System Name PHaS3XIV
Processor AMD Ryzen 7 1700
Motherboard MSI X370 Gaming Plus
Cooling Corsair H105 (AM4 Retention yay!)
Memory 16GB Corsair Vengeance LPX DDR4 2400 C14 @ 2667 C15
Video Card(s) Sapphire AMD Radeon RX 580 8GB Nitro+ Special Edition
Storage Many = 12TB + Crucial MX200 SSD
Display(s) Dell P2414H + Samsung 5 Series 32" LED FHD TV
Case Fractal Design Define R4
Audio Device(s) Creative Sound Blaster Recon3D PCIe
Power Supply Corsair RM750
Mouse Logitech G500S
Keyboard Razer Blackwidow Ultimate
Software Windows 10 Pro x64
Benchmark Scores @_@
Great review, as always! Thank you :)

Sorry to point out - small edit: Page 4 - "Installing the Celsius S36 is very simple. "
Mar 18, 2015
196 (0.18/day)
Just a couple of minor picayune comments on the review itself:

1. The introduction's 1st few paragraphs are clearly quoted from a press release / advertisement ... and while the article starts with "From the Fractal Design website:", it's hard to tell where the promotional parts end and the review starts.

2. I didn't quite understand what is so unique about the fractal unit "integrated fan hub that uses concealed wiring to connect to the pump" tho not common among cheaper CLC units, Swiftech and EK accomplish this as well ... of course it's less of a big deal when ya have have the pump on the rad.

3. For those with some knowledge / concern with regard to the useful life of corrosion inhibitors in PC water cooling loops, (18 - 24 months) some info on how easy it as to augment adding such inhibitors or even changing coolant would be a welcome "wish list" part of these reviews.

OTOH, speaking to the product itself, I still have the basic issue that it doesn't cool as well as $37 - $45 Scythe Air coolers which are also quieter. The low flow pump and mixed metals are another reason I just would never "go there". The mixed metals things highlights the ish list item mentioned under Item 3 . If anyone has ever wondered what happens when corrosion inhibitors are not used or just reach end of useful life with aluminum rads / copper blocks, it's not perty (https://martinsliquidlab.wordpress.com/2012/01/24/corrosion-explored/). Have to wonder, especially with the LED Fad, why vendors haven't all gone w/ clear acrylic blocks and colored coolants on CLC type coolers. Looking at the pics in that link, gives on possible answer.


Staff member
Oct 6, 2004
46,245 (9.46/day)
System Name Daddy Long Legs
Processor Ryzen R7 1700, 3.9GHz 1.375v
Motherboard MSI X370 Gaming PRO carbon
Cooling Fractal Celsius S24 (Silent fans, meh pump)
Memory 16GB 2133 generic @ 3066 C18
Video Card(s) MSI GTX 1080 Gaming X (BIOS modded to Gaming Z - faster and solved black screen bugs!)
Storage 1TB Intel SSD Pro 6000p (60TB USB3 storage)
Display(s) Samsung 4K 40" HDTV (UA40KU6000WXXY) / 27" Qnix 2K 110Hz
Case Fractal Design R5 White Gold edition + RGB lighting
Audio Device(s) Pioneer VSX-519V + Yamaha YHT-270 / sennheiser HD595/518 + Corsair Void RGB
Power Supply Corsair HX 750i (Platinum, fan off til 300W)
Mouse Logitech G403 + KKmoon desk-sized mousepad
Keyboard Corsair K65 Rapidfire
Software Windows 10 pro x64 (all systems)
Benchmark Scores Laptops: i7-4510U + 840M 2GB (touchscreen) 275GB SSD + 16GB i7-2630QM + GT 540M + 8GB
I've had mine for a while and couldnt get clear answers from support - does the pump in yours make an irregular rattling noise?

Its proved hard to record, but in a system with silent low speed fans its the loudest part, on auto and PWM settings