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Antec > 
Item#: N82E16835209080

Antec KUHLER H2O 1250 Water/Liquid CPU Cooler 240MM

  • Pump Dim. 4.7" x 2.0"
  • Radiator Dim. 11.0" (H) x 4.7" (W) x 1.1" (D)
  • Fan Dim. 120 mm
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Learn more about the Antec KUHLER H2O 1250

General

Brand
Antec
Series
H2O 1250
Model
KUHLER H2O 1250
Type
Liquid Cooling System

Pump

Pump Dim.
4.7" x 2.0" / 120 mm x 50 mm (Fan+Pump)

Radiator

Radiator Dim.
11.0" (H) x 4.7" (W) x 1.1" (D) / 280 mm (H) x 120 mm (W) x 27 mm (D)

Fan

Fan Dim.
120 mm

Features

Features
The Antec KUHLER H2O 1250 provides maximum-performance liquid cooling for your CPU and delivers best-in-class performance in a quick, easy-to-install package.

Unlike traditional liquid cooling systems, this self-contained unit comes prefilled and requires no maintenance.

The dual 120 mm Pulse Width Modulation (PWM) fans are fused with directional blades that channel air through the radiator for optimal cooling Two 120 mm voltage controlled (PWM) fans ensure quiet, efficient cooling while the 240 mm radiator maximizes cooling surface area to dissipate heat from the highest performance CPUs on the market.

In addition to an extra long radiator, two extra large pumps work in unison to rapidly circulate coolant through the KUHLER H2O 1250.

The unit is even covered by Antec's renowned AQ3 three year warranty for parts and labor.

Lastly, the included Antec Grid software helps you monitor and control the Antec KUHLER H2O 1250's performance and allows you to customize its stylish RGB LED.

Designed to unlock the maximum potential of your CPU, the Antec KUHLER H2O 1250 delivers exceptional cooling when you need it the most.

Quick Info

Warranty

  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years


Customer Reviews of the Antec KUHLER H2O 1250

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Showing 11 of 11 reviews - Clear Filters

  • Brent H.
  • 7/3/2014 2:41:38 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsAntec KUHLER H2O 1250 Water/Liquid CPU Cooler 240MM

This review is from: Antec KUHLER H2O 1250 Water/Liquid CPU Cooler 240MM

Pros: This is installed in my white NZXT Phantom 630 case with an Asus Sabertooth Z87 and two MSI Twin Frozr III Radeon HD 6950's also using the NZXT Hue RGB LED controller with it at the white setting. Changed the Antec logo to be white as well.. very impressed with the results.. on silent fan mode this will usually sit anywhere from 30c to 34c. if I crank the fans up to about 1700rpm it sits at 28c. Even under 100% Load my i5 4670k still doesn't deviate from it's idle temps.

Cons: Super big, can be a pain to install.

I had a few problems with this bumping into my 8pin power connector at the top of the motherboard so I had to carefully bend the wires on the connector to get it to fit.

DO NOT buy this if you have a mid size case.. the pump sticking off of the fan is about an inch away from touching the heat spreaders on my Corsair Vengeance ram.

1 out of 1 people found this review helpful. Did you? Yes No

  • Scott J.
  • 6/28/2014 6:22:48 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsAntec Kühler H2O 1250

This review is from: Antec KUHLER H2O 1250 Water/Liquid CPU Cooler 240MM

Pros: Much better design that typical self-contained single fan water coolers. Dual fans force hot exhaust up through the radiator. Water block contains LED's which change color, indicating the temperature of the CPU.
Software bundle includes Antec Grid which allows user to control fan speed and monitor internal temperature (Note: Temperature reading is the temp of the water within the closed water circuit, not the CPU).
Works well, keeps CPU nice and cool as advertised.
Must disable the Q-Fan control in the BIOS.

Cons: Size of radiator makes installation difficult. I had to buy a new case in order to be able to use this device (I was due to upgrade my case anyway, so this wasn't necessarily a con for me, but would be for others who are not planning on buying a new case). Check dimensions of the radiator against the potential mounting space before making this purchase!
Instruction manual is absolutely useless.
Fan cables are complicated & somewhat difficult to hook up properly.
Internal USB hub (male) required for software to work.
Tubing between the radiator & cooling block is too short, making installation all the more difficult.

Other Thoughts: This as my first water cooling system. The fact that it's a closed circuit makes it ideal for first-timers, though I plan on moving to more intricate/expensive cooling systems in the future.

Did you find this review helpful? Yes No

  • shahram a.
  • 6/3/2014 11:05:23 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

3 out of 5 eggsWorst installation, soooo loud

This review is from: Antec KUHLER H2O 1250 Water/Liquid CPU Cooler 240MM

Pros: - Cools as well as H100/105 bullpark and I paid 55 after rebate for it.

Cons: -Worst instalation!!! This thing shouldve not made it to final design, look at the manual here are the things can go wrong while installing:
1) the back plate has super loose screws that can fall out.
2) the intel/amd holder has a moveble part, it will move to AMD side while your putting on the heatsink
3) the screws that hold the cooler in place are not mounted to the bracket, they can easily come off.

Antec simply doesnt care for user exprince, just for this I will vote with my money and never buy antec again.

- this thing is LOUD my h105 at full load is quiter than this thing at 50-60%

Other Thoughts: This cooler performs in bullpark of other dual rad coolers , its significantley louder than anything corsair has made in past year and the fan/pump design makes it prone to failiture.
Corsair gives you 5 year warranty atlease, these guys dont.

If i paid a penny over 60dollars I say its not worth it.

I simply had horrible exprince with it, something I didnt have with corsair or thermaltake using their liquid coolers.

Not worth a penny over 60 dollars.

0 out of 1 people found this review helpful. Did you? Yes No

  • Gaelen K.
  • 6/2/2014 4:02:16 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsIt's Sooo Kuhl!

This review is from: Antec KUHLER H2O 1250 Water/Liquid CPU Cooler 240MM

Pros: Very Cool. Keep my Intel 4930 at 28C most of the day. It has peaked at 40C, but that was on a warm afternoon playing Crysis 3 for several hours. It cooled down very quick.

Cons: The fan and cpu block wiring could have been a little better thought out; it can leave a new build feeling a bit messy.

Other Thoughts: The installation of this cooler is nowhere near as hard as some to the reviews make it out to be. Just use a screw driver, not your fingers.

The interface/fan control is Antec-quated. - Har har.

Did you find this review helpful? Yes No

  • Stephen M.
  • 5/22/2014 6:13:13 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsVery Nice

This review is from: Antec KUHLER H2O 1250 Water/Liquid CPU Cooler 240MM

Pros: Keeps my FX-9590 at F AND 30C under regular usage with an 80F ambient temp.

Cons: Install was a task but its well worth the pay off. Installed in a Thor V2. (Remove the fins up top they pop out and buy longer screws that fit in the rad )

Did you find this review helpful? Yes No

  • Michael F.
  • 3/24/2014 4:10:31 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsTo be honest

This review is from: Antec KUHLER H2O 1250 Water/Liquid CPU Cooler 240MM

Pros: Very Clean, Great performance, Super simple UI

Cons: Installation a bit tricky

Other Thoughts: Okay, Im going to be honest, this thing is awesome
I have antecs DF-85 Case, and my case is a monster so this cooler is not to big, but a bit to small, but with some use of the provided extra brackets they send you it went it perfectly :)
Now the people saying the UI sucks....yes it looks terrible, but Is designed to be simple, like extremely simple, which is a plus
All in all this cooler is amazing
If you get past the pain of the install then this cooler is awesome :D
I highly recommend
And anyone who builds there own pc knows that you come across problems and that's half the fun of it, making sure stuff fits in and build your beast up :)

1 out of 1 people found this review helpful. Did you? Yes No

  • Raeann M.
  • 2/17/2014 7:50:55 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggshuge

This review is from: Antec KUHLER H2O 1250 Water/Liquid CPU Cooler 240MM

Pros: keeps my 8350 around 28 degree's on normal stress just a heads up make sure your case has plenty of space this thing is so huge had to mount it outside my case lol no joke

Cons: led in the fans would've been cool

Other Thoughts: would've been cool to be able to have led in the antec symbol do patterns or a pulse or something lol just changing it's color is boring

1 out of 1 people found this review helpful. Did you? Yes No

  • John B.
  • 1/26/2014 2:29:31 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggs

This review is from: Antec KUHLER H2O 1250 Water/Liquid CPU Cooler 240MM

Pros: Keeps a 5Ghz 1.6vcore FX9590 Prime stable at 75c, with two extra fans as a push/pull setup.

That should say enough about how good of a cooler this is.

Cons: What a pain to install. The locking mechanism on the waterblock is awful. Beyond awful. It would unlock while I would be positioning over the chip, with two screws in it. Have to unscrew it again, lock it back in place, and try again.
After doing that about 5 times the stars aligned and I got it on properly.

The Antec software has an ugly GUI that looks like they stole it from an early 2000's OEM overclock tool. But it's functional.

Other Thoughts: Besides the terrible bracket lock, this thing is amazing.

The only step up from this would be an open loop system.

4 out of 4 people found this review helpful. Did you? Yes No

  • STEPHEN W.
  • 1/6/2014 9:43:21 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsBest cooler for Bulldozer outside of open loops

This review is from: Antec KUHLER H2O 1250 Water/Liquid CPU Cooler 240MM

Pros: 2 pumps makes it last longer w/o fail.
Neat LED.
Tubing is HQ.
Keeps fx 6200 4.3ghz under 55C at full load on silent mode.
Software that took 10 minutes in photoshop.
Black with white fans matches my color scheme nicely.
$80 because of rebate.
Software window hitbox actually matches the oval shape.
3 year warranty.

Cons: Can not swap fans. (Knew this buying it but it would have been nice anyway)
The software looks like a custom HUD in need for speed underground 2. It's not even AA'd.
If something fails you need to RMA whole thing.

Other Thoughts: When I plugged this in to my remaining USB 2.0 header on my motherboard and started up, it did not recognize the cooler existed. I had to go into bios and reset my USB config. It detected it with no problems after that. It was probably my motherboard's fault but who knows.

2 out of 2 people found this review helpful. Did you? Yes No

  • Kevin L.
  • 1/3/2014 4:01:45 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsworks great

This review is from: Antec KUHLER H2O 1250 Water/Liquid CPU Cooler 240MM

Pros: cools cpu really good

Cons: really hard to put on

0 out of 1 people found this review helpful. Did you? Yes No

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Item#: N82E16835209080
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