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can someone explain diff between a rad. and heater core?

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tft

Member
Joined
Feb 22, 2002
Location
R.I.
radiator is bigger. lol. Thats pretty much all I know when it comes to its use in a computer.
 

Avatar28

No, I showered
Joined
Feb 27, 2002
Location
Nashville, TN
Actually, there isn't one. A heater core is just a type of radiator. Here's the webster definition.

one that radiates : as a : any of various devices (as a nest of pipes or tubes) for transferring heat from a fluid within to an area or object outside b : a transmitting antenna

In this case, we're interested in definition A.
 

Koooler King

Member
Joined
Nov 21, 2001
Location
North America
Lt. Max said:

A radiator and heater core do essentially the same job, they transfer heat from a liquid to the ambient air. As for design and performance in the automotive realm, a heater core is compact with a very tight fin spacing and needs a high performance blower to get air through it effectively. On the other hand, a radiator is much larger, with more open fin spacing and flows air better and can use a larger axial fan (or 2).

It is a trade-off of size vs. air flow vs. performance. Ultimately, the air flow is almost always the restrictor on performance, hardly ever is the water side flow a restriction for cpu cooling. The questions to answer: 1) how much room do you have for either heat exchanger, 2) how big / loud of a fan or blower can you tolerate?

Good Luck.

Koooler King
 

KingB

Member
Joined
Jan 29, 2002
Location
Calgary, Alberta
The heater core is normally used in a car to transfer heat from the engine into the air used to heat the interior of the car. It is the same principle as a radiator but like tft says "the radiator is bigger".

We use them because they are relatively cheap, they are relatively small and they are effective in dissipating heat from a computer water cooling system.
 

Koooler King

Member
Joined
Nov 21, 2001
Location
North America
Lt. Max said:

A radiator and heater core do essentially the same job, they transfer heat from a liquid to the ambient air. As for design and performance in the automotive realm, a heater core is compact with a very tight fin spacing and needs a high performance blower to get air through it effectively. On the other hand, a radiator is much larger, with more open fin spacing and flows air better and can use an larger axial fan.

It is a trade-off of size vs. air flow vs. performance. Ultimately, the air flow is the restrictor, hardly ever the water side flow a restriction for cpu cooling. The questions to answer: how much room to I have for either, how big / loud of a fan or blower can I tolerate?

Good Luck.

Koooler King