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Helpful ReplyDIY passive rad advice.

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austin86
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2022/09/20 08:03:58 (permalink)
I have so much room in a PC case I'm putting my 440bx system in that I could fit a big passive rad in it and use the low RPM case fans to cool it. But I'm having a hard time finding the needed materials. I'm cooling about 100w of heat.
Dose anyone know were I could get small finned copper tube here in the US or extruded aluminum like seen here but made of copper?
https://www.guru3d.com/articles-pages/alphacool-ready2go-stacker-(passive),4.html
 
Or a heat exchanger with very wide fin spacing?
 
Thanks!


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bill1024
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Re: DIY passive rad advice. 2022/09/20 14:19:26 (permalink)
How about a piece of baseboard heating element, shop around for sizes and price. Comes in 3/4 and 1in
https://www.supplyhouse.c...QGDEAQYASABEgKg0fD_BwE

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austin86
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Re: DIY passive rad advice. 2022/09/20 15:32:52 (permalink)
bill1024
How about a piece of baseboard heating element, shop around for sizes and price. Comes in 3/4 and 1in
https://www.supplyhouse.c...QGDEAQYASABEgKg0fD_BwE

that might actually work!


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bill1024
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Re: DIY passive rad advice. 2022/09/20 15:39:20 (permalink) ☄ Helpfulby austin86 2022/09/21 08:03:08
PSA: The fins on the baseboard element are sharp, keep that in mind when working with it.
You can remove extra fins a few at a time by gently twisting back and forth while pulling them off.
 

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austin86
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Re: DIY passive rad advice. 2022/09/21 08:00:18 (permalink)
bill1024
PSA: The fins on the baseboard element are sharp, keep that in mind when working with it.
You can remove extra fins a few at a time by gently twisting back and forth while pulling them off.
 


Thanks for the info. I'm sure they're sharp like any other acr or heat exchanger. so how would the other fins react to fins being removed? do they settle or stay in place ?  I thought about getting a 6ft one and cutting it to save money.
post edited by austin86 - 2022/09/21 08:15:16


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bill1024
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Re: DIY passive rad advice. 2022/09/21 08:53:12 (permalink) ☄ Helpfulby austin86 2022/09/21 11:24:39
They will stay in place We have to cut them often to make them fit where we need to
They do spin around easily. Not really hard to work with.

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austin86
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Re: DIY passive rad advice. 2022/09/21 11:26:26 (permalink)
bill1024
They will stay in place We have to cut them often to make them fit where we need to
They do spin around easily. Not really hard to work with.

Thanks for the info. I might pick up a 1/2 one and make some custom rads with them.I have a few spots in the case that they would be put.
 


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bill1024
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Re: DIY passive rad advice. 2022/09/21 13:33:35 (permalink)
I have never seen a 1/2 inch baseboard element don’t think they make it
Also if you have to cut in the middle of the element you can use tin snips and pliers to get the fins off. Maybe able to hack saw it but the copper is thin wall and may go out of round.

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austin86
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Re: DIY passive rad advice. 2022/09/23 09:00:39 (permalink)
bill1024
I have never seen a 1/2 inch baseboard element don’t think they make it
Also if you have to cut in the middle of the element you can use tin snips and pliers to get the fins off. Maybe able to hack saw it but the copper is thin wall and may go out of round.

https://www.supplyhouse.com/Slant-Fin-102026040-E-50-1-2-Baseboard-Element-4-Length
I have stripped a lot of ACR and heat exchanges I do know all to well how they can fly a part lol. I was going to use a hack saw and players to removed the fins then solder a brass fitting on the inlet and outlet one. the case has so much room I should be able to fit them in a 2x2 or 2x3 arrangement.


Asus CSM b660, 16gb 3200mhz ddr4, 12100f, 980ti
X58 Classy3, 6gb 2000mhz cl8 ddr3, 990x, GTX285 sli
Abit BX133 raid, 256mb PC133, 1ghz Piii, voodoo1+MX440
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