MAG24 Heat

[FibberMcGee]

Hey gang quick question for anyone using a Mag24 drive in their sump. I have just added one to drive my new skimmer and I have noticed a 5 degree jump in tank temp. 79.5 to 84.5. Has anyone else seen this kind of increase when using this pump. Specs 125 AGA with a 100 gallon sump. Thanks in advance.

 

[mavgi]

you have a luck that you have 100 gallon sump if not it was more heat. my mag18 increase 5 degree in the tank and i use 50 gallon sump on 120 gallon tank this why i didn't bought the mag24 .

 

[sjm817]

Mag24 power rating is 265W. Even if its using less that that, its a lot of heat.

 

[gpep419]

yup sold my 24 cause it was running my tank at 88-90 deg.
on a 75 with 50 sump. i have an 18 now and thinking of going to a 12 or drilling my sump for a 24 external.
good luck

 

[sjm817]

75 with 50 sump..an Eheim 1260 would be nice. If you want to go external, use a true external that is air cooled. no heat problems.

 

[FibberMcGee]

Thanks for replies guys, may have to move the pump outside the sump. Man what a pain the a@@. I don't want to have to run a chiller on the system just because of this pump.

 

[sjm817]

Others may disagree with me, but you will still have a problem. The mag pump is water cooled. Its is cooled by the water pumped through it. Internal or external, that does not change. It may radiate a small amount to the air when run external, but it is still water cooledd in the end. If you pointed a fan at it, maybe a bit better. You are better off with a true external air cooled pump.

 

[BeanAnimal]

Your not going to save much by moving it outside. It will still add a considerable amount of heat. Most "powerhead" style pumps are water cooled and give off very little heat via the outer casing.

 

[8BALL_99]

If Heat is any kind of issue dont use a Mag pump.. They put a Ton of heat into the water.. I changed all mine out for Eheims. It made a huge difference in my temps.. To bad Eheim doesn't have a pump as large as the mag 24. If you plan on going External you might want to look at the Sequence snapper.. moves 2500 gph at only 99 watts compared to the mag 24s 2400 at 265 watts....

 

[FibberMcGee]

Thanks guys for the tip never thought of heat transmittion thru the pump that way, I think external is still the way to go, but I lke 8ball's idea of the Sequence pump. Now back to the drawing board and plumb the darn thing. Thanks again.

 

[musky1963]

May I ask why you would need that much gph for just a return?

 

[jacmyoung]

<a href=showthread.php?s=&postid=10073256#post10073256 target=_blank>Originally posted</a> by musky1963
May I ask why you would need that much gph for just a return?

I thought it was for a skimmer? Of course the question is the same why Mag24 for what skimmer? A 256W pump is a 256W heater.

 

[ccoral]

why not use two smaller pumps that consume less energy. two 600 gph pumps 25 watts each plus it acts as a back up two is always better than one when it is running the life support of your system

 

[gpep419]

yeah after i posted that i did some more recearch and they are all right it will still be pretty hot. but i have always had good luck with mag pumps

 

[anothermineral]

I have a Mag24 in a 30G sump as a return pump for a 40G and a 55G tank. My tank stays between 78 and 80 depending on the time of day.