What chiller hp for my tank?

Discussion in 'Equipment' started by dragnflyjunk, May 29, 2011.

  1. dragnflyjunk

    dragnflyjunk Guest

    Hi guys,

    Haven't had a lot of experience with chillers. See a lot of opinions on hp for my tank but would like more input.

    57g Oceanic Illuminata
    approx 24g sump
    May also have sump support a nano 10g later down the line

    I hear 1/5 or 1/4hp is good enough?
    Is 1/8 or 1/10 also sufficient?

    I live in SF. Haven't had a real hot summer (yet).
    Tank controlled by Apex Lite and is set to shut MH off at 80F.
    Been getting around 80 a lot more now that summer is near.

    What temp should I keep tank to if want to keep SPS or LPS?

    Appreciate the input!

  2. JAR

    JAR Supporting Member

    if you live in SF you may be able to get away with aiming a fan at your sump water or tank water and let evaporation work to cool your tank.
    I keep my tank at 78 degrees like that with no problem.
  3. dragnflyjunk

    dragnflyjunk Guest

    Thanks for the posts... What's ecap? is that a chiller brand?

    I'm good with the idea of a fan... but (they say) if I'm going to expand into SPS or LPS... best to get a chiller... wondering if anyone is heavy into SPS or LPS who lives in SF who never had the need for a chiller or just used fans to keep their water at 78...

    My MH are off and only the actinics are on and it's already 78.8 and easily goes to 79 ...

    Would love to hear more thoughts :)
  4. Coral reefer

    Coral reefer President

    Evaporation may work. 1/10 hp probably will do it. Bigger is always good if you got the cash...
  5. Coral reefer

    Coral reefer President

    Sorry. Stupid auto spell. Meant evap, like evaporation. I'm in sf, my tank gets up to 82 sometimes with no chiller or fans, haven't seen it higher than that really, and no worse for the wear. Honestly though, I'd like to have a chiller just to make sure. Haven't bought one mainly due to cost.
  6. dragnflyjunk

    dragnflyjunk Guest

    Oh gotcha :)

    So in your opinion even if it gets to 82, your corals do fine?
    I know some ppl who've had a lot of their corals die last summer when the heat went up to the 90's in the city... which meant that the tank could've easily gone to 82 or maybe a lil more if no fans...

    What's the ideal temp for corals? At least from a pure academics standpoint?

  7. iani

    iani Guest

    It is really setup dependent on how hot your tank will get. I lived in SF until last year and my chiller definitely came in handy. Even SF will get a week of 90 something degree temperature a year. In my setup I could not get by with just a fan.
  8. FunGuy

    FunGuy Guest

    As some people have said, fans may help. Other factors contribute to the importance of a chiller - which part of the city, how well your apartment holds heat, if you have AC, etc.

    If you're going mainly SPS, even in the city, I'd get the chiller for sure. It should rarely turn on as the city rarely gets up to the 90s. If it does though, you really don't want to lose all your SPS due to a day or two of heat. Unfortunately when it hit the mid to upper 80s recently, my apartment holds heat well and even with T5s, the tank overheated. Lost all my SPS. I got a chiller and it rarely turns on, but I have peace of mind I won't lost my corals due to heat. I'm using a 1/10hp chiller for my 65. Some folks may have larger chillers for such size tanks. We haven't had a major heat wave since I got my chiller, but I expect it to work well enough to cool the tank.

    Good luck.
  9. dragnflyjunk

    dragnflyjunk Guest

    Thanks for the advice guys!

    Yeah the hot days in SF are few and far between... but man, when it does hit, it hits hard... and my place does keep the heat in once it sets in... no AC unfortunately (I'm in the city! who needs AC =p )

    But yeah... scouring places to get a good deal. Not sure if a temporary stop gap would be a cooling fan... but my tank is a 57g w a 25g sump... and thinking of adding another 10g later that the sump supports... so assuming the basis of any chiller is the total water quantity then perhaps I should keep an eye out for a 1/6 or a 1/8 hp...

    Thanks again!
  10. seminolecpa

    seminolecpa Past President

    1/10th should be more then fine for a 57g IMHO. I used to run a 1/10 when I lived in Dallas on a 58 Oceanic without any problems and it gets way hotter there then here.
  11. dragnflyjunk

    dragnflyjunk Guest

    When you say 1/10 is more than enough for the 57g... should I take into consideration the sump volume as well? If I do, it should be total of 85g or so... If that's the case, will a 1/10 still be ok?

  12. Coral reefer

    Coral reefer President

    I think so
  13. siokoy

    siokoy Supporting Member

    here's a link to Teco's Web site, they have a sizing calculator that will give you an estimate what chiller is suited for your needs.


    Based on the size of your tank you only need TR-10 it's a 1/10 HP.

    Attached files /attachments/sites/default/files/TR-10.PNG
  14. 99sf

    99sf Guest

    I used a 1/10 HP chiller on my 60 gallon display tank (29 gallon sump) in southern California with no problems. It was easy to run the flexible tubes for the chiller pump through the sump... slightly more planning to move water from the chiller up to the display tank.

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