Cooling of Large Water Volume

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Lets say that one has a 4 thousand litres to cool. Do you guys think it will be more cost effective to use an aircon in the room, or conventional aquarium chillers?
 
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Well, the tank would be in a room that would require a 9000 btu aircon.

Obviously i do not want to waste money monthly on electricity unneccessarily, so what would be cheapest?
 

Kanga

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I would opt for the chiller Route, but thats just my opinion
 
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Chilling is probably a lot more accurate, but the cost implications in the long term might be an issue. I will probably add one of those twirly extractor fan thingys on the roof.
 
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just t5's and t8's, so not muxh heat will be generated by the lighting. All pumps will be external as well. I am worried about the ambient temperature doing funny things.
 

Kanga

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those twirly thingies are great Doberman
 
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Maybe use the twirly thing and the chillers in conjunction?
 
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Well I tried tha aircon thing but to be honest it does not work too great and cost abour R250 to run for the month and you still get temp swings. I would go the chiller route and have it outside so it does not heat up the room - also a twirly would help a bit...
 
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That is the issue with the aircon, it doesn't allow "pin-point" accuracy with regard to temperature.

The room will be insulated, with polystyrene on the walls, and "think pink" stuff in the roof. I also reckon that a water volume of somewhere between 4 and 6 thousand litres will take a while to rise/fall in temp.
 
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Yip it will be less affected by day and night at 6000l but over a year a chiller will work out cheaper - IMO
 
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I think i would need 2 or 3 of those chillers that NP sells.
 
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The AM titan 4000 uses 1500w

Recommended or aquariums up to 4000l
 
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If practical,evapourative cooling,only downside is auto top up a neccesity and method to move air(vent and fans,twirly thingy)must be to outside of room(need duct)
 

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So if you use two of them, it's 3kW.
3kW x 24hours x 31days = 2232kWH
At about 50c / kWH the worst case cost would be about R1,116 / month.
But ofcourse it won't be on all the time. Above is worst case.
 

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