installing fans into canopy?
- Thread starter kase
- Start date
MarksReef
New member
It all depends on where the heat source is coming from.
If it is coming from your halides, 1 in and 1 out would make sense.
If you have a lot of pumps and power heads you'll want to have them both blow across the top of the water for evaporation purposes. I have a large opening in the back of my canopy so I have both fans blowing in across the water with the hot air exiting out the back. Having the fans blow across the water causing evaporation is the most affective way to cool the water.
I didn't need that much cooling so I located my fans slightly higher then the water line as to not over evaporate unnecessary.
If it becomes very hot in my house, I put a fan on my sump blowing directly at the water and it will cool down in no time.
If it is coming from your halides, 1 in and 1 out would make sense.
If you have a lot of pumps and power heads you'll want to have them both blow across the top of the water for evaporation purposes. I have a large opening in the back of my canopy so I have both fans blowing in across the water with the hot air exiting out the back. Having the fans blow across the water causing evaporation is the most affective way to cool the water.
I didn't need that much cooling so I located my fans slightly higher then the water line as to not over evaporate unnecessary.
If it becomes very hot in my house, I put a fan on my sump blowing directly at the water and it will cool down in no time.
Blugobi
New member
I have a enclosed aluminum hood with 2x175 and 4xVHO 110w with two 80mm fans blowing..one in and one out. It works very well. I tried to have them both blow out...but with having the glass on my hood, makes a pretty tight seal...one in and one out is best, as long as they are the same type of fan with the same rpm's...if your hood dose not have glass then I suggest you use "Marksreef" idea.
As long as one is blowing out you should be OK.
What you don't want is to pull the hot humid air from your tank over the lights if at all possible.
One of my fixtures is built as a tunnel, air blows in at one end, out at the other. with a sheet of acrylic on the bottom. My newest came with the fan pulling air out. I need to reverse it ASAP.
What you don't want is to pull the hot humid air from your tank over the lights if at all possible.
One of my fixtures is built as a tunnel, air blows in at one end, out at the other. with a sheet of acrylic on the bottom. My newest came with the fan pulling air out. I need to reverse it ASAP.
kase
New member
i have an open back canopy, the heat is coming from the MH and a heateroff now) in sump, but it set at 79, my mh(bulb/reflector) is running lenght and the reflector drop down 5" so the incoming fan is hitting the reflector.
if i tilt the incoming fan dowN(blowning on the surface of the water will it cause more evaporation ? it should cause wave(surface movement) which could be pretty kool.
i had the canopy fully open yesterday with out the fan on and the tank got up to 82-84 and the room temp was at 76. a lil too hot, all the coral was open(like the nom) running the fans today( one out, one in)
is droping 2-6(79-80) degrees that hard?
if i tilt the incoming fan dowN(blowning on the surface of the water will it cause more evaporation ? it should cause wave(surface movement) which could be pretty kool.
i had the canopy fully open yesterday with out the fan on and the tank got up to 82-84 and the room temp was at 76. a lil too hot, all the coral was open(like the nom) running the fans today( one out, one in)
is droping 2-6(79-80) degrees that hard?
