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#1
12-27-2010, 04:44 PM
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Ideas I had were a grill on toop for heat to rise up through, fans on each side, pushing and/or pulling. Fans on sump can be used as well, although I have some Zoomed 4 fan block on there now, and I might as well blow on the sump when I walk by...
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Brad 
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#2
12-27-2010, 04:58 PM
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I couldn't vent it directly outside so I have it
Vented to my sump pump room in the basement which is controlled by a dehumidistat. This might not be possible for you. With fans, you are pumping more humidity into the house. Last edited by Dez; 12-27-2010 at 05:10 PM.
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#3
12-27-2010, 05:02 PM
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Dez, your build gave me the idea of using fans only. Is your tank top fully enclosed?
I don't mind the extra humidity, my daughter has airway issues and needs extra moisture in the air (I've built a Biocube in her room just for that  )Do you use fans on sump and tank, or just one place? I suppose I could vent the stand outside along the floor if I had to, but not sure it's an issue. My house is pretty old, so it will likely fall down long before the moisture gets it -lol Also, what fans do you use?
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Brad Last edited by Aquattro; 12-27-2010 at 05:05 PM.
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#4
12-27-2010, 05:06 PM
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When I used to have the canopy on the tank I had a fan at one end of the canopy blowing on the length of the water surface and a fan on the other end of the canopy (at the back) sucking the air out. Worked well. Also kept a fan blowing on the sump as well.
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225g reef
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#5
12-27-2010, 05:08 PM
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Oh Des I thought you were pushing that air outside. Any reason you don't have another fan in the sump room that then pushes all that air outside? With the dehumidifier I'd have thought the sump room would get crazy hot. Do you at least vent the hot air from the unit outside?
I was planning to copy you but it seems I didn't fully understand what you were doing.
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#6
12-27-2010, 05:10 PM
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My Canopy is quite airtight except for one fan drawing air from the office into the canopy. Then I have a 4" dryer vent pipe going from the other side of the canopy all the way into the basement, at the basement end there is an inline fan on that dryer vent sucking air into the basement. I have a bathroom fan hooked to a dehumidistat to vent the humid air directly outside. Then fans only on the sump in that same room in the basement. With my last house, the humidity rotted the house away, this is why I made my canopy air tight. Hope this helps.
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#7
12-27-2010, 05:19 PM
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Oh I got it. dehumidistat not dehumidifier. So I did understand!
How are you allowing makeup air to enter the house Des? I'm concerned about that negative pressure and the furnace etc. I was going to run another 4" duct from the same window that is essentially just an open pipe leading into the fish room. Also where should inlet air and outlet be positioned? I think humid air sinks so shouldn't the new air vent be up top and the outlet on the bathroom fan be near the floor?
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#8
12-27-2010, 05:32 PM
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Dez, how many degrees will your fans pull? Right now, without fans or venting in the canopy, I can raise the temp from 77 to 84 in less than 6 hours. I'm wondering if fans will lower that enough without the chiller...
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Brad
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#9
12-27-2010, 05:58 PM
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#10
12-27-2010, 05:56 PM
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As long as I don't die as a result of negative air pressure I guess I'm okay...it's been a little over a year like that. I think normal bathroom fans in houses are hooked to the furnace fan to have it kick on when the bathroom fan is on I think.
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