Canopy Ventilation

[2pts]

I have a 3' square tank with canopy. I run 2 150w mh, 2 double strip T5's.

I struggled with my temp for a bit.

Out of the top I cut a 20" by 10" rectangle, covered it with that black gutter guard mesh. I also cut in a 4" square fan which blows air up and out of the canopy, it runs 24hrs although now I'm thinking I should turn it off at night.

I have 2 - 6" clip on plastic blade fans mounted inside the canopy, 1 directed at the water surface. They are timed to come on when my 1st T5 comes on, and off when my last light turns off.

I recently accidently turned off the square fan for 2 days, my temp went upto 82 degrees.

Otherwise my temp drops to 77.1 at night, and maxxes out at 78.6 in the afternoon.

[Dez]

Originally Posted by lastlight

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?

Hey Brett, I never thought about make up air....does it wreck my furnace? I guess my house is a big vacuum then. I guess I could run another 4" duct, but then rodents will get into my house....wouldn't want that.

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.