User Tag List

Informational! Informational!:  0
Likes Likes:  0
Page 1 of 3 123 LastLast
Results 1 to 8 of 22

Thread: Terrarium ventilation setup

  1. #1
    homer's Avatar
    Join Date
    Mar 2003
    Location
    Puyallup, Washington USA
    Posts
    679
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Recently, I got around to building a ventilation system for my 55 gallon terrarium. My goal was to include air from outside the terrarium. The humidifier was to remain a vital role as well. The key is to balance the effectes of fresh air and humidity. Here's the pictures for all you visual learners, while my rambling post follows.







    Here's what I did: glued a 12v CPU fan to a PVC "U" joint I had laying around. Connect the 12v wiring to a 9v adapter. I wasn't about to spend $20 for the cheapest AC-DC adapter out there, so I scrounged up a 120v - 9v 1000mA adapter I had in storage. Although the 12v-9v issue concerned me at first, I set the fan on a timer so it runs at 30-60 min intervals a few times a day. This way, its not running all the time and shouldn't run too hot from low voltage. So far, so good. [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile.gif[/img]

    The humidifier setup has already been explain HERE, so I won't go into detail about it on this post.

    The fan itself is outside of the terrarium, so moisture shouldn't have a negative impact on the electrical components.

    Results From the pictures, you can see the locations of the 1st and 2nd temperature / relative humidity (RH) gauges. Temperature decreased at the 1st gauge by 1 degree F over the course of the trial (33 minutes). 2nd gauge gained .5 degrees. RH at the first gauge decreased from 91 to 84 RH, while the 2nd gauge went from 86 to 80 RH. I checked the readings every 3-5 minutes, and ended it when I got 3 consecutive identical readings from both gauges.

    Conclusions Sensitive SE USA Pinguicula are located near the air input side of the terrarium, and the water level decreases here more substantualy than other trays placed throughout the terrarium. The pings are doing well; from my personal observations, I've noticed P. planifolia will decline rapidly in times of low humidity.

    When the humidifier is on at the same time as the ventilation system, one can see the mist swirl about the tank and exit to the right side.

    Now that Autumn is upon us, our natural gas forced air heating turns on to keep our house at approx. 70 degrees. The drier air has had an effect on the RH in the tank. Gauge #1 commonly goes down to 68% RH.

    happy growing,

    Homer

  2. #2

    Join Date
    Jun 2005
    Location
    guelph
    Posts
    394
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Very interesting setup. As long as the CPU fan holds you should be good.

    Zac
    "You can never underestimate the stupidity of the general public" -Scott Adams-

  3. #3

    Join Date
    Apr 2005
    Location
    Montana
    Posts
    283
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Nice setup. I just did something similar, but with a few differences. I have my fan next to my window connected to a 4" duct. I have my humidifier piped into the intake duct about 12" before it enters my chamber. I also have the humidifier hooked up to a humidstat. When the humidifier comes on, I can't see any visible mist, even though the humidity is maintained at 80%.

    It's nice to see people experiment.


    Brian

  4. #4

    Join Date
    Nov 2004
    Location
    Mount Dora
    Posts
    350
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Awesome setup, great post!
    -Nick
    It's like walking out a door and discovering it's a window.

  5. #5
    homer's Avatar
    Join Date
    Mar 2003
    Location
    Puyallup, Washington USA
    Posts
    679
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thank you for your comments. I wish I could go "high tech" but since money is a huge factor, going cheap is the way to go. I'm just glad it works for now.

    -Homer

  6. #6

    Join Date
    Apr 2005
    Location
    Montana
    Posts
    283
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I went low-tech on the chamber (it's just a 2x4 frame with white plastic on the inside) so I could splurge a little on other components. I still wish I had the money for a better lighting system. I really enjoy taking things and modifying them to suit other purposes.

    Hopefully next weekend I'll have the time to post my current ventilation system. It's not the nicest looking thing in the world, but it works.

    Brian

  7. #7

    Join Date
    May 2005
    Location
    San Diego, CA
    Posts
    2,073
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    What kind of lighting do you have on your tank Homer?

  8. #8
    Tropical Fish Enthusiast jimscott's Avatar
    Join Date
    Nov 2003
    Location
    Western New York
    Posts
    18,768
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Great job! Very impressive!

Page 1 of 3 123 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •