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Old 11/14/2018, 12:54 PM   #1
Khazmodain
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Ventilation Ideas

I have too much heat/humidity in my fish room and am looking for some ideas/feedback. I have a 400g display with a 125g sump plus a 55g QT, 40g QT, and 29g QT in my fish room. This room is enclosed in an unfinished section of my basement (the 400g is an in-wall display which is viewed from the finished side).

I have been running a dehumidifier and it doesn't keep up enough and also causes the room to heat too much. Right now the fish room is about 80 degrees with 50% humidity. All of the windows throughout the house are already dealing with condensation as the outside temp has dropped.

I'm in Iowa so in the winters the outdoor temp is really cold and during the summer it gets hot and humid. I've seen some people use an air exchanger but I'm leaning more towards just an exhaust given my location. It shouldn't be too difficult for me to run a bathroom fan that vents outside. Is a 120 CFM bathroom exhaust fan adequate? The fish room is probably 25 x 20 with 10 ft ceilings (5000 CF).

Any thoughts would be appreciated.

Thanks!
Eric


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Old 11/14/2018, 01:23 PM   #2
Dmorty217
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You would probably need more than one bathroom fan to get enough heat out. You might need to get another dehumidifier if the current one isn’t keeping up. I have 625g DT 200g sump, 125g and 75g QT and a 40g I setup for QT when needed and I have zero issues with heat and humidity is at 40%. Every situation is different though


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Fish are not disposable commodities, but a worthwhile investment that can be maintained and enjoyed for many years, providing one is willing to take the time to understand their requirements and needs

Current Tank Info: 625g, 200g sump, RD3 230w, Vectra L1 on a closed loop, 3 MP60s, MP40. Several QTs
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Old 11/15/2018, 08:52 AM   #3
McPuff
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How old is the dehumidifier? I recently replaced mine because it was getting really sluggish. The new one is energy star and keeps humidity in check. My system is smaller at 300 gal DT with 40 gal lagoon and 60 gal sump.


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Old 11/15/2018, 05:38 PM   #4
Khazmodain
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Quote:
Originally Posted by McPuff View Post
How old is the dehumidifier? I recently replaced mine because it was getting really sluggish. The new one is energy star and keeps humidity in check. My system is smaller at 300 gal DT with 40 gal lagoon and 60 gal sump.
Brand new dehumidifier. I upgraded to a larger capacity since my older one wasn't keeping up with the humidity. New one is making a larger impact on humidity but it is kicking off way more heat. Also have some of the heat from a 600w MH my wife uses for propagating house plants.


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Old 11/15/2018, 07:43 PM   #5
lapin
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On my 600g with a 100 g sump I vent my room with a constant duty bathroom style exhaust fan. In summer I open the AC vent and it helps cool the room. Winter I have to close it as the heater causes the room to get hot. I am lucky that the door to my room is in the hallway as is the intake for the A/C- Heater. I am in Austin so we do have hot summers and those stupid cold fronts in the fall and winter. Spring is the problem time. Humid gulf air comes from the south and you have to change your shirts 5 times a day. Hard to keep things dry when its 100% humidity and the dew point is 75F


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Old 11/15/2018, 10:50 PM   #6
Khazmodain
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Originally Posted by lapin View Post
In summer I open the AC vent and it helps cool the room. Winter I have to close it as the heater causes the room to get hot. I am lucky that the door to my room is in the hallway as is the intake for the A/C- Heater.
This is my exact same scenario. The heat (from lack of AC) in the winter combined with the dehumidifiers is causing the room to heat too much.


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Old 11/16/2018, 01:10 AM   #7
druzzelle
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my new house is currently under construction. finally getting my fish room. the room will be finished, with a 6 inch recess in the foundation with a floor drain centered in the room and a utility sink. my 240g will be an in wall display into my dining room. I have plans for a QT, frag tank, mixing station and possible something else. the room is air conditioned, but I tried to get the builder to install a vent in the room that would be connected to a humidistat in order to control humidity in the room but they wouldnt do it, so i'll have it installed after I close. the vent I researched to install has been used by other reefers with much success so thats the route i'll go... the model is Panasonic FV-11VHL2 one of these days i'll figure out how to make uploading pics more simple lol


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