Help! Need quick plan approval for ventilation!

[FishTruck]

Hi. I have a 300 gallon tank and cabinet arriving soon. I need to get vents installed in the walls before it gets here.

The idea is to isolate the equipment room / cabinet, and hood from the rest of the house and use outside air to cool the system. This should work 9 months out of the year.




See diagram! Thanks!

 

[gary faulkner]

I like your plan as I was considering how to do this myself on my next upgrade.

You should only need the one fan, though. Use the fan to blow into rather than pulling from the equiptment. This will bring in dry fresh air across the fan itself, keeping it running many months longer than doing it the other way.

Does that make sense?

HTH

 

[bag151]

Gary is right, It is much better to push dry air through the fan then pulling wet air through the motor. This to me isn't so much a concern for the longevity of the fan but is a fire hazard. Pulling wet air through a electric motor isn't really that great of an idea.

 

[FishTruck]

Thanks Guys!

The fan is rated to vent humid bathrooms, but, usually that ventillation goes up, not down. Water condensation in the fan might be a problem. I was thinking about drilling some drip holes.

I will build it to push the air first. Maybe, beef up the ducts to six inches on the outlet end where I can to minimize the need for a vacuum fan.

Ryan.

 

[FishTruck]

Here's the updated plan. Last question... is a 120 cfm fan enough? Keep in mind, there are no fans in the display hood itself.

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At the moment, I am leaning toward a 240 cfm fan and adding more six inch duct on the inlet side.

Thanks again.

 

[gary faulkner]

Four inch duct would probably be enough. If you want to go six that would be OK too.

120 CFM will be plenty of air. 240 would be way overkill IMO.

HTH