Fan-vent thoughts
 

New 425G tank build and going over fan and venting ideas.

Looking for thoughts on the following;

I have a bathroom fan vent (I believe 6" diameter) I can tee into which runs directly from the bathroom to the outside of the house. So I am thinking of getting two more bathroom fans, one coming from the sump/equipment room and another coming from the area above the tank where the of course the lights are, and teeing these into the existing bathroom fan vent.

Thoughts?

vent
 

it might vent back into the bathroom.better to have separate vents-easy to install and waterproof the outside

make sure to add air return lines, with sucking out that volume of air your going to develope negative pressure in your house.

+1 yeppers nail on the head there. Especially when u are dealing with natural gas too. Best way to do is drill a 3" hole and pipe it in by the furance and problem solved. That is with a older house too with the new houses they have already got a pile that is drilled in for. Fresh air return to the furance. But another one wont hurt

have you considered a dehumidifier in your equipment room and maybe venting your area above the tank into the same space.

that is alot of air to be heating and exhausting.

IF you have the cash, a HRV would be a better idea for decent airflow both into and out of your home.

The bathroom fan has a flap on it. Will the air open this flap and enter the bathroom before it exists the house where there is no flap?

House has no furance, radiant heat with boiler, 20 year old house.

not sure what your mean. Here is a little more info on the area, equipment area will just be under the tank with closet area connected to one side of the tank, area will be sealed off from the rest of the house with and will have access panel.

Above the tank will also be a sealed off area with access panels.

Thanks, with no existing ducting, I dont think this would be cost effective for me.