DIY Heat Recovery Ventilator ?

[ElGuappo]

If this is on an outside wall could you not run a 2" pvc pipe from inside your canopy throu the wall and out side. this would not allow any air into your house and alow the humiditty to go out. all it would need is a small fan for coaxing the humid air outside, and some sort of valve (butterfly/ball) to close this up in the winter.

[bassman]

Yes that is pretty much how I envisioned it, it won't need much movement at all.

[ElGuappo]

Originally Posted by bassman

Yes that is pretty much how I envisioned it, it won't need much movement at all.

If you are refering to my pvc pipe thougt there would be no need to run your furnace period. you said this would be an air tight system right? the fans from your lights might even be enough to move the air out!!!!!!!

[bassman]

Originally Posted by ElGuappo

If you are refering to my pvc pipe thougt there would be no need to run your furnace period. you said this would be an air tight system right? the fans from your lights might even be enough to move the air out!!!!!!!

Well I don't have any fans on my lights. I prefer to deal with the heat in my sump in the basement, seems easier to me. So all I would have in there is just lights, no ballast or anything. That is another reason I would like a little air movement in there, that and I am strong believer in keeping fresh air circulating over the surface of the water at all times.

I was picturing some sort of pipe, either a pce of PVC with a little 12 volt computer fan built in line or a inline duct fan but I think that would over kill. One computer fan should do it. I don't think it will take much but that is the reason for this post, I really don't know for sure.

[ElGuappo]

i cant see it needing more power than that. also not sure but angleing the pipe may help warmer humid air "UP AND OUT?"

[KrazyKuch]

It is impossible to make your hood completely sealed because you would always need an access to feed and add corals etc. so you will have air venting into your canopy and going out side so it would seem pointless to even try and seal the canopy at all!!!

[bassman]

The canopy I have now is sealed off, when it's closed. I anticipate air flow through when it's open. I can shut the fan off if it became an issue.