? exhaust cover help

[lillip]

Morning,

I'm still working on setting up a studio- took some time off to go to the sun for my annual winter dosage of vitamin D. Now back in the grey weather, day job, and anticipated fun with my new studio-

I need help figuring out how to cover my exhaust (ventilation) fan when not in use. It is mounted on an outside wall and on the outside is about a 14" diameter and it is mounted more than 8 feet high. (I'm only 5'2 !) ON the inside the diameter of the vent opening, in an overhead hood, is 12 inch diameter that houses a 10" duct- this sits about 36 inches above the work bench.

As a temporary solution, when we went out of town for a few weeks, was to take one of those really large brown plastic garbage bags- it fit perfectly and tight around the circumference on the outside- it was great protection from the worst of the rains and really windy days. And it remains in great condition. Though, This is far too impractical for everyday use.

The only thing I can think of to use as a cover is to perhaps rig together something metal with magnets to use on the inside opening. ??? Any ideas how to do this or other suggestions?
Cyndi

[cheng076]

How about a plastic (or metal) garbage can lid? Or just a flap of some material that is hinged at the top and has a pull rope on it to open it? The flap could be plastic, metal, wood or whatever.

[houptdavid]

You need a weather hood with a self closing baffel
http://www.grainger.com/Grainger/BRO...G78?Pid=search
or a wall shutter
http://www.grainger.com/Grainger/DAY...557?Pid=search

[lillip]

both replies are really good suggestions- thank you.

[glasshobbit]

i have a piece of 1" blue stryrofoam cut to fit the inside diameter of my hood. This fits up nice and snug when fan is not in use

[artwhim]

I use a self closing baffle like the first one David listed. It works great. The flap moves easily to accommodate the air flow.