My home has a basically rectangular shape. At each end there are two venting openings that are approximately 1' x 2'. A total of four give me 8 sq. ft. of venting. We live in a climate(Sacramento) that peaks the summer temperature at around 5 PM, so the air outside isn't really cool until around 10 PM, too late for early evening cooling with a whole house attic fan. So first I am going to try a gable mount attic fan to push out the hot attic air that accumulates through out the day. Normal summer temps here are low 90's to around 105 degrees peaking as I said, late in the day. My idea is to mount a gable fan in one of the openings on the east side. The fan I plan to use is a QuietCool Pro 3013 CFM fan. But I was concerned that the fan would just end up sucking air from the nearest opening, the second of the four gable openings, located just about six feet away, instead of from the other two gables at the other end of the attic. I have two questions, the second depending on the answer to the first: 1. Will the nearby opening provide most of the air thus negating the pulling of the hot attic air from the openings at the other end? If the answer is no, no problem. If the answer is yes then read #2. 2. I would mount a gable vent panel with move-able slats facing out in the gable nearby. So when the fan is turned on the slats would be sucked in to a closed position thus forcing the exhaust air to come from the other end of the attic. Will this work? If I do #2 and later install a whole house attic fan then the air forced into the attic will vent out through the three open gables and the move-able slatted one if needed. Will this work? My home is 1850 sq. ft., single level. If I install a whole house fan it will be a 30" 6000 cfm MasterFlow. Is another alternative to just close off the gable next to the vent fan giving me 6 sq. ft. of vent? I hope I haven't written this in too complicated a description. Any advice would be greatly appreciated.

For the last 20 years I've lived in a home built in the 1950s. Due to a renovation before I moved in, the stove vent was simply covered over, sealed and made no longer available. They just used a piece of sheet metal to cover and caulk it. Just today I removed the sheet metal. Looking at the image, you'll see the vent comes out right at the slope of the roof line. The roof you see in the image is part of an addition that was built before I bought the house. My concern is that the first time I get a good rain, water will gush down into my vent. The outside vent housing is maybe 8x10", but only the top part of the vent is open, shown by the red rectangle, which is your standard 4x10 opening, I guess the vent was left open below as some kind of drip loop, so to speak. [IMG]http://i971.photobucket.com/albums/ae197/mypicstrix/v1.jpg[/IMG] [IMG]http://i971.photobucket.com/albums/ae197/mypicstrix/v2.jpg[/IMG] Here's a view from the inside. The vent is already in the furthest top corner of the interior kitchen room: [IMG]http://i971.photobucket.com/albums/ae197/mypicstrix/v3.jpg[/IMG] I'm not sure what my best option is, so that's why I'm posting. My feeling is I should just move the vent up. Horizontal movement isn't really an option, but if I move up a foot or so, that will move me into my second story. From there, I can open up an upstairs bathroom wall for access and then and bring the ductwork up an out using a standard 4x10 exhaust vent. I'm not a mason. This doesn't thrill me as an option. The other option I was wondering about would be just using the same hole addressing the issue on the exterior. Maybe I could use some kind of exterior duct work or shedule 40 piping to move things up and out of the way of the water run off? Something like this? [IMG]http://i971.photobucket.com/albums/ae197/mypicstrix/v4.jpg[/IMG] Any suggestions or comments greatly appreciated. Meanwhile, I'm headed outside to try to reseal the vent in case it rains.