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4-inch Exhaust Fan: [ Ссылка ]
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4-inch / 3-inch Flexible Duct: [ Ссылка ]
Today we are installing a 3-inch vent fan in my garage. The purpose is to help cool down the garage. This is a 3-car garage and faces west. In the summer evenings it heats up to 30-35 degrees and holds its heat all night and well into the next day. It’s now still 25 in here this morning and only 12 outside. Here on the Canadian prairies, the temperature fluctuates about 15-20 degrees between day and night. I have a fridge and a freezer in my garage that needs to work extra hard to fight these temperatures, and my bonus room above the garage here is unbearable, partly due to the heat from within this space.
The plan is to use this fan when the outside temperatures are about 20 degrees or below; so, from about midnight to noon. Again, this is a 3-inch fan and this will be a test to see if it will impact the air temperature in this space. Now when you pump air out, you need air to replace it. I have a 3-inch vent pipe installed right here where I will be installing the fan, where the warm air will be exiting. The garage doors don’t have a perfect seal and the outside cool air won’t have any issues entering and replacing the warm air inside.
Here is a look outside of the vent where we’ll be blowing air out.
Here is a quick view of unboxing the fan. The manual explains very well how to wire this up and the fan is quite beefy and much larger than 3-inches. But it obviously fits a 3-inch vent pipe. The wires however are a little thinner than I hoped and I do need to extend the ground wire to make it useable.
Let’s pop this open and make sure everything is wired correctly. Interesting but not surprising. The ground wire isn’t connected to anything and there is nowhere for it to go. So, let’s install a plug onto the wires.
Since I’m taking things apart, let’s remove the fan from the vent connections. And let’s plug it in and get an idea of how much power it draws. Ok, so close to 40w.
This is a look at the aluminum venting I will be using. Links for this and everything seen here today will be in description.
Let’s get the fan body mounted. I’ll mark the drill holes and drop in some anchors and place the fan onto the mount. Next, we’ll get the piping installed and clamped on. Obviously, I want the fan installed on the ceiling because that’s where the hottest air will be hanging out.
Lastly, we’ll get the time setup to run from midnight to noon. And let’s turn it on. Cool. It has a little hum, but not too bad. From the upstairs room right above, you can barely hear it and not an issue.
So, do it work? Yes, it does work, but only helps by a few degrees. You can feel the difference after it’s been running all night, but I think to make a big difference, I would want a half dozen of these or a bigger and more powerful fan. It’s a great proof of concept and a lot of fun to install. I hope you enjoyed the video, if so, give me a thumbs up and subscribe for more acreage life projects.
