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Old 04-25-2015, 07:49 AM   #1
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38FD Alpine window fans

Hello, I have never owned a Class A and been told a few things I want to clear. We have two fans at the wind shield. When we purchased this coach they where aimed away from window. I know they help with fogging of windshield. I see some turned and aim at the window. What is the prober use of the fans and which way should they be turned. Blowing at the windshield are away. I was told away to pull the heat up. That just doesn't sound right.
Thanks for your input.
Larry Pate
2003 Alpine Coach 38FDDS 350 ISC
Boston KY
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Old 04-25-2015, 08:09 AM   #2
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Mine are pointed at the windshield to help clear any fog on the inside.
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Old 04-25-2015, 09:27 AM   #3
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Mine were pointed aft when we bought the coach. I immediately turned them toward the windshield.
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Old 04-25-2015, 09:34 AM   #4
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The "right way" is the way you need them pointed. I have used mine pointed at the windshield to help defog it when needed and pointed toward me when driving in the heat if I didn't want to turn on the overhead A/C at times. The reason you can turn them in different directions is so you can point them where they serve your purpose at the time.
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Old 04-25-2015, 09:44 AM   #5
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Old 04-25-2015, 11:41 AM   #6
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I removed both fans because I didn't find them at all useful for defogging and replaced them with two more lights matching the existing two. The added lights work very nicely and are actuated by the original fan switch. I also feel the view out the windshield is much improved.
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Old 04-25-2015, 09:09 PM   #7
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Quote:
Originally Posted by Birddog Pilot View Post
I removed both fans because I didn't find them at all useful for defogging and replaced them with two more lights matching the existing two. The added lights work very nicely and are actuated by the original fan switch. I also feel the view out the windshield is much improved.
I like this idea!
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Old 04-25-2015, 09:20 PM   #8
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I always use them pointed away from the windshield to help pull the air up from the defroster vents at the base of the windscreen.

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Old 04-26-2015, 06:21 AM   #9
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Thanks Everyone. I like asking and it causes new ideas and I find different ways everyone uses there's for.
Thanks again
Larry Pate
2003 Alpine Coach 38FDDS 350 ISC
Boston Ky
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Old 04-26-2015, 06:45 PM   #10
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Larry, we use the fans according to the season/weather. During the summer when we are driving, particularly into the sun in the afternoon, we supplement the dash AC with these fan pointed to the rear toward us, the coach air is just not enough when the sun is on the windshield and I don't like running the generator while we drive so we can run the house AC units. However sometimes you have no choice, one time we were crossing Death Valley in September and it was just too much. During the winter I find it better to have them pointed toward the windshield edges so I can see the mirrors, to supplement the defroster, particularly when it is very close to freezing and there is some moisture in the coach. Bottom line, use them the way you see best!

One thing you need to watch for is condensation inside the coach. We find that during colder weather and high moisture inside the coach (like boiling shrimp or making pasta) you get condensation on the inside of the windshield and it can drip on the dash, so if you see pesky brown spots on the dash look up, it is condensation, you can open the vent, turn on the fan above the stove and it will help but not completely.


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