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Old 05-18-2017, 08:02 PM   #11
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All right, guys, I'm ready to do battle! I'm back from town and I'm armed with an infrared thermometer gun and a bunch of beer. I reckon I'll have a beer and install the batteries in the gun, then have a beer and read the instructions on how to use the gun. Then I think I'll have a beer and.... take a nap. THEN I'll get up and start taking temps, and remove the vents from the ceiling to see what lies beneath. Do those round rotating vents just snap on?

I have noticed a disparity in the temp that the hall thermostat reads. It usually reads substantially higher than actual indoor temps, so at first I assumed it was showing the outdoors temp. This morning I set the thermostat at 74, and it now reads 75. But my handheld thermometer says it's actually 69 in the hallway where the thermostat is, and 71 on the couch at the back of the trailer.
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Old 05-18-2017, 08:18 PM   #12
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All right, guys, I'm ready to do battle! I'm back from town and I'm armed with an infrared thermometer gun and a bunch of beer. I reckon I'll have a beer and install the batteries in the gun, then have a beer and read the instructions on how to use the gun. Then I think I'll have a beer and.... take a nap. THEN I'll get up and start taking temps, and remove the vents from the ceiling to see what lies beneath. Do those round rotating vents just snap on?

I have noticed a disparity in the temp that the hall thermostat reads. It usually reads substantially higher than actual indoor temps, so at first I assumed it was showing the outdoors temp. This morning I set the thermostat at 74, and it now reads 75. But my handheld thermometer says it's actually 69 in the hallway where the thermostat is, and 71 on the couch at the back of the trailer.
Those rings SNAP off, with the gentle help of a butter knife..
That will expose 3 small screws that hold the fixture in... Remove those screws and you will be able to PULL the fixture out of the ceiling.
measure the thickness of the ceiling, then measure the ring.. You will probably see that the ring needs to be trimmed by an inch or so for better flow..

Once done that, ( and the 6 pack) . Its time to climb to the roof and call us back ! The AC foam divider is next !
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Old 05-18-2017, 11:32 PM   #13
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You should save the roof job for tomorrow BEFORE the cold ones, if your like me you don't bounce well.
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Old 05-19-2017, 12:15 AM   #14
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I don't know if I've discovered anything meaningful yet, but I'm having a lot of fun with my new thermometer gun (it has a laser beam on it!). And also with my Guinness Irish Wheat beer & Shiner Golden Ale.

So, after my nap, I decided to check the depth of the vent rings first. I started by pulling a bedroom vent off, since I could reach it without a ladder and easily figure out what you guys are telling me to look for. That duct is only 1 1/2" deep, and the ring is 1 1/2" tall. However, there is an inch of space between the ceiling and the duct, so the ring only protruded about a 1/2 to 3/8th's into the duct, leaving about an inch of unobstructed duct. The circular cuts through the ceiling and the bottom of the duct are very tight, and it was hard to reinsert the collar through the openings, so I'm not losing any air there.

Once I understood what I was looking for, I checked the other five vents in the bedroom/bath via flashlight and by sticking my finger in through the louvers. They were all installed in the same way, with the same inch of clearance in the duct. When I used my super-cool thermo-gun (with laser!), each vent read 47 degrees from a distance of 18".

In the living room I got readings of 52 from the kitchen vents (closest to the a/c unit), and 58 at the rear vents. I haven't pulled any of the vents off, but I can see via flashlight that they all have the same 1 1/2" rings, BUT none of the rings are properly inserted through the holes in the bottom of the air duct. They all appear to have simply been pushed up against the bottom of the duct, and I can see that there are small gaps around the rings and the bottom of the duct. But none of them are protruding into the duct & blocking air flow.

Now here's a quick caveat: it was cloudy today, so there was no direct sun on the trailer when I was taking my readings. It only got up to 88 outside, so the trailer stayed plenty cool inside. It's 5 pm here now, the clouds are gone, and the evening sun is starting to shine on the side of the trailer. I'm going to let it heat that wall up for a bit, and then grab a Guinness and my thermo-gun (with laser!) and get some outside & inside temps on the wall. Stay tuned.
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Old 05-19-2017, 12:27 AM   #15
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Travelin' Texan, the highest I'm going to climb tonight is up the three steps into the bedroom. My wife is in Colorado with my daughter and grandkids, so if I fell off the roof I'd have to lie there for weeks waiting for someone to fetch me another beer.
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Old 05-19-2017, 02:33 AM   #16
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Travelin' Texan, the highest I'm going to climb tonight is up the three steps into the bedroom. My wife is in Colorado with my daughter and grandkids, so if I fell off the roof I'd have to lie there for weeks waiting for someone to fetch me another beer.
That's a good plan, you could die the thirst before she got back.
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Old 05-19-2017, 02:47 AM   #17
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Yes, stack your empties up next to the 5'er to keep the sun off it !!!
It STUNNED me the heat difference between the different colors on ours...
I know black absorbs heat, but my goodness !!!!

Why I suggested getting the sun off at any cost...
do you have awning covers ?
How about window awnings ?
on our new MH, those windows awnings are worth their weight in GOLD in two ways...
Keeps the sun off the windows on the passenger side AND keep the hot air to a minimum when the wife says I can't see outside with the shades drawn
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Old 05-19-2017, 03:37 AM   #18
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You are so right about the colors, johnboytoo! When I went out at 6:30 it was partly cloudy, so the sun wasn't even close to doing it's worst. I still got a temp reading of 110 from the cream colored paint, and 124 from the maroon paint. The windows were reading 111 on the outside, 101 on the inside, and 90 through the blinds & solar screens.

I'm ready to check out that foam gasket on the roof tomorrow. I also have vent covers to install over the kitchen & bath vent fans, so I'm hoping it's cloudy again tomorrow morning.

By the way, I do have all LED lighting in the trailer, no halogen anywhere.
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Old 05-19-2017, 01:22 PM   #19
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The only thing I see that I would look into is Sam Adams Summer Ale and Shiner Bock. Not familiar with the Golden Ale but I'm willing to try new things. Our thermostat for the living room reads high also, very common for these things as I am on my 3rd thermostat.
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Old 05-19-2017, 04:00 PM   #20
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As a temporary measure,
get you some reflectix here or here, cut it to size and push it into the window openings to line the windows on the sunny side,
stuff some up into the vent when they re not in use,
cover the shower skylight on the outside to keep the sun from beating down on it...

I know, I know, but to keep cool, I sure would !

put your awning out and tie it down - do anything to keep sun off...
A word of caution. JMHO Putting this stuff behind the windows could cause a problem. It could cause the windows to break due to thermal shock. No where in the product literature does it say anything about using it by the windows. Putting it behind the windows would cause the glass to hold more heat than they are intended to. The insulated glass could fail and the monolithic glass could break. I don't think its a good idea. I would try other things first.
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