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Old 04-21-2016, 08:49 AM   #1
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Winnebago Owners Club
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Location: Southeast,MI
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Furnace/Water Heater insect screens

I've been contemplating whether to purchase the screens that cover the intake air ports on our water heater and furnace doors. Their not expensive but are they worth it or just another gadget. Do they have a tendency to fall off? Any pro's/con's? Thanks!

Neal and Deb + Mya and Gizmo, the pup's
2003 Winnebago Sightseer 30B

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Old 04-21-2016, 10:12 AM   #2
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Most manufactures state they will not warranty their product if an insect screen is used. If the furnace or water heater is out of warranty, then there are no issues. We are full timers and have never felt the need to use them. However, if we stored our RV part of the year, we might consider a screen like that.

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Old 04-21-2016, 02:58 PM   #3
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We've had the screens on our WH and both furnaces since we got the MH in 2012. I don't see how any manufacturer could object to the ones we have. They certainly won't obstruct the air flow enough to be a concern!
Joe & Annette

2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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Old 04-21-2016, 03:15 PM   #4
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After I purchased the Minnie, I spent an hour or two cleaning old mud-dauber nests from around the water heater. After that I purchased the screen and have never regretted it. Also found some plastic covers for the ends of the hollow back bumper that keep the wasps out. Well worth the price.
Ken and Deanie (with Ralph the cat)

2002 Winnebago Minnie, 331C, Ford E450 chassis
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Old 04-21-2016, 04:49 PM   #5
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Used them for many years, never had any problems, same as "Deer Whistles" and "Alligator Defenders", never seen either.

Fred and Bonnie
2005 Dolphin LX 6375
Abby, Ruffles & Scarlett, "The Cats"
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Old 04-21-2016, 05:08 PM   #6
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I've had the screens over my heater vents for a couple of years and have never seen any indication that they would fall off or even move.

In most places they're probably not necessary, but in the south there are a lot of Mud Dauber's and may be of some benefit.

It is true the furnace manufacturers don't like them, but it may be more of a C.Y.A issue for the manufacturers just in case you pack a wad of window screen in your vent. But my furnace is out of warranty so I use them and try not to worry about the small stuff.
I'm a brand new full-timer pulling an Arctic Fox 27-5L that has a lot to learn.
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Old 04-22-2016, 09:27 AM   #7
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Thanks for everyone's input.
Neal and Deb + Mya and Gizmo, the pup's
2003 Winnebago Sightseer 30B

May the roads rise up to meet you, May the winds be always at your back...
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Old 04-30-2016, 09:29 AM   #8
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Furnace/Water Heater insect screens

I took mine apart, scraped off all the sealer , used a heat gun ,it made removal a lot easier.
I Got some scrap ,black , Aluminum wire, window screen fabric.
I sandwiched it between the two pieces of metal of the intake/exhaust , re caulked ,and installed it.

I did have to drill out and remove the two rivets ,that fastens the intake tube to the outer cover.I replaced them with two small screws.

I'm going to try to attach some pics ,if I can .
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ace, furnace, heat, heater, scr, water, water heater

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