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Old 10-25-2010, 12:05 PM   #1
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Help with tank heater hose location

I need some help with the tank heater hose location.

RE: 1976 31' Sovereign center bath twin
My furnace duct hoses had been removed by a previous owner and I'm not positive of the location for the second tank heater hose to enter the floor. In the posted picture, one hose is still located at the fresh water tank.

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I'm guessing the second tank heater hose enters at the location by the water valve in the front inside area of the fender well. Can anybody confirm? This looks pretty far ahead for the gray water tank.

The valve in the picture at the floor hole location is associated with the city water supply line that crosses under the floor.

I'd really like to see a picture of a duct system correctly installed showing the floor tank heat vent locations for a similar trailer to mine.

Thanks!

Gary
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Old 10-25-2010, 02:37 PM   #2
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Gary your set up looks very similar to mine. The fresh water tank has a flexible pipe from the furnace into the floor right abour in the middle of the fresh water tank. The grey tank flexible pipe goes through the floor just in front of the wheel wells and travels under the floor and above the axles in the belly. It connects to a flange on the galvanized box for the grey tank on the curbside just behind the axles. The black tank has the same type of flexible pipe which comes off the furnace ducting in the bathroom cabinet and goes into a hole in the floor inside that cabinet. You can see the black tank pipe when you open the hinged door under the sink. I can get you pics if you like.
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Old 10-25-2010, 04:49 PM   #3
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Oh my! The PO replaced the fresh water tank and apparently he dispensed with the heat pipes. The fresh water tank heat duct is all I found as shown in my picture.

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There's no holes in my bathroom floor. I have everything out except the shower pan.

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The hose shown is connected to the heat vent located under the shower pan, exiting toward the rear of the coach.

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Yes, Pictures will help. I'd appreciate it if you'd post them. Thanks!

Gary
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Click on the link to see a picture of the Sioux River falls near my home.
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Eastern South Dakota is very pretty with hills, rivers, and trees.
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Old 10-26-2010, 07:12 PM   #4
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Gary Sorry It took so lng but here are the pics I promised you. You`ll have to imagine some because my interior is not installed yet.
The first pic shows the holes for fresh water and grey tank. The grey tank is the one with the duct installed. Right behind that is a large hole that is for the exhaust fan from the bathroom.
The second pic shows the hole for the black tank. If you look you can see the toilet flange and the opening in the shell where the water heater goes.
The third pic shows the grey tank duct hose. This view is curb side looking rearward at the grey tank.
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Old 10-26-2010, 07:56 PM   #5
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Thanks for posting the pictures. My trailer doesn't have a hole at the black tank location. My service manual only shows two hoses going to the belly pan but the diagram doesn't show the back pipe inside the pan nor does the service manual show the locations in the floor that the heat ducts enter the belly pan. My existing duct layout supports the two hoses to the belly pan thesis.

Your pictures removed some of my confusion and added different confusion. I'm thinking that for now, my plan will include dropping the belly pan to see if there's a connecting point for the rear duct inside the belly pan.

Gary
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Old 10-28-2013, 08:40 AM   #6
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Are the hoses you ran 2" hoses, and do they each connect independently to your furnace?

Also, the hole in the floor for your exhaust fan. What is that doing?

Quote:
Originally Posted by wasagachris View Post
Gary Sorry It took so lng but here are the pics I promised you. You`ll have to imagine some because my interior is not installed yet. The first pic shows the holes for fresh water and grey tank. The grey tank is the one with the duct installed. Right behind that is a large hole that is for the exhaust fan from the bathroom. The second pic shows the hole for the black tank. If you look you can see the toilet flange and the opening in the shell where the water heater goes. The third pic shows the grey tank duct hose. This view is curb side looking rearward at the grey tank.
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Old 10-28-2013, 10:26 PM   #7
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The belly heat hoses I ran are 2". The front one connects directly to the furnace. The rear one branches off the manifold.
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Click on the link to see a picture of the Sioux River falls near my home.
http://img.photobucket.com/albums/v1...g?t=1278182564
Eastern South Dakota is very pretty with hills, rivers, and trees.
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Old 10-29-2013, 05:35 PM   #8
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Quote:
Originally Posted by Splitrock View Post
The belly heat hoses I ran are 2". The front one connects directly to the furnace. The rear one branches off the manifold.
The hose that connects directly to the furnace...how far back does that hose go?

BTW, where did u purchase your 2" duct?
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Old 10-29-2013, 09:29 PM   #9
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Quote:
Originally Posted by KYAirstream View Post
The hose that connects directly to the furnace...how far back does that hose go?
The direct connect hose goes right down to the fresh water tank.

Quote:
Originally Posted by KYAirstream View Post
BTW, where did u purchase your 2" duct?
D&W Incorporated
941 Oak Street
Elkhart, Indiana 46514
PH (574) 264-9674

Flexible Ducting / Uninsulated Flex / 2" x 25' Premium Flexible Heat Duct 25' Piece - SLP - DW Inc.

2" x 25' 2" Premium Flexible Heat Duct 25' Piece - SLP - 25 ft.

2" Premium Flexible Heat Duct - Airstream Forums
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Click on the link to see a picture of the Sioux River falls near my home.
http://img.photobucket.com/albums/v1...g?t=1278182564
Eastern South Dakota is very pretty with hills, rivers, and trees.
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Old 10-30-2013, 08:51 PM   #10
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Thanks for the link.

Regarding the direct connect hose leading to the fresh tank, on my 79 center bath the fresh tank appears to sit further back toward the first axle. However, maybe one of the steel cross members in the belly pan will have an opening that will allow heat through.....
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Old 10-30-2013, 10:22 PM   #11
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My fresh water tank sits under the cooking stove right beside the entrance door, then the gray tank and of course the black water tank sits under the bathroom. Good luck with your project.
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Click on the link to see a picture of the Sioux River falls near my home.
http://img.photobucket.com/albums/v1...g?t=1278182564
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