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Old 11-27-2013, 05:55 AM   #1
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'Convert' from 30# tanks to 40# tanks

I understand the basic parts required for the swap such as bigger tanks and a cover. What else would be required??
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Old 11-27-2013, 06:02 AM   #2
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I assume we are speaking of propane tanks.

On my trailer, the hoses from the regulator are a fairly close fit. I don't think they would be long enough to reach valve on the taller bottle.

One might also have to replace the all-thread that the hold-down threads onto to accommodate the taller bottles.


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JD
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Old 11-27-2013, 06:04 AM   #3
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Sounds simple enough. I'm still in the market for a AS. I have a few "on the lot" options and have been considering a special order unit. For the parts needed it still seems simple enough to swap over but I need to research the tank and cover costs if buying retail.
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Old 11-27-2013, 07:38 AM   #4
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Before you go out and spend the $$$ for a new cover for the 40# tanks try using the old cover. Previous owner did that on ours and I can live with it. Just get a longer threaded rod and so long as the tank connection hoses will fit you'll be good to go. If you need to get longer hoses check around for a hose shop and they can make them up for you but ours did fit with no problems.
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Old 11-27-2013, 08:29 AM   #5
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I didn't consider the cover could still be used. Another dollar saved!!! Thanks.
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Old 11-27-2013, 09:00 AM   #6
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I used 40# on my 1975 (used 100# too but that was only while parked) Only change I had to make was a longer piece of all thread. No cover on mine.

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Old 11-27-2013, 08:10 PM   #7
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You'll see the cover won't go all the way to the bottom of the tanks. I can live with it. Maybe you can too. Especially after you check the cost of a new one. But then that will be your choice.

Good luck with it.
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Old 11-28-2013, 12:18 AM   #8
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Or GO NAKED

Instead of getting steel tanks, you could get Aluminum tanks, polish them and "go naked" with the tanks showing. They really don't need to be covered - but it might make it easier to keep them shining if you covered them while traveling, and cardboard could do that!

If the cost of the steel tanks and a new cover are less than or the same as 40 lb. Aluminum tanks, why not?

Paula
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Old 11-28-2013, 05:29 AM   #9
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If you are considering a special order unit, go for the 40's. The extra capacity is nice. I also like the guages, inside on the monitor panel and on the tanks themselves. They will give you a fairly good idea of how much is left in the tanks. If you order new they will come with the taller cover. Cosmetic, but part of the Airstream look. And if you are going new, the extra $$$ won't be an issue anyway.

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Old 11-28-2013, 06:12 AM   #10
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The #40 tanks are nice especially in heating season. The #40 cover is big bucks.... if esthetics matter you'll have to add the stripes.... extra spendy. Why not get the nice aluminum tanks, buff them up and go commando. Personally I somehow like the looks of naked tanks.
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Old 11-28-2013, 08:35 AM   #11
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The gauges would be nice. Mine don't have them and they don't connect to the interior panel so I need to keep track of propane storage the old fashioned way. I take them off and shake them. I do have the original 30# tanks with gauge and connection and may decide to offer them for sale one of these days but for now I have both sets. I'm not sure if there's any aftermarket accurate way to track their tank levels.
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Old 11-28-2013, 08:37 AM   #12
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You can get both style gauges from vts... they carry both monitor and direct visual dials.
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Old 11-28-2013, 08:52 AM   #13
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Instead of all thread rod pur. stainless rod thread both ends use nut top & bottom frame bracket then use top bracket on tanks. Will not rust sure looks a lot better than steel all thread rod. I have done this for 50 plus yrs.
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Old 11-28-2013, 10:29 AM   #14
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Thanks Atomic. Will these be able to be read on the interior panel or directly at the tank ???? I think I'll look into the options.
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