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Old 12-18-2012, 06:31 PM   #1
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Propane Tank Question

With an onboard genset in my fiver, I need all the propane I can carry. I am thinking about replacing my two 30# tanks with 40# tanks, which would give me an extra 6 gallons. The diameter is the same for both, and the 40# is only 6" taller, so it should be no problem. I am just wondering if there is any reason I should not do that. Am I overlooking anything, such as safety, etc.?
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Old 12-18-2012, 06:36 PM   #2
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Nope. But you have now discovered the biggest downfall of propane generators.
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Old 12-18-2012, 06:39 PM   #3
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As long as they fit and don't interfer with anything because of the extra height, I would say go for it. You may have to extend some plumbing because of the extra height, but that's an expence, not a saftey issue.
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Old 12-18-2012, 06:49 PM   #4
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Just some food for thought......
Propane weighs 4.24 pounds per gallon. So a 30# cylinder holds 7.08 gals. A 40# cylinder holds 9.43 gals. All that's good for extending your run time but consider the weight (don't forget the tank weight) and handling them in and out of your storage location. The empty weight of the tank is on the tank collar as T.W. (tare weight). A full 40# tank will weigh about 60#.
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Old 12-18-2012, 06:55 PM   #5
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I have dual 40's. I did replumb a bit but it was not a big deal. I appreciate
the extra fuel on board.
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Old 12-19-2012, 03:34 PM   #6
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my last 5er had 40# LPG tanks because of the LP generator. If i did not have the gen set, it would have had 30#'ers. Most 5ers are that way. Just measure the cabinets to make sure the height is ok.
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Old 12-19-2012, 04:51 PM   #7
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I too would think long and hard about it....
Most places I've been you are required to dismount to fill :(
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Old 12-21-2012, 03:32 PM   #8
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Not sure you need to think about it. If the tanks will fit and you can handle them, then why not
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Old 12-22-2012, 12:42 AM   #9
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Had a propane Gen.hard on gas.Used the 3000Honda a lot of hours for less fuel =money saved just My idea still have the honda the propane gen.gone
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Old 12-25-2012, 08:33 PM   #10
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I have a total of four 30lb LP tanks. Two that are in their normal location with the changeover and the gas lines and I had a rack installed next to the Onan where the other two 30 lb'ers are stored . The racks are exactly the same, but the one in the front compartment has no gas lines.
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Old 12-26-2012, 08:41 AM   #11
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I like the idea of just carrying more propane w/o it being hooked up until needed.

I wanted 40# bottles - that was until I picked up a full 30# bottle. 30's are heavy enough for me.

I am thinking of adding a good carry rack on the back of 5er to carry stuff. If I had a genset propane would be one thing I would carry.
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Old 12-26-2012, 08:48 AM   #12
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If you are talking about the taller LP tanks used on most 5ers, they are 7 gallons. That is when the OPD shuts them off.
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Old 12-26-2012, 12:12 PM   #13
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Quote:
Originally Posted by tuffr2 View Post
I am thinking of adding a good carry rack on the back of 5er to carry stuff. If I had a genset propane would be one thing I would carry.
Understand the transportation regulations pertaining to propane before you construct an "after market" carrying space. Generally they can't be transported without substantial protection for the container.
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Old 12-27-2012, 07:37 AM   #14
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One idea for weight. If you go to 40# bottles. Purchase aluminum bottles. They are lighter, so that when full of propane, they weigh the same as steel 30# bottles. They do cost more, but nice.
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