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  1. #31
    Elite Member Duffster's Avatar
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    Mar 2009
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    4,372
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    Wisconsin

    Default Re: Storing gas in a propane tank?

    Quote Originally Posted by LBrown59 View Post
    Boy this would be a PITA for anyone trying to keep warm in their in their house for the winter.
    Must have really efficient furnaces in their houses .
    I mean 5 to 25 gallon lasting all winter .
    Where do I get one of those furnaces.
    Do furnaces run on gasoline?
    "If everyone is thinking alike, someone isn't thinking." George Patton

  2. #32
    Veteran Member SpringHollow's Avatar
    Join Date
    Dec 2006
    Posts
    1,999
    Location
    South of Rochester, NY
    Tractor
    Power Trac 1850, NH 2120

    Default Re: Storing gas in a propane tank?

    Gasoline is way too dangerous for a furnace inside of a residence. The explosive air/fuel range is way too large. Just takes a small ignition source such as a light switch, etc. Fuel oil/diesel does not have the same vapor properties.

    Gasoline as an upper and lower explosive ratios of 1.4 to 7.6, fuel oil is 0.7 to 5, propane is 2.1 to 10. That does not sound like they are much different. However, the difference is the ease of creating the vapors and the flash points. Gasoline is 10 x's more volatile than diesel or fuel oil and the flash point of gasoline is -45 °F and fuel oil is about 150 °F.

    Propane and natural gas are potentially dangerous which is one reason why they add the oderants to it. But their vapors are light and mix well with air so less likely to have a localized high concentration as compared to gasoline vapors which tend to sink and pool which is why storing gas near a flame heated hot water tank is dangerous.

    Ken
    PT1850, mini hoe, grapple, stump grinder, brush hog

    http://www.usadiscountgenerators.com...T1850Home.html

  3. #33
    Silver Member
    Join Date
    Feb 2004
    Posts
    244
    Location
    Outside of Raleigh, NC
    Tractor
    -

    Default Re: Storing gas in a propane tank?

    The more I think about it the more I think I should just get 4 steel barrels for 220 gallons of storage. I'm going to look into the idea of CO2 or other inert gas fill as somewhat of a fuel stabilizer and to keep moisture out. (possibly as the pumping mechanism as well) I don't plan on storing it for more than 3-6 months at most.

    I still haven't had a chance to call around but my main hope is that I can buy 100% gasoline with no ethanol for "offroad use" but I'm not sure if that's legal here or not. I don't see any reason why not, since race fuel is legal....

  4. #34
    Platinum Member
    Join Date
    Aug 2002
    Posts
    849
    Location
    northfield connecticut
    Tractor
    gradall g3r excavator, kawasaki mule 2500,ford 8000,and a 1936 caterpillar road grader

    Default Re: Storing gas in a propane tank?

    i have a 120 gallon propane tank i mounted on a axle and use for offroad fuel, not towed on the road, just around the property. i will get some pictures soon
    Kawasaki Mule 2500,Ford 8000,Caterpillar road grader,gradall g3r excavator,JD210c

  5. #35
    New Member
    Join Date
    Oct 2012
    Posts
    3
    Location
    chaparral nm
    Tractor
    none

    Default Re: Storing gas in a propane tank?

    Quote Originally Posted by zmoz View Post
    The more I think about it the more I think I should just get 4 steel barrels for 220 gallons of storage. I'm going to look into the idea of CO2 or other inert gas fill as somewhat of a fuel stabilizer and to keep moisture out. (possibly as the pumping mechanism as well) I don't plan on storing it for more than 3-6 months at most.

    I still haven't had a chance to call around but my main hope is that I can buy 100% gasoline with no ethanol for "offroad use" but I'm not sure if that's legal here or not. I don't see any reason why not, since race fuel is legal....
    Use Nitrogen as it is inert . Vent the tank in hot weather and close the vent valve and cut in nitrogen when a vacuum forms in the cold. If you have a drain valve completely fill the air space with gasoline and then cut in nitrogen and drain 20% of the gasoline..The second method is easier..A pressure gauge is good and leave 5 PSI nitrogen press to check for leaks....Should not go down to 0 Psi or just cut in a regulator and look for n2 bottle useage.....Make sure the tank steel is thick(I use propane tanks)...I treat the tank with PRI stabilizer ...5 years should be easy for gas with alcohol and with Av gas(100LL) 10 years...I keep it for Generators.....Charlie

  6. #36
    Elite Member
    Join Date
    Jan 2010
    Posts
    3,461
    Location
    Oklahoma
    Tractor
    JD cut

    Default Re: Storing gas in a propane tank?

    Under no circumstance would I use an electric drill or any other tool that might cause sparks on a propane tank, "empty" or not. As for welding or cutting, forget it.

    So, how are you going to plumb this tank for gasoline delivery and dispensing?

  7. #37
    New Member
    Join Date
    Oct 2012
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    3
    Location
    chaparral nm
    Tractor
    none

    Default Re: Storing gas in a propane tank?

    Fill the tank with water and drill away....Tap it...Blow out the tank with a shop vac for a couple days.....It's dry here in new mexico..and enjoy....Old propane tanks are a buck a gallon here and usually because the propane fittings are leaking........pull them out put in black iron plugs and fill away...Leave space for expansion ...I use a hand pump to get the gas out....Filter it.I use lock tight 510 to seal threads..Charlie
    Last edited by c east; 10-16-2012 at 10:03 AM.

  8. #38
    Elite Member
    Join Date
    Dec 2007
    Posts
    4,453
    Location
    Ontario, Canada
    Tractor
    Ford 3930

    Default Re: Storing gas in a propane tank?

    Spring Hollow - normally I don't nitpick, or play Safety Nazi (much anyway), but Propane is normally considered heavier than air. For this reason, propane vehicles are often prohibited from using parking garages, and in some areas, tunnels.

    From Wikipedia:

    "Propane is denser than air. If a leak in a propane fuel system occurs, the gas will have a tendency to sink into any enclosed area and thus poses a risk of explosion and fire. The typical scenario is a leaking cylinder stored in a basement; the propane leak drifts across the floor to the pilot light on the furnace or water heater, and results in an explosion or fire. This property makes propane generally unsuitable as a fuel for boats."

    Propane - Wikipedia, the free encyclopedia

    Wouldn't want to see somebody not realize the heavier-than-air risks with propane...... could be fatal. A few years back in Toronto a guy was working on his catering truck (roach coach) in his driveway at home. Had a propane leak, when parked in the driveway. The garage was below grade, under the house. The propane ran down the driveway, under the main garage door, and pooled in the garage. Boom - major house damage, but as I recall, fortunately no fatalities - if I'm remembering this correctly, that was just dumb luck though.

    Play safe. D.

  9. #39
    Gold Member wyeguy's Avatar
    Join Date
    Jun 2012
    Posts
    390
    Location
    Bartlett, Iowa
    Tractor
    Ford 1100

    Default

    I don't know what pressure compressed air will make gasoline combust, but that's kinda like how a diesel works, doesn't it?
    I live in the middle of the ethanol producing plants in the nation and it would drive me nuts if I couldn't get real gasoline!

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