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Thread: water heater shelf life question.

  1. #1
    DIY Member u.s.coins's Avatar
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    Default water heater shelf life question.

    i have a water heater that i bought about 8 years ago but never used it. it is a 40 gallon gas and is still in the box! i had a leaky t&p valve on my present tank and i thought i was going to have to change it but instead i only needed to change the valve. anyway, i was figuring i'd need the new tank so i had it delivered but never had to hook it up yet! i wondered if it would spoil setting around all that time in my basement. i have it sitting on a sheet of black plastic.

    steve

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
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    Since it's been in the box, it should be fine. It takes water to start the rust process.

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    Retired Defense Industry Engineer jadnashua's Avatar
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    I'm not sure when the FVIR requirements started, but if it's a gas WH, it may no longer meet code. If electric, not a problem. If you were to put in a gas WH that didn't meet the current codes, you may have a problem with the inspection. Doesn't mean that it couldn't work right. There were new rules on preventing a gas WH from igniting flamable vapors from stored, leaking chemicals nearby that forced a new burner/air intake design awhile ago.
    Jim DeBruycker
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    Plumber jimbo's Avatar
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    FVIR was July 2003, so you are close. Does it have a door to light the pilot with a match, or does it have a sparker?

  5. #5
    Moderator & Master Plumber hj's Avatar
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    The FVIR requirement is just to keep idiots from blowing themselves up. The only problem with your heater is that the factory warranty has expired, but normally you would not need it anyway.
    Licensed residential and commercial plumber

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    DIY Senior Member Runs with bison's Avatar
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    If it is pre-FVIR, having that burner assembly on hand, new-in-box, is a big advantage...well, at least for those who aren't idiots that pour gasoline around their water heaters.

    As long as water (as in condensation from humidity fluctuation and temp cycles) hasn't been getting into the tank it should last indefinitely.

  7. #7
    DIY Member u.s.coins's Avatar
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    thanks terry.

  8. #8
    DIY Member u.s.coins's Avatar
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    Quote Originally Posted by jimbo View Post
    FVIR was July 2003, so you are close. Does it have a door to light the pilot with a match, or does it have a sparker?
    yeah it's the match type. the good ol' fashion kind.

  9. #9
    Retired Defense Industry Engineer jadnashua's Avatar
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    While FVIR may be overkill, if you pulled a permit, the inspector may give you grief since it's what, 9+ years since the requirement changed. As to whether it should work...yes it should.
    Jim DeBruycker
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    General Engineering Contractor ballvalve's Avatar
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    Put it on a 18" tall box to eliminate most explosive vapor issues.

  11. #11
    DIY Senior Member Runs with bison's Avatar
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    Quote Originally Posted by ballvalve View Post
    Put it on a 18" tall box to eliminate most explosive vapor issues.
    But then you have to build an 18" tall shelf next to it to put your gasoline and paint thinner on!

  12. #12
    General Engineering Contractor ballvalve's Avatar
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    Har har.... but paint thinner and diesel only burns with a wick in it, and gasoline falls to the floor. Same for propane. The sure fire way to blow up a water heater is spraying laquer big time in the room.

    I would sell it on craigslist and buy a sparker, or add somehow outside combustion air to the unit.

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