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Thread: RV: Water Heater Lightning Rod

  1. #1
    Al Balmer
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    Default RV: Water Heater Lightning Rod

    >
    >I just installed one of these in our Winnie tonight. Took about 2-1/2 hours.
    >Looking forward to having hot water without the propane use when power is
    >available.


    Do you have to wait for a thunderstorm?

    > I think I even installed the .... thing correctly although my
    >knowledge of things electrical is minimal. The only item I'm a bit leery of
    >is the thermostat/temp sensor mount point. The instructions had me tie wrap
    >it to the pressure relief valve. The instructions insist that it's
    >calibrated to sense the water temp from there and only from there. It seems
    >a bit strange since there's a bit of a gap between the two but I guess time
    >will tell and I'll keep a close watch on the water temp until I'm more
    >comfortable with the mount and location.
    >
    >Thanks to Deano for letting me look at his water heater installation last
    >weekend. It was a help.

  2. #2
    Ben Hogland
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    Default RV: Water Heater Lightning Rod

    "Kevin W. Miller" <i09172@strudelyahoo.com> wrote in message
    news:EpidnfmOfuc7dGjenZ2dnUVZ_vydnZ2d@giganews.com ...
    > Next month I think I'll convert the RV from 30 amps to 50 amps. Since
    > I'm such a master electrician now.


    Oh sheesh. Just don't start acting like Boyd. Can I look over your
    shoulder just to make sure you don't burn down your RV?

    Ben

  3. #3
    Alan Robinson
    Guest Alan Robinson's Avatar

    Default RV: Water Heater Lightning Rod

    > "Kevin W. Miller" <i09172@strudelyahoo.com> wrote in message
    > news:EpidnfmOfuc7dGjenZ2dnUVZ_vydnZ2d@giganews.com ...
    >> Next month I think I'll convert the RV from 30 amps to 50 amps. Since I'm
    >> such a master electrician now.

    >
    > Oh sheesh. Just don't start acting like Boyd. Can I look over your
    > shoulder just to make sure you don't burn down your RV?
    >


    I was kinda hoping he'd wait until PNWCO11 - we MIGHT have just enough
    supervisors for a job like that. And, either way, we'd have plenty of
    entertainment.

    Alan

    > Ben
    >

  4. #4
    Ben Hogland
    Guest Ben Hogland's Avatar

    Default RV: Water Heater Lightning Rod

    >
    > "Ben Hogland" <benhogland@...........m> wrote in message
    > news:45njqqF7kqdkU1@..................
    >> "Kevin W. Miller" <i09172@strudelyahoo.com> wrote in message
    >> news:EpidnfmOfuc7dGjenZ2dnUVZ_vydnZ2d@giganews.com ...
    >>> Next month I think I'll convert the RV from 30 amps to 50 amps.
    >>> Since I'm such a master electrician now.

    >>
    >> Oh sheesh. Just don't start acting like Boyd. Can I look over your
    >> shoulder just to make sure you don't burn down your RV?
    >>

    >
    > I was kinda hoping he'd wait until PNWCO11 - we MIGHT have just enough
    > supervisors for a job like that. And, either way, we'd have plenty of
    > entertainment.
    >
    > Alan


    I like the idea. We would have enough people with cameras to take
    pictures of the ensuing fire if it's connected incorrectly and available
    fire extinguishers from all our rigs to help put it out. ;-)

    I'm with Alan.. Can you wait until the PNWCO11.

    Ben

  5. #5
    canoli
    Guest canoli's Avatar

    Default RV: Water Heater Lightning Rod

    >
    >I just installed one of these in our Winnie tonight. Took about 2-1/2 hours.
    >Looking forward to having hot water without the propane use when power is
    >available.


    When my WH developed pin holes in the tank, I replaced it with a two
    way - gas, electric - model, and thought as you do that using just
    shore power would be beneficial.

    After running it electrically for three months, I went back to propane
    because of cost and inconvenience: My gas costs went down but the
    increased use of shore power ran my electric bill up well beyond
    normal propane cost. On top of that, I enjoy long hot showers, and
    generally wallow for ten to fifteen minutes at a time. The gas-powered
    WH cycles on when the temperature falls below factory setting, as does
    the electric, but seems to be much more efficient at providing hotter
    and quicker tank refills than in the electric mode..

    We turn off the WH propane every night so we don't have the noise,
    plus there's always hot water when we get up. Next thing I'm going to
    install is a Jacuzzi: I haven't told my wife yet but I'm sure that
    won't be a problem, he said with his fingers crossed.

    Canoli

  6. #6
    HD in NY
    Guest HD in NY's Avatar

    Default RV: Water Heater Lightning Rod

    > On Sat, 18 Feb 2006 05:36:02 GMT, canoli@.............. wrote:
    >
    >
    >>After running it electrically for three months, I went back to propane
    >>because of cost and inconvenience: My gas costs went down but the
    >>increased use of shore power ran my electric bill up well beyond
    >>normal propane cost.

    >
    >
    > Hi Canoli,
    >
    > The Hott Rods use alot less electricity than the kind of electric
    > water heater you installed.
    >
    > I personally like everything electric.... the less I have to drag one
    > of these heavy propane tanks to be refilled the better.
    >
    > Hunter


    I don't agree there would be any difference in cost of
    electric. The lower wattage unit will use just as much
    electricity as the higher wattage unit. The reason is
    because it takes x amount of btu's to heat the water so the
    lower wattage will stay on longer than the higher wattage.

    Canoli is saving money because he is only turning on his
    heater when he needs/wants it, so he is using less btu's per
    day.
    Hugh

  7. #7
    Ben Hogland
    Guest Ben Hogland's Avatar

    Default RV: Water Heater Lightning Rod

    > I don't agree there would be any difference in cost of electric. The
    > lower wattage unit will use just as much electricity as the higher
    > wattage unit. The reason is because it takes x amount of btu's to heat
    > the water so the lower wattage will stay on longer than the higher
    > wattage.
    >
    > Canoli is saving money because he is only turning on his heater when
    > he needs/wants it, so he is using less btu's per day.


    That's the way I normally operate my hot water thank too. i.e., I turn
    it on when I need it then turn it off when I'm done. Normally that
    means I still have warm water throughout the day to wash hands and such.
    The only problem with that method is sometimes I forget to turn it off
    and find it's been heating all day. I think the water tank uses more
    propane than say the refrigerator and is noisy when on especially since
    my bed is right on top of it. I like the idea of the electric element
    upgrade since I've yet to be in a campground that charges for
    electricity by the amount used. Same price if you have two 1500 watt
    heaters on vs. no heaters at all thus it's far cheaper for me just to
    use the electricity available if I get a site with utilities. I just
    haven't gotten around to installing one yet. Maybe Kevin will show me
    how it's done.

    Kevin, is "Lightning Rod" the brand name? Where did you buy it? I
    actually like that the thermocouple/thermister attaches to the pressure
    relief valve. Sounds easier to install than the others.

    Ben

  8. #8
    Alan Robinson
    Guest Alan Robinson's Avatar

    Default RV: Water Heater Lightning Rod

    >
    > Me too. I did that at work the other day but not so effectively. I
    > parallel ten 0.5 ohm extremely large wattage resisters in parallel such
    > that it would handle 600 amps (I thought). It melts wire if you don't use
    > the proper gauge wire to connect them. I saw first hand that I calculated
    > wrong. A few fans and 1 gauge wire to each branch worked fine (and was
    > overkill but did work very well). The heat it put off was amazing. A
    > 18,000 watt heater. I kid you not. I really felt like MacGyver when I lit
    > a cigarette on one of the resister coils (very carefully). <grin> It was
    > almost scary to be driving a aircraft generator that hard.
    >
    > Ben
    >


    Then you'd LOVE the loadbank I use for gensets in the 10-50kw range.
    Basically the heater elements from two electric furnaces mounted on a
    handcart with a 3/4 hp blower moving air through them, and switches to allow
    connecting/disconnecting elements as needed. Have to be careful where the
    output air is pointing, as it's about 180f when everything is switched
    on....

    Alan

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