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Small Natural Gas Powered Generator

Discussion in 'Home Power and Microgeneration' started by Lucas Tam, Jan 13, 2004.

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  1. Lucas Tam

    Lucas Tam Guest

    Hi all,


    I'm looking to install a backup generator to power a well water pump, pool
    filter system, as well as 2 fridges. I noticed that most Natural Gas
    generators for home use are in the 10,000+W range which seems to a little
    large.

    Does anyone have a recommendation for a small natural gas generator? Maybe
    in the 5000 - 7500W range? Would that be sufficient?

    Thanks.
     
  2. The Superior Power Sentinel 9 is rated 8.2KW on NG, is very quiet, and
    has worked well for us! Call Power Equipment at 508-226-3410 for
    details.
     
  3. Guest

    A 5KW gen sounds small I run a 5KW diesel genset now and it cannot
    handle everything you mentioned. Starting loads are a lot higher than
    name plate amps.
    Offgridman
    Lucas Tam wrote
     
  4. Lucas Tam

    Lucas Tam Guest

    Thanks for the info. Is there a good way of calculating starting loads?
     
  5. SQLit

    SQLit Guest


    Starting amps can be as much as 6 times running current. Watch out for
    clothes washing machines when they go into spin mode..... It depends on the
    load. If you give your self 6X you will not have a problem. Also watch out
    for voltage drop. You should keep it with in 5%, source to last load. Unless
    your last load is a light bulb in the out house then I would not worry about
    it... Humor intended for last statement.
     
  6. Guest

    Check each appliances metal plate for the running amps and voltage. I
    would use three times running load as the multiplier for my estimate.

    Offgridman
     
  7. Unfortunately, no. I've got two large and one small AC units, and my
    8.2KW generator will start the two large ones but not the small one.
    Go figure. My Fluke 87 DVM in peak-reading mode saw a 65-amp reading,
    where the others only do 40 amps peak (and 12A running).
     
  8. daestrom

    daestrom Guest

    Ain't life grand? Go figure!!

    Probably the designers of the larger units *knew* that starting would be an
    issue so designed the motor & controls to start them unloaded and as 'soft'
    as possible.

    Where as the designer of the smaller unit figured, "What the heck, it ain't
    that big, just throw it on the line and let 'er go!"

    daestrom
     
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