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    moondoggie0000's Avatar
    moondoggie0000 Posts: 4, Reputation: 1
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    #1

    Feb 2, 2009, 12:15 AM
    Buying the right emerg. Generator
    I would like to buy a small generator to use when the power goes out. I need one that will run the refrig. A few lites and a water pump (it is used to run the water catchment system for the house). Is 5000 watts needed ? More /less
    Thanks
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Feb 2, 2009, 01:17 AM

    <Moved from tools and power equipment>
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #3

    Feb 2, 2009, 04:33 AM

    Take a look here:

    Generator Sizing Chart - Yamaha Motor Corporation, USA

    You have to use the wattage to start motor loads. Actual nameplate data would help. A 1/3 hp pump and an average fridge come to 1400 + 2200 or 3600 VA or watts. This assumes that they can both start simultaneously.

    Lighting which would be small would be added to that. Having room to run a microwave wouldn't hurt, but at the sacrifice of turning off the other loads.

    There are varients of three ways to do the transfer:

    1) A transfer panel with loads pre-selected
    2) A main/generator mechanical interlock switch
    3) Whole house with or without load shedding

    Then there is the choice of automatic or manual. Finally there is the choice of natural gas/propane and even dual fuel generators even for the small ones.

    Fuel consumption and the availability can become a problem in some cases.
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