Whole house generator, air cooled vs water

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    Whole house generator, air cooled vs water

    I am building a house at the front of my property. It is my future retirement home but it’s first use will be a place to look after my 81 year old father. The house is 2000sq feet, 3br 2.5bath
    32x50 attached garage. I am wanting to install a propane back up generator during construction. Power is all underground on my property but everything is on overhead power lines off the property. Power goes out just often enough that I want back up power.
    I am looking at 22kw. Probably generac. Air cooled is $4200, water cooled is $9000. In the 13 years since I built my shop here power goes out on average 6x a year, usually for 2-6 hours. Average 20 hours a year. Having a woman and child at home tending to a senior I want to make it as easy as possible for them. From what I can find air cooled will be fine. Having never had a stand by whole house generator, I have no first hand knowledge.

    #2
    air cooled all day long for something that you aren't planning to run for hours on end.


    Up is difficult, down is dangerous

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      #3
      I bought a ex Military generator 10KW single and three phase that has worked great for the past few years for my home and shop paid 1500.00 for it from an online auction website.

      This one has a 4 cyl diesel engine, water cooled.

      Drove about 500 miles to pick it up, have been satisfied with its performance.

      If you like PM for info on source.

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        #4
        Every new house and about 30 percent of older houses around here have Genrac air cooled. A couple of my neighbors must be over 30 years old. Use Synthetic oil and it will outlive you. Love mine but hate my 5 year old Genrac load sensing transfer switch. Looking into replacing it soon.

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          #5
          https://www.adelmans.com/detroit-die...-500kw-16v92tt

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            #6
            I could power my own sub station with that. I am just trying to make life as easy as possible for woman and chid while they are tending to a senior that wants Netflix on the television while sitting on the toilet, with cold ac blowing and a c-pap machine on. Not that all of that happens at the same time. Having been the one that provided for my mother and grandfather prior to their death and now my father I have learned that most old people are afraid of death. Losing power is the end of the world for my father. I have never lived with him, was raised by my mother. We do not share the same outlook on life or death.

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              #7
              Do not buy or install anything until consulting waterhorse on this one!!!!!

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                #8
                Air cooled
                Less systems on said generator to break

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                  #9
                  Do you have a pool? Does it need heating?
                  - Buck

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                    #10
                    Hundreds of local homes have air cooled. No complaints. Screw a water pump, fan, rad., etc. for $4k.
                    Last edited by Etyler2; 07-22-2020, 12:45 AM.

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                      #11
                      I’d go with air cooled for the amount you expect to use it. If you have days or weeks of outages water cooled would justify the added cost and maintenance. A monthly exercise schedule with a full transfer would be ideal if the transfer switch will do a synchronized transfer back to normal power.

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                        #12
                        Generac dealer here. Go with the air cooled. There is no need for water cooled for a residential installation. You’ll like the 22kw, it’s a great machine for the price.

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                          #13
                          Have a tractor? Consider a PTO unit.

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                            #14
                            air cooled 20-22kw NG for home standby use if you are under 100 hours a year of use.

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                              #15
                              The air Cooled unit is a 3600 rpm unit the big price jump to the liquid cooled unit also likely shifts it to an 1800 rpm unit.

                              I have a cummins 4B powered Kohler that I use, manual transfer only which is fine since most of my power outages are associated with hurricanes or other storm events. The neighbors have commented on the noise difference in between mine and the rest of the 'hood. Mine is quiet you smell the diesel exhaust more than hear the noise. I hear the neighbors installed units and portable ones unless I'm standing within 30' of mine. The point of my rambling is to be choosy about where you put the genset when installed as it will be noisy.

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