bikerboy108
1. Did a whole bunch of calculations with online calculators and never came up with much more than 12 kw for generator sizing... 2,800 sq. ft. All natural gas house... 1 small microwave,Gas stove/oven , Gas HW base board, Gas HW, Gas Dryer , TV , computer, 2 garage door openers, Two fridges, one small in basement , med. in kitchen. normal lites and odds and ends....with only 220 1/2 hp submersible well pump..( I'm cutting out the AC as not really needed when 99% of power outages occur) So I am getting a Natural Gas 16KW Generac Guardian and a 150 AMP whole House Auto Transfer Switch ( since main panel is 150 AMP Service and I was told Transfer has to match Main Panel) Any one see any issues ????

2.Electrical Inspector said he wanted a load calculation ?? didn't seem too "Anal" as he said oh just go to Generac and use their sizing calculator.. Doesn't really tell you wattage total just what generator to buy and not really printable...
Soo looking for an easy to print sizing calculator with total kilowatts easy to see... I think he just wants to have it in writing so I get blamed when house burns down... :-)
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78buckshot
So it looks like you have a boiler for heating, I assume you have an air handler in the attic for air conditioning. If your going with the whole house transfer switch then the generator has to be sized to handle the whole breaker panel load, I think you have figured that out. The transfer switch will have a load shed module that can be used for the a/c and you might as well use it. How many tons of a/c do you have? I'm guessing 4 - 5 tons. Call Ziller and ask them to mail you a sizing chart.
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patmurphey
...excluding SMM loads, for load calc.
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bikerboy108
Going to cut the AC out of the system since the LRA is 169 and the 16 kw is rated at 130 LRA ..I could get one of those smart start modules But ...99% of my outages are in cold weather so that part doesn't bother me...Thanks for the input
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Geoff Z
You can address the AC at a later time if you choose to. Sure Start Soft Start will get you about a 60% reduction on that 169 LRA. You can google NEC load calculation worksheet. There are "plug and play" worksheets out there. Put your values in, print it, hand it to your inspector. He sounds like a reasonable guy.
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