Thanks very much JY! I will dig more on this one. The key is the

来源: jessefan 于 2012-07-07 08:26:02 [] [旧帖] [给我悄悄话] 阅读数 : (204 bytes)
回答: natual gas generator at costco.. 由 jy101 于 2012-07-07 08:12:19

How difficult to install it by yourself or your contractor? I have heard that some back up generators in my area couldn't start at power outage even they were installed by the professional company.

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