Big and honkin? Nope. You need a small generator and a power pak... or two. Check out the Honda generators in the 1kw to 2kw range, and the power paks in the 800 range. Great combination. And some 13w light bulbs. These will keep your small stuff running for weeks with a minimum of gasoline.

As for heating or AC for medium size houses, PM me if you want specs for gennies and emergency panels and hookups to a big honkin gennie (6.5kw or better).