What kind of generator?

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Q. We’re trying to decide whether to put in a whole house generator or, as our electrician friend suggested, just a portable that gives enough power when we need it. I keep seeing better and quieter stand-alone models in my Internet search, but wonder if it’s worth the expense to install a big unit that has to be run once a month just to be maintained. What do you think?

A. Over the years I, too, have debated about which way to go. My only advantage over most consumers is that I see the installation, the permit process (yes, you do need to file for a building permit) and the sticker shock of clients installing generators. Electricians are the best way to go to install one, although a friend told me he did it himself. There are issues with surges, compatible harmonics and power conditioning. Most-do-it-yourselfers may not know the possible dangers.

I appreciate that people want the monster generator so the lights just keep burning and the air conditioning keeps humming after everyone else sees their lights go out, but you have to consider cost vs. the number of times you’ll need the monster vs. dragging out a rolling model that you keep in your garage. You still have to run the portable models so that the oil can circulate; just like any engine, parts need regular lubrication. A rolling unit can be kept above a flood and moved into place for use, while a stationary unit just gets submerged. Having a hookup to your home gas line is great, and more trouble-free than lining up at a gas station at 4 in the morning, and a preset installed panel for the portable also helps.

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