If you have occasional needs during a brief power outage to simply run a few small appliances or lights, then a standard generator with a side valve (SV) engine of 2,000 watts is a realistic choice. If your home or business needs a dependable backup power source for extended power outages, then an overhead valve (OHV) or overhead valve industrial (OHVI) engine will be required. 3,500 watts or higher should do the trick.

Other features to consider are a spin-on engine oil filter; automatic voltage regulation (AVR); idle control; and 12-volt charging capability.

Remember, a generator is not a nifty toy or a really neat appliance. It is a powerful machine that can run serious appliances, such as furnace blowers, sump pumps, well pumps, televisions, lights, air-conditioners, electric stoves and microwave ovens.

Before you buy, check the safety tags on your appliances for wattage information. Generators are rated for both continuous running wattage and for surge wattage (just a few seconds) for starting an electric motor. You need a high rating for both. You want to not only be able to run a sump pump, for example - you also want to have the surge wattage necessary to start the engine.

The following are basic things you need to know before you begin shopping for your generator:

• Stationary Generator: If you don't have one, buy one now, before the storm. Stationary generators are more expensive, and they require a licensed electrician to install a separate "transfer switch" for safety, which allows you to run pre-selected lights, a refrigerator, air-conditioning and water. If you can afford it, this is the generator to buy.
• Portable Generator: Portable generators are ideal for emergency power at a moment's notice. However, they run on gasoline, and they must be kept outside the home. The deadly carbon-monoxide that it generates can kill you in your sleep. So prepare now, with a sturdy, outdoor shelter. Add a padlock if looters are a concern.
• Carbon Monoxide Detector: This is essential if you have a generator. They are battery operated, and you should have extra batteries. This can save your life, for a small expense.

You do not need to see your family suffer through a power outage without the things they need for health and safety. Buying a generator is a big decision, but it just may be life-saving, and that makes all the difference in the world.