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| | Absolute Power | THIS OLD HOUSE |
 | | Depending on their power capacity, standby generators can power almost everything in your homeheat and lights, security system, well or sump pumps, refrigerator and freezer, water heater, air conditioner, medical support, television or computer for days or even weeks. |
 | | When power has been restored, the switch shuts down the generator and shifts your home back to utility power. |
 | | Most residential standby generators are powered by natural gas or liquid propane, fuels that can be piped directly to the unit if you are already using either of them as fuel for your home. |
| www.thisoldhouse.com /toh/knowhow/electrical/article/0,16417,203387,00.html (490 words) |
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