How to Size an Automatic Backup Generator For My Home

Home Standby Generators were recently dubbed the “Next Must-Have Appliance”

These technologically advanced machines protect homes and families by supplying power that keeps the lights on, the air conditioner or furnace running, and food in the refrigerator and freezer safe from spoilage. They power sump pumps, medical equipment, computers, lights, and kitchen appliances.
A power outage is detected the moment it happens and the generator automatically starts. After a few seconds to reach operating speed, the automatic transfer switch isolates the home from the utility and connects it to the generator which protects both your home and the utility from unexpected line hazards. In just seconds, power is restored and life goes on uninterrupted.

Choosing the right generator is important, and the first step determines how much power you actually need. Too small a unit may not handle a central air conditioner and keep the pumps running that keep your basement dry. Using too large of a generator is inefficient and wastes fuel.

Generators are rated in watts or in kilowatts(kW). 1000 watts equals one kilowatt. Appliances are often rated in amps, amperes, volt-amperes or sometimes watts and kilowatts. Deciding which electrical circuits and appliances to power in an emergency is the first step to sizing a standby generator for your home.

Tip: Don’t let physical size fool you. A hair dryer can use 1200 to 1875 watts all by itself, while an energy-saving LED light bulb might use as little as 6 watts. (US DOE)

Choose a Generator

Avoid choosing the bare minimum. Power requirements just don’t decrease for the vast majority of homeowners. A bigger freezer or refrigerator. A new, more powerful sump pump. Someone needs medical equipment. The new television for the rec room or den.

Generacl offers a wide array of air-cooled generators for most homes, and liquid-cooled models for larger homes and luxury estates.

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