Backup generators: essentials or the whole house?

Write down what must keep working.

List the refrigerator, sump or well pump, heating controls, lights and other loads you actually need. Separate essentials from conveniences such as central air conditioning or an electric range. Ask an electrical professional to assess running demand, motor starting demand and which loads may operate together. House size alone cannot settle that decision.

Portable generator safety comes first.

Operate portable generators outdoors only, at least 20 feet from homes and buildings, with exhaust directed away from openings. Never run one in a garage, shed or enclosed shelter, even with doors open. Have working CO alarms on every level and outside sleeping areas. A CO shutoff does not make indoor use safe. Follow CPSC carbon-monoxide guidance.

Never feed power into a wall outlet. Have a qualified electrician specify and install approved transfer equipment for any connection to household wiring. Follow the generator manual for cords, wet weather, cooling before refueling and fuel storage. If your property cannot accommodate safe use, choose a different backup plan.

Ask for an installed quote, not just a machine price.

• Exact model, output on the selected fuel and the circuits it will supply.
• Load assessment, motor starting needs and any automatic load management.
• Transfer equipment, installation location and the manufacturer’s required clearances.
• Fuel piping, tank or meter work; electrical work; pad and site preparation.
• Permits, inspections, commissioning and an owner operating demonstration.
• Service interval, fuel consumption at stated loads, warranty terms and local repair support.

For a standby system, ask the installer to verify siting and exhaust exposure for your property and neighboring homes. Portable-generator spacing is not a substitute for an engineered standby installation.

A starting point for a professional assessment.

Explore Generac home standby systems and its dealer estimate process (opens in a new tab). Generac describes permanently installed systems using natural gas or propane and automatic transfer equipment. Compare itemized local quotes and service arrangements before deciding. This is a manufacturer reference, not a tested recommendation or an affiliate relationship.

Do not assume a large generator will run every load simultaneously or provide uninterrupted electricity. Ask about startup delay and a separate continuity plan for equipment that cannot tolerate interruption.

A useful next step today.

Make a one-page list of essential loads, your fuel options and where equipment could safely go. Take it to an installer before selecting a model. For smaller needs, start with power and light. Also check household alarms and keep an evacuation plan if remaining home becomes unsafe.

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