Best generator for small home backup
If you live in a smaller home or condo, you probably don’t need a massive whole‑home standby generator to ride out an outage. But you do want enough power for your essentials: fridge, some lights, phone charging, internet, and maybe a small window AC or space heater.
1. How many watts does a small home really need?
Most small homes fall into the 3,000–7,500 running watt range for basic backup. The exact number depends on how many large appliances you want to run at the same time.
A simple way to think about it:
- 3,000–4,000W: fridge + lights + Wi‑Fi + TV or laptop + a few small appliances.
- 5,000–6,500W: above, plus a well pump or small window AC.
- 7,500W+: the above, plus more rooms or larger AC loads.
For a personalized estimate, start with the main generator sizing calculators on GeneratorCalc and list out the exact devices you care about.
2. Best generator types for small home backup
You have three main categories to choose from:
- Inverter generators (3,000–5,000W)
Quieter, more fuel‑efficient, and better for electronics. Great if you live close to neighbors or value low noise. - Conventional portable generators (5,000–8,000W)
More watts per dollar, a bit louder. Ideal if you want the most power for the lowest price. - Small standby systems
Higher cost and professional installation, but automatic and hands‑off operation.
3. Recommended starting points
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- 3,000–4,000W inverter generators – good for basic essentials.
- 5,000–7,500W portable generators – solid choice for most small homes.
- Entry‑level home standby systems – for automatic backup.
Use these as a starting point, then filter by brand, fuel type, noise level, and budget.
4. Next steps: plan your connections
Once you’ve picked a size and generator type, think about how you’ll connect it:
- Extension cords for just a few loads.
- Inlet + transfer switch to power key circuits safely.
- Interlock kit in some panels, installed by an electrician.
Talk to a licensed electrician before modifying your home’s electrical system.