Editorial policy

Sourcing and accuracy

Running- and starting-watt figures, kW classes and appliance wattage tables follow manufacturer spec sheets and the sizing conventions installers actually use. Cost ranges are aggregated estimates built from published pricing and typical installation line items, explained in full on the About page. Brand comparisons state plainly what was compared — fuel type, transfer-switch compatibility, noise level, warranty — rather than claiming an independent lab test we didn't run.

Kept current

Generator model lines, prices and specs change as manufacturers update their ranges. We review and refresh cost data, model picks and brand specs as they shift, and safety guidance is checked against current National Electrical Code (NEC) conventions and manufacturer carbon-monoxide warnings.

Independence from advertising

Advertising never changes our answers. No manufacturer pays for a better ranking, pick or write-up — see how we make money for the full disclosure. The sizing recommendation and cost range you see are identical whether or not you click an affiliate or partner link.

Corrections

Spotted something wrong or out of date? Tell us through contact with the page and what looks off, and we'll review it and correct it.

Not professional advice

Everything on gennyguide is general information, not an engineering calculation or electrical, legal or financial advice. Whole-house installs must be sized, permitted and wired by a licensed electrician; portable generators must always run outdoors, away from windows and doors. Confirm your own project with a qualified professional before you buy or install.