Reviews, Model by Model

These pages take one machine at a time and answer the question a roundup cannot fit: what does this specification actually mean for my house, and what is this manufacturer not telling me?

What a review here is, and what it is not

It is a close reading of the published specification, the outlet configuration, the fuel figures and the warranty, set against what a house actually demands — plus an explicit note wherever a manufacturer omits something its competitors publish.

It is not a test report. We have not run these machines, we do not own them, and we do not operate a test lab. The category is full of pages claiming hands-on testing of a dozen 250 lb generators, and we are not going to join them — our methodology page says exactly what we do and do not do. The compensation is that the gaps in a spec sheet are visible to anyone willing to read carefully, and reading carefully is the whole job here.

The omissions we look for every time

• Running watts on every fuel. Champion and WEN publish all three for their tri-fuel machines. DuroMax largely does not. That gap matters if propane or natural gas is your plan.
• A decibel figure with a stated distance. Honda and Champion give both. Several brands say "super quiet" and publish nothing, or compare the noise to a conversation.
• Total harmonic distortion. Published by every inverter machine worth buying, and by a few conventional ones. Its absence on a machine sold on its inverter credentials is worth noticing.
• CO shutdown. Now common, still not universal, and absent on some otherwise strong units.
• Neutral configuration. Bonded or floating decides whether an inverter generator will work with your transfer switch at all.

How to read the scores

Each product carries per-criterion scores and a headline figure out of ten. These are our editorial judgments, compiled from the published specification against what we think matters for home backup. They are ordinary page content and nothing more — we deliberately never emit them as structured review data, because a score derived from a spec sheet is not a product review rating and marking it up as one would misrepresent what it is.

The scores also weight differently by category, which is intentional: fuel flexibility matters for a generator and is meaningless for a transfer switch, while panel fit certainty is the whole story for an interlock kit.

If you came here from a search for one model, read its page and then follow the link back to the roundup it appears in — the comparative context usually changes the decision. If you do not yet know which model you want, start at the sizing calculator instead; it is a better use of ten minutes.