This is not a contest between two products — it's a choice between two backup strategies. A PowerProtect is a permanently wired home standby that starts itself seconds after an outage and runs unattended on natural gas or propane. A Honda EU inverter is a portable you carry out, fuel by hand, and plug into. The honest way to choose isn't a feature war; it's three thresholds. Cross any one of them and the answer flips. The Briggs Stratton Generator sits at the centre of this comparison.
"A portable inverter covers me — outages are short and I'm always around to run it."
Often true, right up to a line you can compute. A Honda EU2200i delivers 1,800 W running / 2,200 W starting; an EU7000iS delivers 5,500 W running / 7,000 W starting, and two parallel to about 14,000 W. Those are real, clean-sine-wave watts. But a portable only covers you while a person is present to set it up, fuel it, and manage which circuits run. The threshold isn't a feeling about outage length — it's a continuous-watt number and an attendance assumption.
Threshold 1 — the continuous-watt lineIf your must-keep load stays under about 5.5 kW continuous (one EU7000iS) — or under ~14 kW with a parallel pair — and someone is home to run it, the portable strategy genuinely covers you. The moment your essential continuous load climbs toward the whole house, you've crossed into 24–26 kW standby territory the inverter simply cannot reach, and no amount of efficiency closes that gap.
"I'll just refuel it now and then — gasoline's easy."
Easy while you're awake and home; impossible while you're not. The EU7000iS runs up to ~16 h on its 5.1-gallon tank (~0.32 GPH at a moderate load); the EU2200i up to ~8.1 h on 0.95 gallon. Every one of those windows ends with a person carrying a can. A PowerProtect, wired to the gas main or a propane tank, runs unattended for as long as the fuel and oil last — through the night, through the first day you're away, without anyone touching it. Fuel burn on either machine still tracks load times bsfc; the difference is who has to be there when the tank runs dry.
Threshold 2 — the unattended-hours lineIf any plausible outage could run more than ~8–16 hours with nobody available to refuel — an overnight storm, a workday away, an evacuation — the portable delivers zero watts the instant its tank empties. That single attendance gap, not peak wattage, is what pushes most whole-home buyers to the self-starting standby. If you can guarantee a person and a fuel supply at every refuel interval, the line hasn't been crossed.
"The Honda's so quiet and thrifty, it's the smarter machine."
For the job it's built for, yes — and that job isn't the standby job. The EU-series runs at a super-quiet ~48 dB(A) (EU2200i) to ~52 dB(A) (EU7000iS) because it's a small, partly load-following inverter built for campsites and tailgates; the PowerProtect's ~68–69 dB(A) is a full home-standby engine at rated speed carrying a house. Quiet and thrifty describe a machine sized to 1.8–7 kW. They say nothing about whether it can carry a 5-ton compressor's locked-rotor surge — which can exceed a single EU7000iS's 7,000 W starting figure on its own — or the rest of the house behind it.
Threshold 3 — the surge lineIf your largest single motor's starting surge fits under the inverter's starting watts (≤2,200 W for the EU2200i, ≤7,000 W for one EU7000iS), the quiet machine can actually start it. If any one load — central AC, well pump — surges past that ceiling, the inverter's quietness and efficiency are unspendable, because it never reaches the load. The PowerProtect's 24–26 kW carries that surge and the house together; that's the whole reason it's louder.
| The deciding number | Honda EU inverter (portable) | PowerProtect (standby) |
|---|
| Continuous capacity | 1.8 kW (EU2200i) · 5.5 kW (EU7000iS) · ~14 kW paired | 24 kW NG / 26 kW LP |
| Starting watts (surge) | 2,200 W · 7,000 W · ~14,000 W paired | Whole-house transient, carries large motor LRA |
| Unattended runtime | ~8–16 h, then hand-refuel gasoline | Indefinite on NG/LP, self-starts via ATS |
| Noise (its own job) | ~48–52 dB(A) | ~68–69 dB(A) at load |
| Upfront / portability | Lower cost, fully portable, no install | Higher cost, fixed install, automatic |
Notice that none of the three thresholds is about which machine is "better." Each is a number you can check against your own house: a continuous-watt figure, an unattended-hours figure, and a surge figure. The portable wins cleanly on the small, attended, low-surge side of all three; the standby wins cleanly the moment you cross any one of them — and crossing even one is enough.
The decision rule, with numbers
Run your house against three lines. (1) If your essential continuous load exceeds ~5.5 kW (or ~14 kW for a Honda generator pair), the inverter can't carry it — choose the standby. (2) If any outage could run more than ~8–16 hours unattended, the portable goes dark when its tank empties — choose the standby. (3) If your largest motor's starting surge exceeds the inverter's starting watts (2,200 W single EU2200i, 7,000 W single EU7000iS), it can't start it — choose the standby. Stay under all three lines and a Honda EU inverter is the lighter, quieter, cheaper, correct answer — there's no shame in the smaller job. Cross any one, and the PowerProtect standby is the tool the work actually requires.
Topology/standards per the cited standards; all product ratings are manufacturer-stated values from the cited datasheets, current to 2026-06; derived/illustrative figures are labelled as such. This is not an independent head-to-head test. Briggs & Stratton generator is a brand affiliated with this site; competitor names are used for identification only.