5/29/2023 0 Comments Quiet definition![]() (In 2020, CR expanded its safety tests to distinguish between generators that simply have these safety features and those we’ve found to be demonstrably safer in various scenarios.) Only portable and inverter generators with the automatic CO shutoff can earn our recommendation, regardless of how well the models perform otherwise. You can best ensure your household’s safety by choosing a recommended model from CR’s inverter generator ratings. But that’s also true of most of the traditional portable generators in our ratings. Most of the inverter generators in our ratings have the automatic CO shutoff. Inverter generators are not inherently safer than other portable generators. The best generators come with both features. And some also have engines that emit less CO in the first place. To further reduce the risk of carbon monoxide poisoning, some new portable generators feature a built-in sensor that triggers an automatic shutoff if CO builds up to dangerous levels in an enclosed space. Like other portables, inverter generators should only be used outside in an unenclosed area, at least 20 feet from your home, with the exhaust port pointing away from your dwelling. In contrast, none of the traditional portable generators does better than middling, and quite a number score below that.Ĭarbon monoxide (CO) poisoning is a serious risk with all portable generators that aren’t used properly. ![]() Many inverter models in Consumer Reports’ generator ratings earn very good or even excellent scores for noise. ![]() “Inverter generators are generally quiet enough not to drown out nearby conversation,” Kollontai says. Inverter generators also produce lower emissions.Īnd the noise difference between inverter and traditional portable generators can be significant. That efficiency means you won’t have to fill up the gas tank as often that could be useful if fuel is hard to come by after an emergency. "An inverter generator only ramps up as high as it needs to," says Misha Kollontai, the Consumer Reports engineer who oversees our generator testing. Inverter generators electronically throttle the engine up and down to meet demand, instead of running full tilt all the time as traditional generators do. But their benefits-which have to do with how they work-may make up for that negative.
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