CO events.... most Winters, happens here. Often, New Canadians, but not exclusively. One of the former, last Winter or one before, put the whole family in hospital, with an extended warm-up of a car, inside an attached garage.
So, that's why the industry has put them on new generators. I don't have a new enough one, yet, but if I did, I'd probably glance @ the schematic, so I'd know how to bypass if/when it fails.
Typing that ^, brought me to: household (Kidde etc) CO sensors time out/expire @ something like 7 years. Anybody know the lifespan-story on what Gen manuf are spec'ing ?
Then there is the general problem of lowest bidder sensors, failing prematurely..... had an extended conversation with my HVAC-contractor neighbour recently, about explosive-vapour sensors that are mandated on natgas hot water tanks. I'd read a detailed post on the Home Depot site, from a homeowner that was aggressively refused warranty-service on a vapour sensor failure, just months after installation. (Excuse was "Because you painted the basement".) These ^ sensors fail randomly, often for no explainable-cause.
It's also gotten worse lately, with building A/C. Latest "refrigerant" is basically Propane, sans odourizer. Wish I was joking. So.... these new systems will come with all sorts of extra safety systems too.....
I'm pro-safety. Uncommon-Sense could cure most of these problems, but can be Dodo-rare today. What does NOT impress me is mandated-shutdown systems, cheaply done.
Lacking hot-water is annoying. A no-start generator @ -40C/F, or when my sump is rising @ x feet/hr.....
Rgds, D.