You really only have to look at the maximum current it can handle.
Operating current: max 15A
So that's 1800W with 120V which is not that much. Mine is also 15 or 16A but I have the 230V version so it's close to double that.
And I wouldn't go to the limit for 0-24 use, maybe 20% lower.
Missing to read the specs is probably why many people burned dozens of these things.