Is it even legal to install 100k BTU burner in a residential application? I have a reasonably nice cooktop and the total BTUs of all burners is significantly less than 100k.
I wouldn't be surprised if there are places where it is, but I can't find any limit in my local ordinances. For consumers, you're just not going to get a 100k burner in general - I can find a few prosumer ranges that get up to 35k or so on a single burner, but nothing remotely close to what you would see in a professional Chinese kitchen.
For stir-frying I have a 270k BTU propane burner I use outside. I wouldn't want to dump that much heat into the inside of my house in general, unless it was winter I guess.