

It may have been a rate of rise vs a hard upper limit for the heat detector. If it was, about 8-10°C / 15-20°F change per minute would set it off. Makes sense for it to go off over an oven. The hard upper limit type are single use, I don’t know if that causes them to repeatedly go off or not.
Either way with more regulated short term rentals, a fire inspection would likely have flagged that.
thank you