Corrected entry: The water feeds are shut off to make the boiler blow up and in reality there are safeguards to prevent the boiler from doing itself harm. It would have shut itself off before the destabilization happens.
Corrected entry: Forty years after Delbert Grady manipulated Jack Torrance into attempting to kill Danny and Wendy, Danny brings Abra to the abandoned Overlook Hotel for the final battle against evil Rose the Hat. Danny returns to his parents' old room and looks inside the bathroom. In "The Shining", the bathroom window was left open after Wendy and Danny escaped. Yet in this film the window is closed. This doesn't make sense because everything else in the Overlook Hotel is the same as it was in 1980.
Correction: It's not really a continuity error. Danny says that after the events in 'The Shining'... "They shut the place down and left it to rot." Given that Danny had to use a crowbar to open the doors (which were also left open by Wendy as she was the last person to use them) it's safe to assume that shortly after the events of 'The Shining', someone visited the Overlook to collect Hallorann's body and lock the place up.
Correction: Not all boilers have fail-safe systems built into them, I think it would be safe to say that given the age of the Overlook, the boilers would be from a time when they weren't standard.