I kinda remember that movie... it had that scene where the eyepatch guy who came to rescue them lit a candle in one part of their house and then ran into the kitchen and opened the oven and turned on the gas so that it would blow up when they were a safe distance away... I also remember trying to recreate this with my friends at summer camp when I was about twelve
Too bad the shack we were trying to blow up had all of its windows broken; the gas just dissipated and didn't reach the flame...