Fun game! I really liked the fire spread effect, it sold the entire game. I did feel a panic when I saw the number start to rise and someone shouting "help" from somewhere. The particle effects on the fire were a very nice touch and the destructibility felt believable.
One thing you could do to improve would be to put the health as a bar above the player similar to the water bar. I didn't notice I had hearts until near the end of my play through. You could also try merging the health bar and water bar into some nice duel purpose design and make the player choose between getting more water or trying to push forward and possibly being caught in the fire.
Overall fun game and super underrated for the jam!