In this video, we learn how to adjust the flame on your RV water heater. First, open up the area where your gas valves are. Find the air opening to make a smaller air adjustment. The setting should be 1/4 of the way open. Snug down the locking screw when you have adjusted it properly. Now, you have to fire up the water heater by turning on the water heater switch first. Once the main flame is lit, you will see it with a nice blue color. Play with the adjustment some more until it's adjusted how you want it to be and then you're finished.