HI I have a wave 3 heater in my northern -lite 10' 2 camper its sits near the door it has only been used a few times . thought i would try it today as its a new camper. temp out side was 36 degrees...
Respectfully, if your pad is not uniform I don't think it is working properly. My concern is that you not only do not have the heat, but may have unburned gasses. I really encourage you to call the Wave people.