We had major problems with our refrigerator while traveling, so aggravating. It worked great sitting in the yard. Finally, we used some rv oven outside vents and aluminum sheeting. We made a little bridge over our TC vents using the aluminum sheeting and bridging it over our fridge vents. The rv oven vents helped keep the alumiumn sheeting off of our regular fridge vent. Of course the top and bottom of the aluminum sheeting was open so it still had chimney effect. It still works great today. That was the last straw before selling our TC. It fixed it so we still have our TC.