Review on Camco Protects Furnaces Insects Prevents by Brandon Barrett

This screen works exactly as advertised. It takes a bit of fiddling to fit, but be aware that once installed, the water heater warranty will be void! Follower. When the water heater was first turned on (they chose not to turn on the propane on the PDI) there was a (small) explosion in the water heater due to a faulty gas valve inside. Every time it was turned on, it kept exploding (we found out later), blasting black soot out of the vent on the side of the trailer and permanently fouling it. While this shield was not the cause of the problem, the mere fact that it was on the water heater vent voided the manufacturer's warranty. Apparently the vents on the oven vents also voided that warranty. you have been warned