Wasps, mud daubers, and spiders love to nest inside RV water heater vents -- and a clogged burner tube or blocked exhaust can mean a heater that won't light, or worse. The Camco 42151 drops into place over the exhaust/burner opening on Suburban 6-gallon flush mount water heater doors, creating a heavy-duty stainless steel barrier that keeps pests and debris out while allowing proper airflow. Installation takes minutes and requires no drilling.
Mud daubers and paper wasps are among the most common causes of RV water heater service calls. They build nests directly inside burner tubes and combustion chambers during storage or even between uses, blocking gas flow and creating fire hazards. A simple stainless screen installed on your water heater door is one of the cheapest forms of preventive maintenance you can do.
Camco's 42151 is purpose-built for the Suburban 6-gallon flush mount door opening -- not a generic screen you have to cut or adapt. The 7 x 7 inch stainless steel mesh panel is sized to match the door recess and snaps in with the included installation tool.
Sized specifically for Suburban 6-gallon flush mount water heater doors -- no cutting, trimming, or improvising required.
Heavy-duty stainless construction resists rust, road debris, and UV exposure through years of outdoor exposure.
Package includes one insect screen panel and a dedicated installation tool for clean, secure fitment without special skills.
Mesh gauge is fine enough to block insects and large debris while allowing combustion air and exhaust gases to flow freely.
Suburban water heaters use a standing pilot or direct spark ignition system fed by a small-diameter burner tube. Even a partial blockage from a mud dauber nest can cause ignition failures, incomplete combustion, or carbon monoxide spillage into the living area. Many RV owners discover the problem only after the heater stops working entirely -- often at the start of a trip.
Installing this screen takes about two minutes and should be part of every pre-season RV prep routine. It is equally important to remove the screen and inspect for any accumulated debris at the start of each camping season or after extended storage, even with the screen in place.
Will this fit my Suburban SW6DE or SW6DEL? The SW6DE and SW6DEL are 6-gallon direct spark ignition models commonly installed with a flush mount door -- this screen is a standard match for those units. Confirm your door is the flush-mount style.
What about Atwood or Dometic water heaters? This screen is not compatible with Atwood/Dometic heater doors, which use different door dimensions and profiles. Camco makes separate screens for those units.