Keep wasps, mud daubers, spiders, and rodents out of your RV furnace vent with this stainless steel insect screen. A blocked or nest-clogged furnace vent is a safety hazard and a costly repair -- this simple, durable screen is the easiest way to prevent it. Fits most Coleman, Suburban, Sol-Aire, and Hydroflame furnace vent openings, and installs in minutes with the included tool.
Flying insects, especially mud daubers and wasps, are notorious for nesting inside RV furnace vents during storage or between camping trips. Once a nest is established, it can block combustion air or exhaust flow -- creating a carbon monoxide risk and triggering furnace lockout errors. The Camco 42140 insect screen installs directly over the exterior vent opening, providing a physical barrier without restricting normal airflow during operation.
The screen is constructed from stainless steel mesh, which resists corrosion from road spray, humidity, and the heat cycling that comes with a working furnace vent. Unlike plastic alternatives, stainless holds up season after season without warping or cracking.
Corrosion-resistant construction handles heat, moisture, and road grime without warping or cracking over time.
Fits most Coleman, Suburban, Sol-Aire, and Hydroflame RV furnace vent openings -- covers a wide range of rig makes and model years.
Comes with a dedicated install tool so you can seat the screen properly without improvising -- no additional tools required.
Backed by Camco's limited warranty. A straightforward, no-fuss product from a brand RV technicians have trusted for decades.
RV furnaces pull combustion air from outside through the vent opening, and expel exhaust through the same or an adjacent port. Any blockage -- whether from insect nests, debris, or a crushed vent cover -- can cause incomplete combustion, carbon monoxide buildup in the living space, or repeated furnace ignition failures. Seasonal campers and full-timers alike should inspect furnace vents before the first heating run of the season. Installing a quality insect screen is standard practice in RV maintenance.
This screen is designed for the standard furnace vent opening found on many popular RV furnace brands. Confirmed compatible families include:
The 4 in. x 7-1/2 in. face dimension covers the standard rectangular vent opening on these units. If your furnace vent opening matches these dimensions, this screen will fit. Measure your vent opening before ordering if you are unsure.
Camco includes an installation tool with each screen. The screen is pressed into the vent opening and seated securely using the tool -- no drilling, no adhesive required for most applications. The process typically takes under five minutes. Inspect the screen annually and clear any debris or partial nests before the heating season.