chuckbear wrote:
trailrider wrote:
chuckbear wrote:
That lip won't keep out more than a drop of rain. It is there to allow the install of a bug shield, which hangs on the lip and is secured by a spring. The difference in length is probably to allow it to fit in the new furnace and not the old one. Chuck
The lip isn't there to "allow the install of a bug shield." The furnace manufacturers specify in their manuals to never block the exhaust or intake of the furnace with anything, including screens.
Wow, Most every RV supplier out there, including Amazon must be totally unaware of that, including us and most RV's we have seen.
http://www.amazon.com/JCJ-M-200-furnace-Outside-Fitting/dp/B0002UHWIG
Chuck
Yep, I have one on my RV. Cleaning out mud dauber nests is nothing I need to do on a regular basis.
I cleaned out a furnace once that had a bird nest in the intake side of the furnace. The combustion blower fan was jammed full of little sticks and the bird even got around the fan and there were sticks inside the heat exchanger. It must have been the worlds smallest bird to get in there. The guy had been in California for a couple of months and he said he saw the bird doing it.
