x2 on the Popup Gizmos.
Also allowing for air movement is the other key.
Many newbies seal up their pups/hybrids like a submarine, when it's cold or rainy and then run the furnace.
This is a big mistake. The running furnace + humans exhaling moist air, with a closed up RV, is the perfect formula for condensation.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC