For Sale By Owner.... Please Call me for Best Offer... I can Take Trades... 480-444-9878 Like a fine home, the Ventana diesel motorhome is framed 16 inches on center, allowing the best placement of outlets, switches and other components. Newmar uses only Sikaflex elastic adhesive throughout Ventana’s construction – one of the strongest bonding agents available. It seals against air and water and helps dampen sound and vibration. Electrical wiring holes in Ventana’s aluminum frame are ringed with plastic grommets to protect wires from chafing. And Newmar’s Total Comfort™ Central Air is two separate, fully ducted systems that distribute cool air and remove warm air.