I have a 2016 Sightseer 33C. My rig has a heater vent in my wet bay that blows hot air when the propane furnace is blowing.
If you have a question call Winnebago in Forest City, Iowa, talk to a service technician and they can tell you exactly how your RV is configured.
Safe travels. JD
2016 Winnebago Sightseer 33C on a 2016 Ford F53 Chassis
2009 Saturn VUE
Buddy our Bichon Frise
JD & Kathy