Just began to winterize the RV (ST22BH) today.
Was cleaning out the pack and play area when the furnace kicked on. The door to the pack and play covers the vent for the furnace and the heat began to melt the fiberglass exterior of the door.
Caught it before it really got bad but now I have a circle melted area the size of a pop can bottom on the door.
Makes me think that not to much thought went into the placement of the furnace.
2013S22BH/2015 f-150 ecoboost