Congrats on your maiden voyage!
Did you do a walk-through with the dealer before taking possession of the tt? Did the heater work then? That would suck to count on the heater this time of year and it not work! Good thing you brought that bag instead of blankets
. As FPM mentioned, a lot of members here say that they use an electric heater also when on shore power.
That grease is just sloppy work from a lazy employee. Your dealer should replace it! Just curious, where were the water leaks? As for warranty issues, those are typical for a new unit. Keep a piece of paper handy and start a list. Hopefully the leaks are minor and you won't experience any really major issues later on. Let us know how it turns out