Noted on the "full blast before shut down" procedure - I'm liable to end up posting "heater instructions" next to the controller just so all van occupants are aware
And I like the concept of having multiple vent outlets, maybe one fore and one aft. Haven't started casework construction yet so I could potentially work that in.
And I purchased a B4, High altitude kit was a necessity and it seems the B1LC is slightly older technology/being phased out? This is all me hypothesizing based solely on what I've gleaned from internet research, I have not consulted or verified with an Espar representative...
The output of the B4 seems like it might be overkill for the volume. Admittedly, I did not do very precise calculations before purchasing. Shame on me. Time will tell but I'm expecting to have windows and fantastic fan cracked when the heater is running, as long as it's not dumping snow.