RE: Dickinson vs Sig Marine heaters
Let a tiny bit of fuel flow in to the pot , drop in a lit square of toilet paper .
The TP will absorb the diesel in the pot acting as a wick and she will light every time.
The only time I would turn the unit off during the winter was to clean the entrance pipe with the tool provided.
And I would vaccume it after securing in May.
The water in NYC stays cold in the spring , so it was easier to leave a hatch open at 65F daytime , and not restart for the 50F night temps from the cold water.
With our hydronic water circulation , and its slow response time , this worked best for us.
Weather the fan is used is never the question, it is the ability of the unit to function with zero electric that is of value.
Marinas are low on the list after a blackout , it can be a week , or more!