I am familiar with the Dickinson units , was a dealer , when sabre tooth tigers roamed.
The units with a pot burner are great as they only need to be lit once in the fall and will operate till spting.
My only caution is to purchase the H style smoke head , in marinas the breeze can come from any direction , including down , in a marina full of boats .
A water deck iron , a gravity supply of fuel , and every winter when the marina looses power at -10F , you will have lots of visitors coming over!
The refleks has a good reputation.