Marine grade stainless steel is the best option for beach houses, resorts, restaurants, or anywhere near the sea. Multiple units can be grouped together to achieve any length required.
As a general rule, it is suggested to locate the burner end toward the highest heat-loss area (doors) of the space being heated because heat output is the hottest at the burner head and diminishes down to the exhaust. Mounting height of 8' in cold climate areas is recommended. In areas with milder climate, 9' mounting height is acceptable.