[Alan Wheeler]

There are many dedicated Marine califonts available out their. Most of the Marine ones will have specialised features, but ofcourse you do need to check what features any particular make and model come with. But if you look for a good one, you should easily be able to get battery/on demand ignition of the flame. This means no pilot flame. You should be able to get flame out protection, that protects the unit in situations of failed water flow, flame failure, Co2 build up. If you don't have C02 sensing, just ensure a place with good ventialtion or a flue. As the production of a good quantity of heat and water is a product of the burning of gas, a flue is a best choice. Mine vents at presetn, directly into the Pilot house. It has a good supply of air, so htat is no problem, but the windows fog up on a cold morning if someone has a shower while I am att eh helm and makes it difficult to see. A Flue is on the list.