I use the small bottle with a Mr. Heater under the deck and have been pretty happy with it. It heats well for a single burner and the size allows for a simple light weight setup. I find that I am able to stay warm enough rowing without a heater so it ends up working out well. The only problem occurs when people in the front have to stand up and fight a fish. The trick is to get the heater shut off and out of the way. If you can turn it off, you can spin the small bottle of propane and heater around. That way it doesn't fry the deck of your boat. It just all depends on how it goes. I saw my wife stand up in the braces and put her pant leg against the heater grill once. She was on fire shortly thereafter. After putting her out I realized she was more concerned about the fish than the fire situation. I think I married the right girl.