Captains Handbook | Page 17

Your boat is equipped, according to its size, with one or two refrigerators. Do not expect them to perform with the same efficiency as a household fridge. It is advisable not to overload them and to avoid opening the door unnecessarily. YOUR BOAT Refrigerator The refrigerators are fed by the boat’s domestic batteries. When the power supply goes below 11 volts they cut off automatically so as not to damage the batteries. If this happens you should recharge them by starting the engine or by connecting to shore power. Heating and cooling Most of our boats are equipped with hot air heaters. They use the same diesel as the boat’s engine but the heat is distributed by an electric fan system and will therefore consume energy. Never leave the heater on unnecessarily when you are away from your boat or during the night during the night. Depending on the model, your boat will also have cabin air-cooling or air-conditioning for use during warmer weather. Fuel Your tank will be filled before your departure, and this is normally sufficient for one week’s cruising. For longer cruises, your instructor will indicate where you can refuel. Prior to departure your fuel gauge will be read so that fuel consumption can be calculated on your return. 17