Refrigerator for fishing in a boat: choice, fastening and power

Fishing at a great distance from the shore or multi-day rafting radically change the approach to the storage of catch and products. Refrigerator for fishing in a boat It is no longer a convenience, and it becomes a necessity to keep trophies fresh even in the summer heat, and unlike stationary models, boat equipment must withstand constant vibration, swaying and the risk of splashing.

The modern market offers many solutions, from simple thermal boxes to full-fledged ones. compressorAn error in the choice of cooling or power supply can lead not only to the spoilage of the fish, but also to the discharge of the battery at the most inopportune time. A critical parameter for boat use is the resistance of the refrigerator to roll up to 30 degrees, which distinguishes it from automotive counterparts.

In this article, we will discuss the technical details that will help you find the perfect solution for your boat, you will learn why some models can not be tilted, how to calculate power consumption correctly and what safety measures are required during installation.

Types of refrigerators: compressor versus absorption

Choosing between compressor and absorption systems is the first and most important decision. Compressor refrigerators They work in a way that everyone knows in their home kitchen, but they have enhanced vibration protection, they cool food quickly, they can work at high ambient temperatures, and they consume less energy per unit of cooling capacity.

Absorption models, often called three-way models, can run on gas, 12V or 220V. Their main advantage is the quietness and ability to power the gas cylinder, which autonomizes you from the battery state. However, they are sensitive to tilts: if the boat is heavily heeled, the circulation of the refrigerant is disrupted, and the device stops working or fails.

For active fishing with frequent movements and maneuvers, the compressor option looks preferable. DC compressors (DC) are started even at low voltage in the network, which saves the battery from deep discharge.

Thermoelectric bags (the Peltier effect) should be swept away as the main option for storing catches: they only keep the temperature, but do not cool below the ambient temperature, and their energy consumption at low efficiency makes them useless on a hot day on the water.

blockquote>

⚠️ Attention: Absorption refrigerators should not be included in the 12B network during the boat’s movement if there is a risk of heavy rolling or shaking, as this can lead to clogging of the system and the explosion of the heating element.

When choosing a model, pay attention to the manufacturer's stated angle of inclination. For fishing boats and PVC boats, this parameter should be at least 25-30 degrees in either direction.

Energy consumption and power supply from the onboard network

The energy balance of the boat is a matter of survival. Current consumption The compressor models consume current in jerks: at the time of start-up, the initiation current can reach 10-15 Amps, although the average consumption is 3-5 Amps per hour.

Use only copper wires with a cross section of at least 2.5 mm2, preferably 4 mm2, especially if the refrigerator is far from the battery. inverter It may be wrong to decide to disconnect the power, considering the battery is discharged.

• 🔋 Be sure to install the fuse in the break of the plus wire directly at the battery terminal.
• ⚡ Use a voltmeter to monitor the voltage in the onboard network in real time.
• 🔌 Avoid twists and cheap terminals – vibration will quickly break the contact, causing sparkling.

If your refrigerator is designed for 220V, using an inverter is not the most efficient way. Double energy conversion (12V -> 220V -> 12V) leads to a loss of up to 20% of battery power.

Criteria for the choice of volume and dimensions for the boat

In the limited space of a fishing vessel, every centimeter counts. Dimensions of the refrigerator Vertical loading (frontal access) takes up less space on the floor, but requires free space on top to open the lid.

Horizontal loading is more effective in terms of keeping the cold, because cold air is heavier than warm air and does not escape when opened, but it is more difficult to fit into narrow niches. The optimal volume for a weekend fishing for two is 20-30 liters.

Pay attention to the thickness of the walls. polyurethane insulation allows you to make the walls thinner without losing the thermoelectric effect, which increases the internal volume at the same external dimensions.

The shape of the hull is also worth considering: rectangular models are easier to fit into corners, but round (cylindrical) models are better able to withstand pressure and are often used in professional marine equipment.

Installation and anchorage systems on a rocking vessel

Safety on the water is paramount, and an unsecured refrigerator weighing 15-20 kg can become a dangerous projectile when braking or agitating. Fridge fastening It must be rigid but capable of being dismantled to maintain or remove ice (unless the model is fully automatic).

The ideal solution is to make a customized catwalk or use regular seats in lock belts. Metal brackets should be made of stainless steel grade AISI 316 to eliminate corrosion in salt water.

The vibration from the motor is transmitted to the hull of the boat and all the equipment installed. To extend the life of the compressor, use anti-vibration gaskets made of dense rubber or porous polyurethane between the bottom of the refrigerator and the floor of the boat.

Don't forget to vent. The heat exchanger must have a free flow and outflow of air. If you're putting the refrigerator in the furniture, make sure you leave the gaps according to the instructions, otherwise. Efficiency of the system It will fall and energy consumption will increase.

Comparative table of specifications of popular types

For clarity, we compare the basic parameters that will help you decide on a purchase, and the data are averaged for models with a volume of about 30 liters.

As can be seen from the table, for serious fishing, where it is important to freeze fish or store food for a long time, compressor models have no competitors in efficiency.

Maintenance and protection from moisture and salt

Seawater and fish slime are an aggressive environment for any equipment. Corrosion It can quickly disable the contacts and metal elements of the housing, and regular washing of the external surfaces with fresh water is mandatory after each exit.

Door seals require special attention. Sand and dirt, when they hit the rubber band, break the tightness, making the compressor work more often. Periodically lubricate the seals with silicone lubrication to maintain their elasticity.

Once a season, it is recommended to completely defrost and disinfect the inner chamber. Use special means to clean refrigerators that do not have a strong smell, so as not to spoil the taste of products in the future.

blockquote>

⚠️ Warning: Never wash the refrigerator with a high-pressure jet of water (kercher) – this is guaranteed to lead to moisture entering electronic units and leaking freon through microslits.

FAQ: Frequently asked questions