Refrigerator on board – how to choose the right one

A good refrigerator is one of those things that really makes life on board more comfortable. Whether you’re sailing on a boat, travelling in a camper or have an off-grid setup, it’s all about choosing the right solution – so you get reliable cooling without draining your battery.

🔌 Which refrigerator should you choose?

There are several types of refrigerators, and the right choice depends on your needs and electrical system:

• Compressor refrigerator: The most efficient choice. Low power consumption and good cooling – even in warm conditions.
• Absorption refrigerator: Can run on gas, 12V and 230V – but uses more power on 12V.
• Cooler: A flexible solution for smaller needs or temporary use.

My advice: Choose a compressor refrigerator if you have a battery/solar panels – it’s by far the best solution in the long run.

⚡ Power consumption – how much power does a refrigerator use?

Power consumption depends on size, temperature and usage – but here’s a rule of thumb:

• Small refrigerators: approx. 20–30 Ah per day
• Medium-sized refrigerators: approx. 30–50 Ah per day
• Large refrigerators: 50+ Ah per day

This means your battery and charging sources (solar panels, shore power or engine) need to be able to keep up.

Tip: A well-insulated refrigerator uses significantly less power.

🌡️ Location and temperature

Where you place your refrigerator makes a big difference:

• Avoid direct sunlight
• Ensure there’s ventilation behind the refrigerator
• Keep the door closed as much as possible

The less heat the refrigerator is exposed to, the less power it uses.

🔋 How it works with your electrical system

The refrigerator is often one of the biggest power consumers on board.

That’s why I recommend:

• Solar panels for daily charging
• A LiFePO4 battery for reliable operation
• A battery monitor to keep track of things

This way, you can avoid flat batteries and poor cooling.

⛵ What should you consider?

• Size – does it meet your needs?
• Power consumption – can your system keep up?
• Built-in or freestanding?
• 12V, 24V or 230V?

It’s not about getting the biggest refrigerator – it’s about choosing the right one.

✅ My recommendation

Choose an energy-efficient compressor refrigerator and build your setup around it.

It will give you reliable operation, low power consumption and much greater comfort on board.