If you’re shopping for a caravan fridge, you’ve likely come across the age-old debate: 3 way fridge vs compressor fridge. Both options are designed for life on the road, but they offer very different features, performance, and power options.
So, which one is right for your setup?
In this guide, we’ll break down what is a compressor fridge, what is a 3 way fridge, and how each stacks up when it comes to power usage, cooling efficiency, off-grid capability, and more.
What is a Compressor Fridge?
A compressor fridge (also called a 2-way fridge) uses a compressor unit—just like the one in your fridge at home—to generate cooling. These fridges run on 12V DC battery power or 240V mains electricity, making them a reliable choice for most caravans and campers with a solar setup or regular access to power.
Key Features of Compressor Fridges:
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Power Source: 12V battery or 240V mains (2-way)
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Cooling Method: Compressor (mechanical cooling)
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Efficiency: Consistent performance regardless of outside temperatures
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Ideal For: Off-grid setups with solar/battery systems, those carrying frozen goods
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Popular Brands: Dometic, Bushman, Evakool
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What is a 3 Way Fridge?
A 3 way fridge uses absorption technology instead of a compressor, and it can run on three power sources: 12V DC, 240V AC, and LPG gas. This versatility makes it a popular option for long-term travellers who want to stay off-grid without relying on solar or battery power.
Key Features of 3 Way Fridges:
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Power Source: 12V battery, 240V mains, or LPG gas (3-way)
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Cooling Method: Absorption (gas flow heat exchange)
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Efficiency: Best on gas; less effective in extreme heat or on battery
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Ideal For: Long-term off-grid stays, free camping without solar setups
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Popular Brands: Thetford, Dometic
Compressor Fridge vs 3 Way Fridge: Head-to-Head Comparison
|
Feature |
Compressor Fridge |
3 Way Fridge |
|---|---|---|
|
Power Options |
12V, 240V |
12V, 240V, LPG |
|
Cooling Efficiency |
Excellent, even in heat |
Lower, especially on 12V |
|
Off-Grid Performance |
Needs charged battery or solar |
Can run for weeks on LPG |
|
Noise Level |
Low humming |
Silent |
|
Set-up Requirements |
Works on uneven ground |
Must be level to operate |
|
Power Usage (12V) |
Efficient |
High (not ideal long term) |
|
Maintenance |
Minimal |
Needs ventilation when using gas |
|
Best For |
Short-term stays, powered sites, solar setups |
Extended off-grid stays, freedom camping |
Which Fridge Should You Choose?
There’s no one-size-fits-all answer in the 3 way fridge vs compressor fridge debate. Your ideal caravan fridge will depend on your travel style, budget, and power setup.
Choose a Compressor Fridge If:
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You have a solar power system or access to mains power.
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You want fast, reliable cooling—even in extreme heat.
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You plan to store frozen or perishable foods.
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You need a fridge that works on a tilt or uneven terrain.
Pro Tip: Compressor fridges are more energy-efficient on 12V and can easily be supported by a good battery and solar combo.
Choose a 3 Way Fridge If:
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You want to stay off-grid for long periods without a solar setup.
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You prefer silent operation.
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You have good ventilation in your van and travel mostly on level ground.
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You’re okay with less consistent cooling.
Pro Tip: When running on LPG, a 3 way fridge can last up to 2–3 weeks on a standard 9kg gas bottle - perfect for remote adventures.
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Final Thoughts
Still wondering which fridge to buy? Start by making a list of your priorities—off-grid duration, food storage needs, available power sources, and how often you move around. Then compare them against the strengths of each fridge type.
Whether you go with a reliable compressor fridge or the off-grid freedom of a 3 way fridge, you’ll find plenty of great options at Caravan RV Camping. If you're still unsure, our friendly team is ready to help. Call us on 1800 787 278 or jump on our live chat.
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DISCLAIMER* Please note, this advice is general in nature and we strongly recommend consulting the product manual and where relevant, a professional installer.
