Dometic CFX3 35: the definitive frozen cooler
The Dometic CFX3 35 is the answer when the requirement is to keep things actually frozen -- not just cold, but frozen solid at or below 32F. The compressor technology is the same as a household freezer: a refrigerant cycle driven by a compact compressor that continuously removes heat from the interior. Set it to 0F and it maintains 0F.
Check price on Amazon →Keeping items actually frozen requires more than just a good cooler. We compared the best combinations of cooler, ice type, and packing method to achieve and maintain freezing temperatures.
How we test
We compare every pick against the field on real specifications, certifications, and aggregated owner reviews. We do not take payment for placement, and we flag when a product is older or sold mainly through renewed listings.
At a glance
| Pick | Best for | Score | |
|---|---|---|---|
| Dometic CFX3 35: the definitive frozen cooler | Check price |
The picks, reviewed
Dometic CFX3 35: the definitive frozen cooler
The Dometic CFX3 35 is the answer when the requirement is to keep things actually frozen -- not just cold, but frozen solid at or below 32F. The compressor technology is the same as a household freezer: a refrigerant cycle driven by a compact compressor that continuously removes heat from the interior. Set it to 0F and it maintains 0F.
FAQs
An electric compressor cooler set to a freezing temperature is the most reliable method. Without power, dry ice in a premium rotomolded cooler is the best passive option, achieving 2 to 3 days of freezing temperatures.
Yes, for 1 to 3 days depending on insulation quality and dry ice quantity. A rotomolded cooler like YETI or RTIC extends dry ice duration significantly compared to budget coolers.
The Dometic CFX3 35 can be set as low as -7F (-22C). At this setting it maintains deep freeze temperatures equivalent to a household freezer.
BougeRV electric compressor coolers are a solid value alternative to Dometic at about half the price. They achieve comparable freezing performance but with less refined build quality and a shorter warranty track record.
