Campingaz Isotherm 934
(22 reviews)
Compact and virtually indestructible, the Campingaz Isotherm 934 keeps your drinks cool for up to 20 hours and can even take your weight if you sit on the lid.
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Key features
- Capacity: 17 litres, up to 11 bottles of 0.5 L
- Cold retention: Up to 20 hours (20h30 with a Freez'Pack M10)
- Insulation: 100% PU polyurethane foam, CFC and HCFC free, in both the body and the lid
- Lid-locking handle, structure rated for 250 kg
In detail: Campingaz Isotherm 934 Rigid Passive Cooler, 17 Litres
The Campingaz Isotherm 934 cooler belongs to the family of classic passive coolers, without a compressor or power supply, which rely solely on insulation quality to preserve the cold brought by ice packs or Freez'Packs. Its 17-litre capacity, designed for an outing for two or a small family, holds about 11 bottles of 0.5 litre alongside a few fresh items.
The insulation, made from 100% PU polyurethane foam free of CFCs and HCFCs, covers both the body and the lid, a point often overlooked on entry-level models where only the body of the cooler is insulated. The result announced by Campingaz: up to 20 hours of cold retention, and even 20h30 with a Freez'Pack M10, more than enough for a day at the beach or a day trip without access to electricity.
The shell, made of tough HDPE inside and out, handles the knocks of transport in a car boot well and resists UV and moisture over time. Its structure is even rated to support up to 250 kg, enough to sit on without worry during a picnic or a fishing trip. The handle automatically locks the lid when lifted, limiting loss of cold air on opening and preventing accidental openings during transport.
With an empty weight of about 2.1 kg, it stays easy to carry once loaded, without the bulk of larger wheeled models. Its limits are those of any passive cooler of this size: 17 litres suit occasional use rather than a multi-day stay for a group, and ice packs need replacing after more than a day. For classic summer use, picnics, the beach, car trips, it remains one of the safe bets in the Campingaz catalogue at this price point.
Technical data
Detailed characteristics (EAN: 3138520222545)
Performance
| Cold retention?How long the cooler keeps its contents cold without a power source (passive coolers) or if power is cut. | Up to 20 hours (20h30 with a Freez'Pack M10) |
|---|---|
| Insulation?Thickness and quality of the insulation, which determines how long the cooler stays cold. | 100% PU polyurethane foam, CFC and HCFC free, in both the body and the lid |
Dimensions and power supply
| Capacity?Usable storage volume of the cooler, in litres. | 17 litres, up to 11 bottles of 0.5 L |
|---|---|
| Material?Main material used to make the casing. | HDPE shell inside and out, impact resistant |
| Weight?The unit's empty weight. | About 2.1 kg empty |
| Dimensions?Width, depth and height of the unit (W x D x H), inside and/or outside depending on the line. | 36 x 37 x 24 cm |
| Load capacity?Usable storage volume of the cooler, in litres. | Up to 250 kg, can double as extra seating |
Additional information
| Warranty?Period during which the manufacturer commits to repairing or replacing the unit in case of failure. | 24 months manufacturer warranty |
|---|
Comparison
In the entry to mid-range segment of rigid passive coolers, the Campingaz Isotherm 934 is regularly compared with the Coleman Performance Cooler 16QT, the other widely used reference for camping and picnics, in searches such as "Campingaz vs Coleman passive cooler". Here's how the two compare, based on the public specifications of both manufacturers.
| Criterion | Campingaz Isotherm 934 | Coleman Performance Cooler 16QT |
|---|---|---|
| Capacity | 17 litres | ≈15 litres |
| Cold retention | Up to 20h30 with a Freez'Pack | ≈24 hours (1 day) claimed |
| Insulation | PU foam in both the body and the lid | Thick PU foam (5 cm) in the lid |
| Empty weight | ≈2.1 kg | ≈1.8 kg |
| Special feature | Structure rated for 250 kg, doubles as a seat | Comfort handle, compact format |
| Price observed | ≈€49.99 | ≈€39.99 |
In short, the Coleman Performance Cooler offers a slightly higher claimed cold retention and a tighter price, while the Campingaz Isotherm 934 relies on full lid insulation and a structure sturdy enough to serve as a seat, a handy detail for picnics or fishing trips. Both remain solid, no-surprise choices for occasional short-term use.
Our tester's verdict: Gilles Caron
We've taken this Isotherm 934 along on several camping and beach weekends: it's the kind of cooler you quickly forget about, in a good way. It does its job without surprises, the insulation holds up over a full day with one or two Freez'Packs, and the handle that locks the lid shut when closed avoids nasty surprises during car transport. The real strong point is its shell, rated to support 250 kg: it literally doubles as a stool by the water's edge, a detail that matters when you're short on chairs. At 17 litres, it stays modest for more than two people over several days, and its insulation remains average for the passive segment compared with more premium references. But for the price, it's hard to find anything simpler or sturdier: exactly what you'd expect from an entry-level Campingaz cooler.
Frequently asked questions: Campingaz Isotherm 934 Rigid Passive Cooler, 17 Litres
Campingaz states up to 20 hours of cold retention, and 20h30 with a Freez'Pack M10 used alongside regular ice cubes or ice packs. In practice, expect a good full day of coolness in hot weather.
A passive cooler like the Isotherm 934 only works with ice packs or Freez'Packs, with no electricity: simple and affordable, but with limited runtime. An electric cooler keeps things cold continuously as long as it stays plugged in, to the mains or a car's cigarette lighter socket.
Yes, its reinforced HDPE structure is rated to support up to 250 kg, which lets you use it as extra seating during a picnic, a fishing trip or a match by the pitch.
The Campingaz Isotherm 934 can hold up to 11 bottles of 0.5 litre, or a combination of drinks and food for two people over a day.
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Page published on 1 July 2026, updated on 31 July 2026