Mestic MAC-40 Cool Box Absorption (AC/DC/Gas) image 1 Mestic MAC-40 Cool Box Absorption (AC/DC/Gas) image 2 Mestic MAC-40 Cool Box Absorption (AC/DC/Gas) image 3 Mestic MAC-40 Cool Box Absorption (AC/DC/Gas) image 4 Mestic MAC-40 Cool Box Absorption (AC/DC/Gas) image 5 Mestic MAC-40 Cool Box Absorption (AC/DC/Gas) image 6 Mestic MAC-40 Cool Box Absorption (AC/DC/Gas) image 7

Mestic MAC-40 Cool Box Absorption (AC/DC/Gas)

£249.99(inc VAT) £329.99
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Mestic MAC-40 Cool Box Absorption (AC/DC/Gas)
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The Mestic Cool Box Absorption MAC-40 AC/DC, 30mbar offers unparalleled flexibility for keeping your food and drinks cool wherever your adventures take you. Whether you're at a campsite, on the road, or in the wilderness, this versatile cool box ensures you always have refreshments at the perfect temperature. With the ability to operate on gas, 12 V, and 230 V power sources, you're not limited by the availability of mains power, granting you the freedom to explore remote locations without sacrificing the luxury of chilled beverages and snacks.

Equipped with a silent absorption cooling system, the Mestic Cool Box Absorption MAC-40 AC/DC, 30mbar maintains a tranquil environment, allowing you to fully immerse yourself in the serenity of nature without the distraction of noisy appliances. Its cooling performance remains consistent whether powered by electricity or gas, ensuring your items stay cool even in the absence of conventional power sources. The cool box's generous 42l capacity makes it suitable for accommodating the needs of three to four people, with ample space for storing 2l bottles alongside other essentials.

Designed with convenience in mind, the Mestic Cool Box Absorption MAC-40 AC/DC, 30mbar features a built-in spirit level to ensure optimal cooling efficiency by ensuring it stands straight on any surface. The box cools its contents to an impressive 25 °C below the ambient temperature, making it ideal for mild summer days and ensuring your perishables remain fresh throughout your journey. Its dimensions of 47 x 52 x 48 cm (hxwxd) offer a spacious interior while maintaining a compact footprint, perfect for fitting into various spaces, whether in your vehicle or at your campsite.

The Mestic Cool Box Absorption MAC-40 AC/DC, 30mbar is the ultimate solution for keeping your provisions cool during adventurous holidays. Its ability to operate on multiple power sources, combined with its silent operation and generous capacity, makes it a must-have companion for any outdoor excursion. For added convenience and hygiene, consider pairing the MAC - 40 with the Mestic cool box stand, ensuring your cool box remains dry and clean throughout your travels.

  This can be powered from a gas bottle, 12V or 240V supply.


Mestic Cool Box Absorption MAC-40 AC/DC, 30mbar Features


  • Flexible Power Options: Experience the freedom to chill anywhere with the MAC-40, operating effortlessly on gas, 12 V, and 230 V power sources.
  • Silent Cooling System: Enjoy peaceful surroundings with the quiet operation of the absorption cooling system, ensuring your adventures are undisturbed by noisy appliances.
  • Generous Capacity: With a spacious 42l interior, this cool box can accommodate the needs of three to four people, including 2l bottles, making it perfect for group outings and extended trips.
  • Optimal Cooling Efficiency: Keep your provisions fresh in any environment with the built-in spirit level ensuring the cool box stands straight for maximum cooling performance, cooling contents to an impressive 25 °C below the ambient temperature.

Specifications
  • Colour: Black/Grey
  • Material: Aluminium
  • Silent operation with built-in spirit level
  • Connection voltage: 12 V, 220-240 V & gas
  • Dimensions (hxwxd): 47 x 52 x 48 cm
  • EAN-code: 8712757470464
  • Suitable for: 2l bottles
  • Weight: 18.5 kg
  • Content: 42l (suitable for 2Lt bottles)
  • Fuel: Propane/Butane – 30mbar
  • Fuel Consumption: 12.8g/h
  • Operates on 12v, 230v and gas
  • Power: 75w (DC) 82w (AC) – 6.3amps
  • Adjustable temperature range: Up to 25 °C below the ambient temperature
  • Material: Aluminium
  • Cool box type: Absorption
size



THIS COOLBOX USES ABSORPTION TECHNOLOGY

What is the difference between the cooling technologies?
ABSORPTION COOLING
Details of distinguishing features:
  • Gas-powered cooling independent of electricity
  • Three way cooling – Gas, 12 volts DC or 230 volts AC
  • Silent operation
  • Cooling performance depending on the ambient temperature

The Technical Bit
A concentrated ammonia solution is heated in a boiler and expelled as vapour. The pressurised ammonia gas is then liquefied in a condenser. Supplied with hydrogen, it evaporates and in the process extracts heat from the storage container. The ammonia gas then enters the absorber where it is reabsorbed in a weak solution of ammonia. Finally, the saturated solution flows back to the boiler where the whole cycle starts again.

THERMOELECTRIC TECHNOLOGY
Details of distinguishing features:
  • 12 / 24 / 230 Volt
  • Independent of inclination
  • Lightweight and low-cost
  • Cooling performance depending on the ambient temperature

The Technical Bit
The thermoelectric principle was discovered by J. C. A. Peltier, which is why the temperature generating parts of thermoelectric systems are referred to as Peltier elements. Thermoelectrics are based on the fact that cold or heat energy (depending on the polarity) is generated when a DC current is conducted between different types of metal. The heating or cooling capacity is further enhanced by heat exchangers and air fans. Ideal for low and medium cooling volumes.

COMPRESSOR TECHNOLOGY
Details of distinguishing features:
  • Excellent cooling performance even at extreme ambient temperatures
  • Refrigeration and deep-freezing
  • 12 / 24 / 100 – 240 volts
  • Low power consumption – suitable for solar operation
  • Battery protection
  • Quiet operation with little vibration
  • Independent of inclination

The Technical Bit
Compressor units operate using a refrigerant that changes from liquid to gaseous state in the evaporator. The evaporation extracts heat from the interior of the cooling unit – the temperature drops. The compressor draws in the refrigerant, compresses it and passes it on to the condenser. Here, the absorbed heat is released to the atmosphere. The refrigerant liquefies again and flows to the evaporator, where the cycle begins again.


Frequently Asked Questions

How does absorption cooling differ from compressor cooling in the MAC-40?
Absorption cooling in the MAC-40 uses a heated ammonia solution cycle instead of a compressor with moving parts. This means completely silent operation but cooling performance relative to ambient temperature rather than to a fixed setpoint. The MAC-40 cools contents to 25°C below whatever the outside temperature is, so on a 20°C day you get -5°C inside, but on a 35°C day you get 10°C. Compressor systems maintain consistent temperatures regardless of ambient conditions but consume more power and create noise and vibration.
Why does the MAC-40 need to sit level with the spirit level?
Absorption cooling systems rely on gravity-fed ammonia solution flowing through tubes in a continuous cycle between the boiler, condenser, evaporator and absorber. If the MAC-40 sits at an angle, the solution cannot flow properly through the circuit, severely reducing cooling efficiency or stopping it altogether. The built-in spirit level lets you check the unit is positioned correctly on uneven ground at campsites. Unlike thermoelectric or compressor coolboxes, absorption systems lose most of their cooling capacity when tilted beyond a few degrees.
How long will the MAC-40 run on a gas bottle?
The MAC-40 consumes 12.8 grams of propane or butane per hour when running on gas at 30mbar pressure. A standard 6kg Calor gas bottle contains 6000 grams, giving approximately 468 hours of continuous operation, which equals around 19 days. A 13kg bottle would run for roughly 42 days continuously. Actual runtime depends on how often the cooling cycle needs to work based on ambient temperature, how frequently you open the lid, and how full the coolbox is kept.
Can the MAC-40 run from a leisure battery without draining it quickly?
The MAC-40 draws 6.3 amps at 12V DC, which equals 75 watts of power consumption. On a 100Ah leisure battery you would get approximately 16 hours of runtime before reaching the recommended 50% discharge level. A 110Ah battery gives around 17-18 hours. For extended off-grid use, either switch to gas operation overnight, add solar panels to recharge during the day, or upgrade to a larger battery bank. Running the coolbox while driving recharges the battery through your vehicle's alternator.
What's the actual cooling capacity in litres for food storage?
The MAC-40 has a 42 litre gross capacity, but usable storage space is typically 35-38 litres once you account for the cooling fins and internal components. The interior fits 2-litre bottles standing upright and accommodates supplies for three to four people on a weekend trip. You can fit approximately 24 standard 330ml cans with some food items, or around 15-18 bottles of various sizes mixed with perishables. The aluminium interior is easier to clean than plastic but condensation can pool at the bottom when running on very cold settings.
Does the MAC-40 work while driving or only when stationary?
The MAC-40 can run on 12V power while driving, connected to your vehicle's electrical system. However, you must switch off gas mode before travelling as it's illegal and dangerous to drive with gas appliances operating due to naked flame ignition systems. The coolbox needs to sit level for absorption cooling to work properly, so secure it firmly to prevent tipping during cornering or braking. Most users run it on 12V while driving, then switch to gas or mains hook-up once parked at their destination.
What gas regulator and connection does the MAC-40 require?
The MAC-40 operates at 30mbar pressure and requires a standard 30mbar propane or butane regulator connected to your gas bottle. UK Calor gas bottles need a clip-on regulator for propane or a screw-on regulator for butane, both set to 30mbar output. You'll need appropriate gas hose rated for outdoor use, typically 8mm bore, cut to the length needed to reach from your gas bottle to the coolbox. Some caravans and motorhomes already have 30mbar gas outlets built in, allowing direct connection via the supplied gas inlet on the MAC-40.
How does ambient temperature affect the MAC-40's cooling performance?
Absorption cooling systems like the MAC-40 cool to a differential below ambient rather than to a fixed temperature. At 15°C outside, the interior reaches -10°C. At 25°C ambient, you get 0°C inside. At 35°C on hot summer days, contents cool to 10°C. This differs from compressor fridges that maintain set temperatures regardless of conditions. The cooling differential means the MAC-40 works better in cooler climates and struggles in extreme heat above 35°C ambient. Keeping it in shade and ensuring good ventilation around the back helps maintain performance in warmer conditions.
EAN-13 : 8712757468232
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If you’ve changed your mind about keeping your purchase, please return it in its original condition with proof of purchase and we’ll exchange or refund it. Unless faulty, this should be within 100 days of receiving your order. By original condition, we’d expect this to mean that you’ve kept packaging and labels, and that the item is undamaged and unused.

For further information of how to return your item, please visit the "Returning an Unwanted/Faulty/Damaged Item" section on our Help Page.
  Did you know we have been established and have been in the caravan and motorhome industry for over 50 years?

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