RATIONAL CombiMaster® Plus XS Combi Oven (CMPXS-Series)

by Rational


A small-sized combi oven that fits in even the smallest space. With its compact size, it can be stack on top of another CMPXS unit making it a 2-in-1 commercial combi oven, Combi-Duo.

The CombiMaster® Plus series are precise in every aspect: provides sophisticated technology to support each chef’s individual craftsmanship.

It is rugged, easy to operate and offers enticing functions that ensure the highest possible food quality every time (crispy crusts, succulent roasts, intense aromas, attractive colours and retained vitamins and minerals).

Guaranteed by the precision controlled cooking cabinet climate and the accurate setting of temperature, air humidity, air flow and cooking time.





The CombiMaster® Plus XS by Rational is a small-sized top quality combi oven that will reach the cooking demands precision by both chef and their tools.

Its high-performance heat exchanger gas burners were awarded the innovative prize by the German gas industry due to its low-emission combustion.

Suitable not only for front cooking use but also station units in a restaurant because of its fine installation solutions.

Benefits at a glance

  • Limitless cooking variety.
  • Ideal cooking performance.
  • Easy-to-use controls.
  • Optimum cooking cabinet climate, ClimaPlus® precisely maintains humidity within an ideal range.

General Features and Technological Advantages

  • USB port.
  • Probe for core temperature measurement.
  • 100 cooking programmes with up to 6 steps.
  • 5 programmable airspeed fan.
  • Cool function for fast cabinet cooling.
  • Fresh steam generator.
  • Rear-ventilated triple glass door with heat reflective coating.
  • Integrated door drip pan.
  • Cabinet with splash guard (prevents water from spilling out).
  • Up to 55% smaller footprints (reduce energy losses).
  • Hand shower with automatic retracting system and water shut-off mechanism.

5 reasons to choose Rational CombiMaster Plus XS: 

Steam Mode: 30°C to 130°C

  1. The high-performance fresh steam generator with new steam control constantly produces hygienic fresh steam.
  2. Able to cook without adding water and prevent long waits for the water to boil.
  3. Constant cooking cabinet temperature and maximum steam saturation guarantee a steady and gentle cooking process, producing the best food quality.
  4. Even sensitive food such as crème caramel, quiches, fine fish or mousselines will succeed with minimal effort in large quantities.

Convection Mode: 30°C to 300 °C

  1. Hot air circulated at high speed flows around the food from each side.
  2. Constant hot air up to 300 °C is not just a technical detail, but a necessary reserve power, even when there is a full load.

Combi-Steamer Mode: 30°C to 300°C

  1. Combination mode has advantages, such as shorter cooking time, reduces up to 50% cooking wastage, and producing succulent foodstuff.
  2. The benefits of the convection-hot steam mode hold the responsibility to create the intense aroma, vibrant food colour and crispy crusts.

Fishing: Consistent decoupling of production and output

  1. From side dishes to a complete menu, the optimum climate to prepare food (heating up and from chilled to serving temperature) with CombiMaster® Plus perfectly.
  2. Gaining flexibility and customers’ satisfaction, both sides will be able to enjoy the food experience (no more long waiting time and losing quality in food).

Automatic cleaning

  1. The new automatic cleaning function cleans the equipment hygienically, even overnight if required.
  2. It is economical and easy to operate.

RATIONAL Combi Oven CMP XS Accessories:

  • Granite-enamelled containers.
  • Cross and stripe grill grate.
  • Grill and pizza tray.
  • Roasting and baking tray.
  • Chicken Superspike.
  • Multibaker.

Flexible Options:

  1. Built-in solution.
  2. Wall bracket.
  3. Stand UG.
  4. Combi-Duo (stackable 2 units in 1 space).


* Rational CombiMaster® Plus XS is ONLY available in Electric version.

Download Spec Sheet CMPXS Download Spec Sheet CMPXS Duo E

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