Rational iCombi Classic 20-1/1 Gas Combination Oven

The Rational iCombi Classic 20-1/1 is a full-size, high-capacity gas combination oven designed for demanding professional kitchens. It accommodates twenty 1/1 GN pans in portrait orientation and operates across three cooking modes — steam, convection, and combination — giving kitchen teams precise control over moisture, temperature, and airflow throughout service. The unit can be configured for either natural gas or LPG supply, which is worth confirming at the point of order if your site runs on bottled gas.

In a busy kitchen environment, the iCombi Classic is built to handle sustained throughput. Multiple fan wheels distribute heat evenly across all twenty levels, which helps maintain consistent results across a full load rather than just the centre shelves. The ClimaPlus humidity management system allows operators to adjust moisture levels in defined stages, which is particularly useful when moving between product types during service — from roasting to baking to regenerating, for example — without the inconsistency that can come from less controlled humidity systems.

From an operational standpoint, the iCombi Classic offers a number of practical advantages for busy teams:

• Up to 100 programmable cooking profiles with multi-step sequences, supporting consistent results across different shifts and skill levels
• An intuitive dial-and-display interface with clear symbols, reducing the likelihood of operator error under pressure
• Automatic cleaning cycles including an overnight option, using phosphate-free cleaner tablets and a descaling function to protect the unit over time
• High-intensity LED chamber lighting, making it straightforward to check cooking progress without opening the door
• Reproducible results across large batches, reducing reliance on individual chef judgement during high-volume service

The 20-grid format is a substantial piece of equipment and will require a properly planned installation. Gas connection, adequate ventilation, and a suitable floor loading rating are all prerequisites that need to be confirmed before delivery. Many sites will also require a grease extract canopy positioned correctly above the unit. Given the size and weight involved, access routes and kitchen layout should be assessed in advance. This is not a unit you would typically install without the involvement of a qualified gas engineer and, in many cases, a ventilation specialist.

This model is best suited to high-volume catering operations — large hotel kitchens, contract catering facilities, central production units, and busy restaurant kitchens producing at scale. For smaller operations or kitchens with more limited space and throughput requirements, a lower-capacity model in the iCombi Classic range would be a more appropriate starting point. Equally, for very large production environments with even greater demands, there are higher-specification alternatives worth considering.

If you are weighing up whether this particular capacity is right for your kitchen, or need to work through the installation requirements before committing, our team is happy to talk it through with you.