Rational iCombi Classic 20-1/1 Gas Combination Oven

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

Built to handle sustained throughput, the iCombi Classic distributes heat evenly across all twenty levels through multiple fan wheels, maintaining consistent results across a full load rather than just the central shelves. The ClimaPlus humidity management system allows operators to adjust moisture levels in defined steps, which is particularly useful when moving between product types during service — roasting, baking, and regenerating, for example — without the inconsistency that less controlled systems can produce.

From an operational standpoint, the iCombi Classic offers several practical advantages for busy teams:

• Up to 100 programmable multi-step cooking profiles, supporting consistent results across shifts and varying skill levels
• Intuitive dial-and-display interface with clear symbols, reducing operator error under pressure
• Automatic cleaning cycles including an overnight option, using phosphate-free cleaner tablets with a built-in descaling function
• High-intensity LED chamber lighting for checking cooking progress without opening the door
• Reproducible batch results, reducing reliance on individual chef judgement during high-volume service

A twenty-grid unit is a substantial installation and requires careful planning before delivery. Gas connection, adequate ventilation, and confirmed floor loading capacity are all prerequisites. Most sites will need a correctly positioned grease extract canopy above the unit. Given the size and weight involved, access routes and kitchen layout should be assessed in advance. Installation will require a qualified gas engineer and, in most cases, a ventilation specialist.

This model is well suited to large hotel kitchens, contract catering facilities, central production units, and busy restaurant kitchens producing at scale. For operations with lower throughput or more limited space, a smaller-capacity model in the iCombi Classic range would be a more appropriate starting point. For very large production environments with greater demands still, higher-capacity alternatives are worth exploring.

If you are working through whether this capacity is the right fit, or need to think through the installation requirements before committing, our team is happy to talk it through with you.