How quickly does a Rational combi oven pay for itself?
Most JMGT customers have recovered their investment within 2 to 4 years. Simultaneously through energy savings, less product loss and higher output per shift.
By JMGT Commercial Kitchen Equipment · Authorised Rational Dealer

The four routes to payback
Energy savings: 70% less consumption
The Rational iCombi Pro uses up to 70% less energy than conventional cooking equipment. At an average of 8 operating hours per day and an energy price of €0.28 per kWh, this delivers savings of €1,500 to €3,500 per year, depending on your volume and current energy consumption.
Less product loss through precision
Conventional cooking techniques cause weight losses of 20 to 35% with meat and fish through overcooking. The iCombi Pro limits this to 15 to 20%. At 50 kg of meat per week and a purchasing price of €10 per kg, you save €2,500 to €5,000 per year.
Staff efficiency
Through unattended cooking and automatic process control, the average kitchen saves 30 to 60 minutes of active kitchen work per day. At a wage of €18 per hour this amounts to €3,000 to €6,500 per year.
Energy efficiency permanently lowers running costs
Modern Rational units use significantly less energy than older generations – this noticeably reduces your running costs. We are happy to calculate the concrete savings for your specific situation.
Calculation example: restaurant 100 covers
Investment
iCombi Pro 10-1/1, new
Annual savings
Payback period: approx. 22 months
Indicative. Actual outcome depends on your specific situation.
Have the payback period calculated for your kitchen
JMGT calculates this individually based on your situation. Book a free kitchen check or request a quote.
Frequently asked questions
Questions about payback period
What is the average payback period of a Rational iCombi?
JMGT customers achieve an average payback period of 2 to 4 years. This varies depending on volume, current energy consumption and the choice between used and new unit.
How much energy does a Rational combi oven save?
The Rational iCombi Pro uses significantly less energy than conventional cooking equipment. With daily professional use this equates to savings of €1,500 to €3,500 per year, depending on your energy tariff and usage.
Does a used unit count in the payback calculation?
Yes, very much so. A refurbished iCombi Pro used unit costs 40 to 50% less than a new unit but delivers the same energy savings. The payback period for a used unit is therefore often 30 to 40% shorter than for a new one.
How does JMGT calculate the payback period for my situation?
JMGT uses the free kitchen check to capture your current situation: volume, current consumption, staffing situation and equipment inventory. On this basis we calculate a realistic payback period for your specific case.
Sources
- Rational iCombi Pro – Energy and TCO - Rational AG
JMGT is an authorised Rational dealer and Hoshizaki specialist. The practical insights in this article are based on more than 500 commercial kitchen installations in the Netherlands.
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