Rational is the world's leading manufacturer of combi steamers and multi-purpose cooking systems for professional kitchens. Founded in Germany in 1973, the company has focused exclusively on intelligent thermal food preparation equipment since 1978 — a singular focus that has made Rational the benchmark against which all other combi oven manufacturers are judged. Today, Rational equipment is installed in more than a million professional kitchens worldwide, from independent restaurants and hotel kitchens through to large-scale contract catering facilities and food production operations.
GMSE stocks the full Rational range — the iCombi Pro combi oven series across the complete range of sizes, configurations and power supplies, and the iVario Pro multi-purpose cooking centre in all available sizes and specifications. Both ranges represent the current state of the art in their respective categories and are backed by the full Rational manufacturer warranty when purchased new. Finance options are available across the range.
In addition to new Rational equipment, GMSE periodically stocks refurbished Rational combi ovens — assessed, overhauled and tested by our accredited engineers before sale, and backed by our standard 12-month parts and labour warranty. Our engineering team can service and support Rational equipment after purchase, whether bought from us or from another supplier.

Browse the full Rational range below, or contact our team for guidance on the right model for your kitchen and application.

Rational iCombi Pro Combi Ovens

The Rational iCombi Pro is the most advanced combi oven available — and the model against which the entire combi oven market measures itself. Combining convection, steam and combination cooking modes in a single unit, the iCombi Pro uses Rational's iDensityControl technology to continuously monitor and regulate the cooking climate inside the oven, adjusting temperature, humidity and airflow automatically to deliver consistent results regardless of load size or product variation.

Key features of the iCombi Pro include the iProductionManager, which coordinates up to twelve simultaneous cooking processes in the same oven; a 6-point core temperature probe for precise internal temperature monitoring; and the iCare AutoDose autonomous cleaning system, which manages the cleaning cycle automatically from the integrated solids cleaner. All iCombi Pro models are Energy Star certified.

GMSE stocks the full iCombi Pro range — covering 6, 10 and 20 grid configurations in both 1/1 GN and 2/1 GN sizes, electric and gas, including countertop and floor-standing models with optional stands and trolleys. With 48 models available, there is an iCombi Pro specification for every professional kitchen requirement.
rational icombi oven

Rational iVario Pro Cooking Centres

The Rational iVario Pro is a multi-purpose cooking centre that replaces multiple pieces of equipment in a single unit — functioning as a boiling pan, bratt pan, fryer, pressure cooker and stock pot simultaneously. Using intelligent sensor technology and precise temperature control, the iVario Pro manages large-batch cooking with the same consistency and precision as the iCombi Pro, making it the natural companion piece to the combi oven in a well-equipped professional kitchen.

The iVario Pro range is available in four sizes — the 2-XS twin pan for smaller operations, the 2-S twin pan for mid-volume kitchens, and the L and XL single-pan models for larger-scale production environments. Models are available with or without pressure cooking and hand shower functions, and with stand options for countertop or floor-standing installation.
Rational iVario Pro 2-S Twin Pan with Pressure Cooking/Hand Shower
£12,289.99

The Rational iVario Pro 2-S is a hugely innovative cooking system, designed to replace almost all conventional cooking appliances. Able to boil, griddle and deep fry, the iVario brings productivity, flexibility and simplicity to your kitchen, helping you to boost your efficiency and output.

With its unique heating technology, the Vario Pro offers impressive power and precision. Thanks to its intelligent cooking assistants, which think with you and support you, you achieve outstanding food quality every time, without any monitoring or checking.

The iVario is designed to cook up to 4 times faster, using up to 40 % less energy and a providing huge space gain compared to conventional cooking appliances. This means that an iVario can pay for itself in just a few months. Integrated iVarioBoost energy management system and iCookingSuite intelligence generate high quality cooking results, precisely and quickly.

This 2-S version features full size gastronorm-size 25Ltr pans, providing plenty of capacity for around 100 meals a day. This option includes pressure cooking and a hand shower.

Product features

  • Dimensions: 485(H) x 1100(W)mm

  • Material: Stainless Steel

  • Voltage: 400V

  • Warranty: 2 Years Parts & Labour

  • Weight: 142kg

  • Colour: Silver

  • Up to 4 times faster than conventional cooking appliances using up to 40% less energy

  • Replaces multiple other appliances - a huge space gain compared to conventional cooking appliances

  • 6 point core probe ensures precise, controllable cooking

  • Optional iZoneControl means both pans can be divided into a total of 4 zones giving additional flexibility, up to 35% shorter cooking times

  • AutoLift - safely raise pasta/chips from liquid automatically

  • WiFi enabled

  • Auto water fill and drain

  • iVario 2-S standard unit with pressure cooking and hand shower included

Rational iVario Pro XL Cooking Centre on Stand without Pressure Cooking/Hand Shower
£15,239.99

The Rational iVario Pro XL is a hugely innovative cooking system, designed to replace almost all conventional cooking appliances. Able to boil, griddle and deep fry, the iVario Pro XL brings productivity, flexibility and simplicity to your kitchen, helping you to boost your efficiency and output.

With its unique heating technology, the Vario Pro offers impressive power and precision. Thanks to its intelligent cooking assistants, which think with you and support you, you achieve outstanding food quality every time, without any monitoring or checking.

The iVario is designed to cook up to 4 times faster, using up to 40 % less energy and a providing huge space gain compared to conventional cooking appliances. This means that an iVario can pay for itself in just a few months. Integrated iVarioBoost energy management system and iCookingSuite intelligence generate high quality cooking results, precisely and quickly.

This L version features a huge 150Ltr capacity pan (around 3/1 gastronorm size) and a sturdy stand. This option does not include pressure cooking or a hand shower.

Product features

  • Dimensions: 1078(H) x 1365(W)mm

  • Voltage: 400V

  • Warranty: 1 Year

  • Colour: Silver

  • Up to 4 times faster than conventional cooking appliances using up to 40% less energy

  • Replaces multiple other appliances - a huge space gain compared to conventional cooking appliances

  • 6 point core probe ensures precise, controllable cooking

  • Optional iZoneControl means both pans can be divided into a total of 4 zones giving additional flexibility, up to 35% shorter cooking times

  • AutoLift - safely raise pasta/chips from liquid automatically

  • WiFi enabled

  • Auto water fill and drain

Rational iVario Pro XL Cooking Centre on Stand with Pressure Cooking/Hand Shower
£17,999.99

The Rational iVario Pro XL is a hugely innovative cooking system, designed to replace almost all conventional cooking appliances. Able to boil, griddle and deep fry, the iVario Pro XL brings productivity, flexibility and simplicity to your kitchen, helping you to boost your efficiency and output.

With its unique heating technology, the Vario Pro offers impressive power and precision. Thanks to its intelligent cooking assistants, which think with you and support you, you achieve outstanding food quality every time, without any monitoring or checking.

The iVario is designed to cook up to 4 times faster, using up to 40 % less energy and a providing huge space gain compared to conventional cooking appliances. This means that an iVario can pay for itself in just a few months. Integrated iVarioBoost energy management system and iCookingSuite intelligence generate high quality cooking results, precisely and quickly.

This L version features a huge 150Ltr capacity pan (around 3/1 gastronorm size) and a sturdy stand. This option includes pressure cooking and a hand shower.

Product features

  • Dimensions1078(H) x 1365(W)mm

  • MaterialStainless Steel

  • Voltage400V

  • Warranty2 Years Parts & Labour

  • Weight257kg

  • ColourSilver

  • Up to 4 times faster than conventional cooking appliances using up to 40% less energy

  • Replaces multiple other appliances - a huge space gain compared to conventional cooking appliances

  • 6 point core probe ensures precise, controllable cooking

  • Optional iZoneControl means both pans can be divided into a total of 4 zones giving additional flexibility, up to 35% shorter cooking times

  • AutoLift - safely raise pasta/chips from liquid automatically

  • WiFi enabled

  • Auto water fill and drain

Rational iVario Pro 2-S Twin Pan without Pressure Cooking/Hand Shower
£10,369.99

Product description

The Rational iVario Pro 2-S is a hugely innovative cooking system, designed to replace almost all conventional cooking appliances. Able to boil, griddle and deep fry, the iVario brings productivity, flexibility and simplicity to your kitchen, helping you to boost your efficiency and output.

With its unique heating technology, the Vario Pro offers impressive power and precision. Thanks to its intelligent cooking assistants, which think with you and support you, you achieve outstanding food quality every time, without any monitoring or checking.

The iVario is designed to cook up to 4 times faster, using up to 40 % less energy and a providing huge space gain compared to conventional cooking appliances. This means that an iVario can pay for itself in just a few months. Integrated iVarioBoost energy management system and iCookingSuite intelligence generate high quality cooking results, precisely and quickly.

This 2-S version features full size gastronorm-size 25Ltr pans, providing plenty of capacity for around 100 meals a day. This option does not include pressure cooking or a hand shower.

Product features

  • Dimensions485(H) x 1100(W)mm

  • Voltage400V

  • Warranty1 Year

  • ColourSilver

  • Up to 4 times faster than conventional cooking appliances using up to 40% less energy

  • Replaces multiple other appliances - a huge space gain compared to conventional cooking appliances

  • 6 point core probe ensures precise, controllable cooking

  • Optional iZoneControl means both pans can be divided into a total of 4 zones giving additional flexibility, up to 35% shorter cooking times

  • AutoLift - safely raise pasta/chips from liquid automatically

  • WiFi enabled

  • Auto water fill and drain

  • iVario 2-S standard unit - without pressure cooking or hand shower

Rational iVario Pro 2-XS Cooking Centre Twin Pan without Stand
£6,979.99

The Rational iVario Pro 2-XS is a hugely innovative cooking system, designed to replace almost all conventional cooking appliances. Able to boil, griddle and deep fry, the iVario brings productivity, flexibility and simplicity to your kitchen, helping you to boost your efficiency and output.

With its unique heating technology, the Vario Pro offers impressive power and precision. Thanks to its intelligent cooking assistants, which think with you and support you, you achieve outstanding food quality every time, without any monitoring or checking.

The iVario is designed to cook up to 4 times faster, using up to 40 % less energy and a providing huge space gain compared to conventional cooking appliances. This means that an iVario can pay for itself in just a few months. Integrated iVarioBoost energy management system and iCookingSuite intelligence generate high quality cooking results, precisely and quickly.

This 2-XS version features a space-saving footprint, whilst still providing two 17Ltr capacity pans.

Product features

  • Dimensions: 485(H) x 1100(W)mm

  • Voltage: 400V

  • Warranty: 1 Year

  • Colour: Silver

  • Up to 4 times faster than conventional cooking appliances using up to 40% less energy

  • Replaces multiple other appliances - a huge space gain compared to conventional cooking appliances

  • 6 point core probe ensures precise, controllable cooking

  • Optional iZoneControl means both pans can be divided into a total of 4 zones giving additional flexibility, up to 35% shorter cooking times

  • AutoLift - safely raise pasta/chips from liquid automatically

  • WiFi enabled

  • Auto water fill and drain

  • iVario XS standard unit without handshower included (Pressure cooking not available on XS model)

Rational iVario Pro L Cooking Centre on Stand without Pressure Cooking/Hand Shower
£11,679.99

The Rational iVario Pro L is a hugely innovative cooking system, designed to replace almost all conventional cooking appliances. Able to boil, griddle and deep fry, the iVario Pro L brings productivity, flexibility and simplicity to your kitchen, helping you to boost your efficiency and output.

With its unique heating technology, the Vario Pro offers impressive power and precision. Thanks to its intelligent cooking assistants, which think with you and support you, you achieve outstanding food quality every time, without any monitoring or checking.

The iVario is designed to cook up to 4 times faster, using up to 40 % less energy and a providing huge space gain compared to conventional cooking appliances. This means that an iVario can pay for itself in just a few months. Integrated iVarioBoost energy management system and iCookingSuite intelligence generate high quality cooking results, precisely and quickly.

This L version features a high 100Ltr capacity pan and a sturdy stand. This option does not include pressure cooking or a hand shower.

Product features

  • Dimensions1078(H) x 1030(W)mm

  • Voltage400V

  • Warranty1 Year

  • ColourSilver

  • Up to 4 times faster than conventional cooking appliances using up to 40% less energy

  • Replaces multiple other appliances - a huge space gain compared to conventional cooking appliances

  • 6 point core probe ensures precise, controllable cooking

  • Optional iZoneControl means both pans can be divided into a total of 4 zones giving additional flexibility, up to 35% shorter cooking times

  • AutoLift - safely raise pasta/chips from liquid automatically

  • WiFi enabled

  • Auto water fill and drain

Rational iVario Pro L Cooking Centre on Stand with Pressure Cooking/Hand Shower
£14,199.99

The Rational iVario Pro L is a hugely innovative cooking system, designed to replace almost all conventional cooking appliances. Able to boil, griddle and deep fry, the iVario Pro L brings productivity, flexibility and simplicity to your kitchen, helping you to boost your efficiency and output.

With its unique heating technology, the Vario Pro offers impressive power and precision. Thanks to its intelligent cooking assistants, which think with you and support you, you achieve outstanding food quality every time, without any monitoring or checking.

The iVario is designed to cook up to 4 times faster, using up to 40 % less energy and a providing huge space gain compared to conventional cooking appliances. This means that an iVario can pay for itself in just a few months. Integrated iVarioBoost energy management system and iCookingSuite intelligence generate high quality cooking results, precisely and quickly.

This L version features a high 100Ltr capacity pan and a sturdy stand. This option does not include pressure cooking or a hand shower.

The Rational iVario Pro L is a hugely innovative cooking system, designed to replace almost all conventional cooking appliances. Able to boil, griddle and deep fry, the iVario Pro L brings productivity, flexibility and simplicity to your kitchen, helping you to boost your efficiency and output.

With its unique heating technology, the Vario Pro offers impressive power and precision. Thanks to its intelligent cooking assistants, which think with you and support you, you achieve outstanding food quality every time, without any monitoring or checking.

The iVario is designed to cook up to 4 times faster, using up to 40 % less energy and a providing huge space gain compared to conventional cooking appliances. This means that an iVario can pay for itself in just a few months. Integrated iVarioBoost energy management system and iCookingSuite intelligence generate high quality cooking results, precisely and quickly.

This L version features a high 100Ltr capacity pan and a sturdy stand. This option includes pressure cooking and a hand shower.

Product features

  • Dimensions: 1078(H) x 1030(W)mm

  • Material: Stainless Steel

  • Voltage: 400V

  • Warranty: 2 Years Parts & Labour

  • Weight: 211kg

  • Colour: Silver

  • Up to 4 times faster than conventional cooking appliances using up to 40% less energy

  • Replaces multiple other appliances - a huge space gain compared to conventional cooking appliances

  • 6 point core probe ensures precise, controllable cooking

  • Optional iZoneControl means both pans can be divided into a total of 4 zones giving additional flexibility, up to 35% shorter cooking times

  • AutoLift - safely raise pasta/chips from liquid automatically

  • WiFi enabled

  • Auto water fill and drain

Rational iVario Accessories

GMSE stocks the full range of Rational iVario accessories — including accessories packs for the 2S, Pro L and Pro XL, stands with feet in two configurations, and the Oil Cart for the iVario 2S for deep frying applications. All accessories are genuine Rational parts, designed and tested for use with the iVario Pro range.
Rational Accessories Pack for iVario 2S
£1,120.39

Genuine Rational accessories pack to help you make the most of your Rational iVario 2S. This pack contains the following accessories: 1x scraper, 2x arms for automatic raising/lowering, 1x boiling basket, 1x frying basket, 1x sieve, 2x pan base grids, and 1x cleaning sponge.

Product features

  • Material: Stainless Steel

  • Supplier Model Number: 87.00.742

  • Weight: 7.7kg

  • Colour: Silver

  • Includes versatile colander for straining and draining

  • Pan base rack allows low temperature cooking

  • Cleaning sponge for quick, effective cleaning

  • Intended exclusively for professional use, such as in restaurant kitchens or catering operations for schools, hospitals, or delis. Any other use runs counter to its intended purpose, and could be dangerous. RATIONAL AG assumes no liability for consequences of improper use

  • Easy-clean design - dishwasher-safe

Rational Ivario Stand with Feet
£2,048.99

The Rational iVario is specifically designed to be installed directly onto this genuine Rational iVario stand. In this way, you benefit from the integrated pull-out shelves. Containers can be placed on these to safely empty the pan. There are also 2x3 support rails to store GN containers and accessories.

Product features

  • Dimensions: 595(H) x 1.1(W) x 717(D)mm

  • Material: Stainless Steel

  • Weight: 48.7kg

  • Colour: Silver

  • The recesses for installation inlets and drains mean the stand can be placed flush with the wall

  • Side walls and top closed, rear side open

Rational Accessories Pack for iVario Pro L
£1,267.29

Genuine Rational accessories pack to help you make the most of your Rational iVario Pro L. This pack contains the following accessories: 1x scraper, 1x arm for automatic lifting/lowering, 2x boiling baskets,1x sieve, 2x pan base grids, and 1x cleaning sponge.

Product features

  • Material: Stainless Steel

  • Supplier Model Number: 87.00.743

  • Weight: 10.3kg

  • Colour: Silver

  • Includes versatile colander for straining and draining

  • Pan base rack allows low temperature cooking

  • Cleaning sponge for quick, effective cleaning

  • Intended exclusively for professional use, such as in restaurant kitchens or catering operations for schools, hospitals, or delis. Any other use runs counter to its intended purpose, and could be dangerous. RATIONAL AG assumes no liability for consequences of improper use

  • Easy-clean design - dishwasher-safe

Rational Ivario Stand with Feet
£2,578.59

The Rational iVario is specifically designed to be installed directly onto this genuine Rational iVario stand. In this way, you benefit from the integrated pull-out shelves. Containers can be placed on these to safely empty the pan. There are also 2x3 support rails to store GN containers and accessories.

Product features

  • Dimensions: 595(H) x 1.1(W) x 899(D)mm

  • Material: Stainless Steel

  • Weight: 56.9kg

  • Colour: Silver

  • The recesses for installation inlets and drains mean the stand can be placed flush with the wall

  • Side walls and top closed, rear side open

Rational Accessories Pack for iVario Pro XL
£1,711.19

Genuine Rational accessories pack to help you make the most of your Rational iVario Pro XL. This pack contains the following accessories: 1x scraper, 1x arm for automatic lifting/lowering, 3x boiling baskets, 1x sieve, 3x pan base grids, and 1x cleaning sponge.

Product features

  • Material: Stainless Steel

  • Supplier Model Number: 87.00.744

  • Weight: 14.4kg

  • Colour: Silver

  • Includes versatile colander for straining and draining

  • Pan base rack allows low temperature cooking

  • Cleaning sponge for quick, effective cleaning

  • Intended exclusively for professional use, such as in restaurant kitchens or catering operations for schools, hospitals, or delis. Any other use runs counter to its intended purpose, and could be dangerous. RATIONAL AG assumes no liability for consequences of improper use

  • Easy-clean design - dishwasher-safe

Rational Oil Cart for Ivario 2s
£5,569.39

The Rational oil cart is the perfect complement for deep-frying. It has a capacity of 49 litres, it pumps the oil directly into the pan and can also melt cooking fat. fer deep-frying, the oil is returned to the oil cart through a filter. Due to the light proof storage, the oil has a longer shelf life.

The power can be connected via the integrated power socket on the front side of the iVario.

Product features

  • Dimensions: 1.085(H) x 603(W) x 655(D)mm

  • Material: Stainless Steel

  • Weight: 47.2kg

  • Colour: Silver

  • Automatic shut-off of pump after the pan filling process (do not operate the pump with water)

  • Max. housing temperature less than 70 °C (at 25 °C ambient temperature and operation with 180 °C hot oil)

  • Regulated heating protects the oil from overheating

  • Flow rate: 5 litres per minute of up to 180°C hot fat

  • Temperature resistant up to 180°C

  • Easy to clean

Refurbished Rational Combi Ovens

GMSE periodically stocks refurbished Rational combi ovens — including models from the SCC and SCC 5 Senses range, fully assessed, overhauled and tested by our engineers before sale. Every refurbished Rational oven is backed by our standard 12-month parts and labour warranty. Refurbished Rational stock is limited and changes as machines come through our workshop — if you do not see what you need below, contact our team to discuss current and upcoming availability.

Why Buy Your Rational Oven From GMSE?

  • Full Rational Range in Stock

    Full Rational Range in Stock

    GMSE stocks the complete Rational portfolio — 48 iCombi Pro models across all sizes, configurations and power supplies, the full iVario Pro cooking centre range, and all iVario accessories. New and refurbished available, with expert advice on the right specification for your kitchen.

  • 12-Month Warranty on Every Machine

    12-Month Warranty on Every Machine

    Every Rational machine sold by GMSE comes with a 12-month parts and labour warranty as standard — new or refurbished. Extended warranty options are available through our maintenance contracts for additional long-term cover.

  • Engineer Servicing & Repairs

    Engineer Servicing & Repairs

    GMSE is an accredited engineering business. Our engineers service and repair commercial kitchen equipment as part of their daily work — including Rational combi ovens. If your Rational equipment needs attention after purchase, you are dealing with qualified engineers, not a sales team passing you to a third party.

  • Finance Available

    Finance Available

    Finance options are available across the new and refurbished Rational range. For equipment at this level of investment, finance is often the right decision. Contact our team to discuss the options available.

Rational Equipment — Frequently Asked Questions

  • The Rational iCombi Pro is a professional combi oven — combining convection heat, steam and combination cooking modes in a single unit. It uses Rational's iDensityControl technology to continuously monitor and regulate the cooking climate inside the oven, automatically adjusting temperature, humidity and airflow to deliver consistent results regardless of load size or product variation. The iCombi Pro is available in 6, 10 and 20 grid configurations, in 1/1 GN and 2/1 GN sizes, electric and gas, making it suitable for every professional kitchen environment from compact restaurant kitchens through to large-scale production facilities. GMSE stocks 48 iCombi Pro models covering the full range of specifications.

  • The Rational iVario Pro is a multi-purpose cooking centre that combines the functions of a boiling pan, bratt pan, fryer, pressure cooker and stock pot in a single unit. It uses intelligent sensor technology and precise temperature control to manage large-batch cooking consistently across all those applications. In a professional kitchen, a single iVario Pro can replace several separate pieces of cooking equipment — reducing footprint, reducing cleaning time and simplifying production workflows. It is available in four sizes from the compact 2-XS twin pan through to the high-capacity XL, with options for pressure cooking and hand shower functionality.

  • Yes, GMSE periodically stocks refurbished Rational combi ovens. Every refurbished Rational oven has been through a full engineering assessment, overhaul and testing process before sale, and is backed by our standard 12-month parts and labour warranty. Refurbished Rational stock is limited and changes regularly. Contact our team to discuss current and upcoming availability if you do not see the model you need.

  • Yes. GMSE provides servicing and repair for Rational combi ovens across England, whether purchased from us or from another supplier. Our engineers carry out combi oven servicing and repairs as part of their regular work — covering heating element and steam system servicing, door seal renewal, probe calibration, fan and motor replacement, iCare cleaning system maintenance and planned preventive maintenance. To book a service or discuss a repair, contact our team or use our online booking form.

  • Yes, finance options are available on both new and refurbished Rational equipment. Given the investment level involved, finance is often the most practical route for professional kitchens equipping or upgrading. Contact our team for details on the options available.

  • The right size depends on your daily cover count, production volume and the physical dimensions of your kitchen. As a general guide, a 6-grid iCombi Pro is suited to kitchens producing up to around 100 covers per service; a 10-grid covers mid-to-high-volume operations; and a 20-grid is suited to large-scale production kitchens and central production facilities. Within each grid size, the choice of 1/1 GN or 2/1 GN, electric or gas, and countertop or floor-standing depends on your power supply, space and throughput requirements. Our team is happy to advise on the right specification before you commit.