Buying and Selling a Used Commercial Combi Oven: The Complete UK Guide

Why the used commercial combi oven market matters

A combi oven is usually the single most expensive item in a commercial kitchen. New, a 6-grid Rational can cost £8,000 to £14,000 before installation. That is a serious chunk of capital for a cafe, takeaway or small restaurant, and it is exactly why the used commercial combi oven market in the UK is so active.

Bought well, a used combi gives you 80 per cent of the performance for 30 to 50 per cent of the money. Bought badly, it is a scale-damaged boiler wrapped in shiny stainless steel. This guide covers both sides of the deal: what to check when buying, how to price and prepare one for sale, and how to move a 100 kg-plus appliance across the country without damage.

This is the cornerstone guide. Where a topic deserves its own article, we link to it, and every new combi article we publish will link back here.

The brands, and what they mean for price

• Rational: The market leader by a distance. The SelfCookingCenter and newer iCombi lines hold their value better than anything else in the category. A serviced Rational is the easiest combi to sell and the safest to buy.
• Unox, Convotherm, Lincat, Hobart: Solid professional kit with good parts availability in the UK. Prices are more sensitive to age than Rational, which means buyers can find real value here.
• Budget imports: Cheap new and cheaper used. Parts support is the risk: a failed control board with no UK supplier can write the oven off. Price accordingly on both sides of the deal.

Buyer advice: what to check before you pay

• Ask for the service history first: A unit with documented service visits is worth paying more for. No paperwork does not mean no deal, but it does mean a lower price and a more careful inspection.
• Check the steam generator: Scale is the killer of combi ovens, especially boiler models in hard water areas. Ask when it was last descaled and look for white crusting in the cavity and around the drain.
• Test the door seal and glass: A brittle or split seal wastes energy and ruins cooking consistency. Seals are cheap to replace, cracked door glass is not.
• Run the cleaning cycle: A blocked spray arm or seized detergent pump turns into a £200 to £400 professional clean, or worse. Watch it run before you commit.
• Confirm the power supply: Many 6-grid electric combis need a 3-phase supply. If your site only has single phase, the oven is useless to you no matter how good the price. Check the data plate, and if in doubt have a qualified electrician confirm what your site can take.
• Match the size to your output: A 6-grid 1/1 GN unit suits most cafes and takeaways. A 10 or 20-grid floor-standing unit needs space, extraction and serious power, and resells more slowly for the same reasons.

Seller advice: getting the best price for your combi

• Gather the paperwork: Manual, installation certificate, service logs. Documentation can justify 15 to 20 per cent more than an identical unserviced unit.
• Deep clean before you photograph: Carbon on the runners and grease on the glass cost you money. A clean oven reads as a maintained oven.
• Photograph the data plate: Buyers need the model, serial and power details to make a decision. A clear data plate photo answers half their questions before they ask.
• Be straight about faults: A temperamental probe or a worn seal will be found eventually. Declaring it up front builds trust and stops the sale collapsing at handover.
• List it properly: On CaterBids you can list with CaterBot: photograph the data plate and it pulls the specs, dimensions and a pallet delivery quote back automatically, so you are not typing any of it out.

What is a used combi oven actually worth?

Every unit is different, but the UK secondary market broadly follows these bands, taken as a percentage of the current new retail price:

• Under 2 years old, full history: 55 to 70 per cent
• 2 to 5 years old, maintained: 35 to 50 per cent
• 5 to 8 years old: 20 to 35 per cent
• Over 8 years old: 10 to 20 per cent, often sold for spares or refurbishment

Treat these as guidance, not gospel. A descaled, serviced Rational sits at the top of its band. An unserviced boiler unit from a hard water area sits at the bottom, whatever the badge says. For a deeper walk-through, read our combi oven valuation guide.

Moving it: delivery and disconnection

A 6-grid combi weighs 100 to 160 kg, and floor-standing units far more. This is pallet freight, not a van and two mates.

• Disconnection is a professional job: Gas models must be disconnected by a Gas Safe registered engineer, electric models by a qualified electrician. Keep the certificate, it helps the sale.
• Palletise properly: Bolt or strap the oven to a sturdy pallet, protect the glass with board, and wrap the whole unit in heavy-duty shrink wrap. Carriers refuse kit that is not pallet-ready.
• Think about access at both ends: Tail-lift needed? Kerbside only? Will it fit through the door of the new site? Measure twice. Our pallet delivery guide covers the full process.

Practical checklist

• Confirm your site’s power supply (single or 3-phase) before shopping
• Ask every seller for service history and a data plate photo
• Inspect for scale, seal wear and glass damage, and run the cleaning cycle
• Price against the age bands above, adjusting for history and condition
• Book a Gas Safe engineer or qualified electrician for disconnection
• Arrange pallet delivery with tail-lift if either site needs it
• Keep every certificate and receipt, they add value at resale

Do the checks, price with the bands, move it on a proper pallet, and a used combi oven is one of the best-value purchases in any UK kitchen. That is the whole idea behind CaterBids: BUY • SELL • SAVE.

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