I've been kitting out UK kitchens for more than thirty years, and I'll say this: more operators get burned by the wrong commercial fryer than any other bit of kit on the pass. (I'm Andrew Pickersgill, by the way - Managing Director at eCatering.) A fryer that's too small will choke on a Friday-night rush. One that's too big will drink oil and power you don't need. And a gas unit in the wrong kitchen is a CP42 headache waiting to happen.
This guide is the one I wish every caterer had before ringing us up. No jargon dumps. No US pricing. No list of 200 SKUs. Just the decisions that matter - capacity, power, tier, and the mistakes we see in Whitby chippies, Leeds gastropubs, Glasgow takeaways and Birmingham hotel kitchens every week.
By the end, you'll know exactly what to buy, why, and what it'll actually cost to run. Fair warning. Some of this will cost you money you weren't expecting. Better to know now than the day the engineer shows up.
What a commercial fryer actually is - and why domestic won't cut it
A commercial fryer is a heavy-duty frying appliance built for continuous service, with thermostatic recovery, cool-zone oil wells, removable baskets and either a 13A plug, a hardwired 32A single-phase feed, a three-phase 415V connection, or a natural gas/LPG supply. It lives in a commercial kitchen. It runs for hours. It recovers temperature in seconds, not minutes.
A domestic fryer? Tops out at roughly 2–3 kg of chips per hour. A filtered twin-tank floor-standing commercial unit can hammer through 40 to 64 kg of chips per hour - enough for 250+ covers in a service.
That isn't a small gap. That's the difference between a hobby and a business.
Domestic units also lack CE-rated commercial certification, won't pass an EHO visit in most cases, and voided insurance claims follow operators who try to fudge it. Don't.
If you're staring down a volume kitchen, you need the real thing. Browse our full range of commercial fryers to see what the market actually looks like.
Key factors to consider before you buy
Before you even look at brochures, answer five questions honestly. Get these right and the shortlist writes itself.
Capacity & Throughput
How many portions do you need to push through in your busiest hour? Not your average hour - your Friday-at-seven hour.
A 9L countertop will handle a café doing 30 portions of chips over lunch. A 24L floor-standing will feed a busy takeaway. A 2x16L twin will give you separate oils (think haddock and halloumi), which matters more than most operators realise until it's too late. Undersize this and your oil temperature cold-drops the moment frozen chips hit the basket. Service tanks. Complaints start.
Space & Installation
Measure twice. Measure three times. Then measure the doorway.
A Falcon Dominator gas floor-standing unit can weigh close to 100 kg with a 600mm+ footprint. Plenty of kitchens can't get one through the back door, let alone under an extraction canopy with proper clearances. Gas also needs a Gas Safe registered engineer for install, a gas interlock tied to your extraction, and that annual CP42 certificate (more on that below).
Is your floor reinforced? Drainage sloped correctly? Extraction actually rated for the kW load? These are boring questions. They're also the ones that kill installs.
Power Supply & Gas
A 13A plug gives you up to 3 kW - fine for small countertop units. Hardwired 32A single-phase pushes up to 7 kW. Anything heavier wants three-phase (415V), and here's where operators get caught: if your unit doesn't have three-phase, a DNO upgrade runs £1,000 to £3,000 and can take weeks to process.
Not optional. Not negotiable. Check your board before you buy.
Running Costs & Efficiency
Q1 2026 Ofgem rates: 26.35p/kWh for commercial electric, 6.29p/kWh for gas. A 9 kW electric floor-standing runs around £2.37/hr to operate. A 15 kW gas floor-standing? About 94p/hr.
Gas wins on running cost the moment you're frying more than roughly four hours a day. Electric wins on install simplicity and small-site flexibility. Oil will cost you £60–£120 per week at volume - a 20L drum lasts 2–3 days unfiltered heavy use, or 4–7 days if you've got a decent filtration setup.
Warranty & Aftercare
Parts and labour warranties vary wildly. Some own-brand units come with 12 months. Premium names like Lincat and Falcon offer extended cover. Critically: who's on the end of the phone when the thermostat fails at 5pm on a Saturday? That's the real question. Speak to your supplier about aftercare before you buy, not after.
Types of commercial fryer explained
Not all fryers are built for the same job. Here's how the categories break down.
Countertop
Sits on a bench. 9L to 19L single tanks, or 2x6L to 2x19L twins. Plug-and-play on 13A up to around 3 kW, or hardwired for more powerful units. Ideal for cafés, sandwich bars, small pubs and food trucks.
Drain taps matter. A countertop without one means lifting a hot oil pot. That's a hospital visit waiting to happen.
Floor-Standing
The workhorse. 2x12L, 2x16L, 24L and bigger. Sits under extraction with proper clearances. This is what chippies, high-volume takeaways and production kitchens actually use.
The Quattro FSN003 24L gas single-tank twin-basket floor-standing sits at £574.99 ex VAT and is the workhorse of the budget tier - genuinely the unit I'd recommend for a Whitby fish shop or a Scarborough seafront takeaway opening their doors next month.
Gas vs Electric
Gas recovers in 60–90 seconds. Standard electric takes 90–150s. High-efficiency electric has closed the gap - 70–120s - but gas still wins on raw recovery. Recovery is what keeps your chips crisp when the basket goes in cold-frozen.
Gas also costs roughly a quarter the hourly rate to run. But gas needs Gas Safe install, extraction interlock and CP42 certification. Electric just needs the right circuit.
Rule of thumb: if you fry more than 4 hours a day, gas pays back within the first year. If you fry under 2 hours a day, electric is fine and simpler.
Pressure Fryers
A different beast entirely. Sealed lid. Higher pressure. Faster cook times. Used for chicken - properly done fried chicken, the kind that's juicy inside and crisp outside. The Contender FCE091 16L High-Pressure Chicken Fryer is our mid-range specialty at £502.99 ex VAT, and it's the unit behind a growing number of independent chicken shops in Leeds and Birmingham.
Induction (briefly)
Induction fryers exist. They're rare, expensive, and mostly found in high-end production settings. For 99% of UK caterers, they're not the answer. Worth knowing about. Not worth specifying.
Budget, Mid-Range and Premium - what you get at each tier
Three tiers. Three different conversations.
Budget (Quattro, £59–£580 ex VAT). Our own-brand. Honest engineering, solid stainless steel, thermostatic control, drain taps on the bigger units, cool-zone on the floor-standing models. The Quattro range is the workhorse of the budget tier - built for operators who need reliable kit without premium price tags. The FSN003 24L gas floor-standing at £574.99 is the flagship.
Mid-Range (Contender and step-up third-party, £220–£1,000 ex VAT). Our Contender range is our mid-range own-brand - better insulation, heavier-gauge steel, premium thermostats, faster recovery. The FCE091 pressure chicken fryer at £502.99 lives here. Stepping up to premium third-party at this tier gets you the Lincat Silverlink 600 DF66 twin 9L countertop at £999 - a unit you'll find in hotel kitchens across Edinburgh and Glasgow.
Premium (third-party floor-standing, £1,400+ ex VAT). Falcon Dominator, Henny Penny, Lincat J12. Heavy-duty, long-life, built for 12-hour services. You pay for durability and for aftercare networks that actually answer the phone.
One more tier worth mentioning: cleaning chemistry. The KINN range is our premium eco-friendly cleaning line - worth knowing about if sustainability matters to your brand or you're serving a customer base that cares about what goes down the drain.
Common mistakes caterers make when buying a fryer
Seven mistakes. Not three. We see these every week.
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Undersizing for peak, not average. You don't need capacity for Tuesday lunch. You need capacity for Friday at 7pm. Oil cold-drops during rush, chips come out greasy, service falls apart.
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Choosing electric when volume demands gas. Recovery times matter. A 9 kW electric can't keep up with a chip shop doing 200 portions an hour. Gas will. Every time.
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Ignoring install costs. Gas Safe install, CP42, extraction canopy, three-phase DNO application, floor reinforcement, doorway widening. These can easily match the cost of the fryer itself.
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Oil cost creep. £60–£120 per week on a busy site. Without filtration, you're burning through drums every 2–3 days. Filtration kit pays for itself inside six months.
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Forgetting CP42. The annual certificate costs £80–£200. Miss it and your insurance is void. Most first-year operators forget this until renewal lands.
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Doorway and weight problems. Heavy floor-standers won't fit through standard commercial doors. I've seen deliveries sent back from kitchens in Lincoln and Cornwall because nobody measured the door frame. Measure. Everything.
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Single tank when you need twin. No separation between fish and chips, halloumi and doughnuts, allergens and safe food. A single tank contaminates flavours and creates a real allergen risk. Twin tanks aren't a luxury for most operators - they're a requirement.
When to speak to a Key Account Manager
Most operators don't need a KAM. A Quattro countertop and a couple of clear questions by email, sorted.
But if you're fitting out a multi-site rollout, opening a new production kitchen, navigating a three-phase upgrade, or speccing a full gas-and-extraction install, our Key Account Manager Andy Whitehead is the person you want on the phone. Andy's been around UK commercial kitchens long enough to know which sites in Whitby need twin-tank gas, which Leeds gastropubs will regret going electric, and why a Glasgow fast-food chain's Edinburgh site has different install constraints than their Birmingham one.
He'll do a proper site assessment. Work the numbers on gas vs electric for your specific footfall. Source models we don't routinely stock. Pull in finance options through our finance partners if cash flow needs smoothing. Get in touch via meet the team - or if you're comparing siblings in this cluster, our commercial fryer buying guide covers shorter-form basics.
Worth a conversation on any install over £3,000. Definitely worth it on any multi-site project.
Frequently Asked Questions
What size commercial fryer do I need?
For a café doing under 40 portions of chips at lunch, a 9L–13L countertop is plenty. A busy pub kitchen doing 80–120 portions in an evening wants a 2x12L or 2x16L twin. A chip shop or high-volume takeaway needs a floor-standing 24L or larger, ideally gas, with filtered oil to hit 40–64 kg/hr throughput.
How much does a commercial fryer cost in the UK?
Budget own-brand countertop fryers start around £60 ex VAT. Mid-range twin-tank units run £400–£1,000. Premium floor-standing gas units from Falcon or Henny Penny cost £3,000–£13,000. Install costs on top: Gas Safe work, CP42, and potentially a £1,000–£3,000 three-phase electrical upgrade.
Gas or electric commercial fryer - which is better?
Gas wins on running cost and recovery time - 60–90 second recovery versus 90–150s for standard electric, and roughly 94p/hr versus £2.37/hr at current Ofgem rates. Electric wins on install simplicity, no CP42, and smaller-site flexibility. If you fry more than 4 hours a day, gas pays back within the first year.
Do I need three-phase electricity for a commercial fryer?
Only for heavy-duty units rated above roughly 7 kW. Countertop fryers up to 3 kW run on a standard 13A plug. Hardwired 32A single-phase handles up to 7 kW. Above that, you need three-phase (415V), which may require a £1,000–£3,000 DNO upgrade and weeks of lead time.
How often should I change the oil in a commercial fryer?
At volume, a 20L drum lasts 2–3 days of heavy unfiltered use, or 4–7 days with proper filtration. Daily skimming, regular filtration, and full oil changes every 3–7 days depending on volume and what you're frying. Fish protein breaks oil down faster than chips.
Is a twin-tank fryer worth the extra cost?
For most operators, yes. Twin tanks give you allergen separation, flavour separation (no fish-flavoured halloumi), and redundancy if one element fails mid-service. The price premium - often £100–£300 - pays back quickly in avoided complaints and lost covers.
Closing thoughts
Choosing a commercial fryer isn't about finding the cheapest unit that ticks a box. It's about matching capacity, power, and install realities to the way your kitchen actually runs. Get the capacity right, the power supply honest, the install costs clear, and the tier matched to your volume - and you'll have a fryer that pays for itself inside the first year.
Start with the Quattro range if you're opening or scaling tight. Step up to Contender when you need specialty kit or faster recovery. And if you're looking to clean any of it properly without harsh chemistry, our KINN range is worth a look.
Still comparing? Worth reading our commercial fryer buying guide sibling piece, our guide to the best oven for a pizza restaurant, the 5 common catering equipment mistakes and how to avoid them, or our full commercial kitchen equipment list for fit-out planning.
Questions? Ring us, email us, or come and meet the team. Andy's usually at his desk by 8.
- Andrew Pickersgill, Managing Director, eCatering
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Prices shown excluding VAT as of April 2026 and are subject to change. Gas installations require a Gas Safe registered engineer and annual CP42 certification. Always check product specifications to ensure equipment meets your kitchen's requirements.
