Commercial Oven Buying Guide: Convection vs Conveyor vs Combi

A pizza shop owner in Chicago called me last summer. For other kitchen equipment decisions, see our guides on commercial ranges and commercial fryers. His deck oven took 45 minutes to reach temperature every morning. The opening cook came in at 9am to turn it on so it'd be ready by 11. That's 2 hours of labor per day, 14 hours per week, at $18/hour. $13,104 per year. Just to preheat an oven.

He'd been doing this for 3 years. Nobody had done the math.

Your oven is the heart of your kitchen. Pick the wrong one and you'll either burn through labor hours waiting for it to heat up or burn through food cost because it cooks unevenly. The right oven pays for itself. The wrong one bleeds you slowly.

Industry Data & Sources:

Energy Star provides efficiency ratings and buying guides for commercial kitchen equipment.

NSF International certifies commercial foodservice equipment for safety and sanitation standards.

Convection vs Conveyor vs Combi: Quick Comparison

The 4 Types of Commercial Ovens

Convection Oven

A convection oven uses a fan to circulate hot air. It cooks 25-30% faster than a standard oven and at 25-50 degrees lower temperature. If you're roasting vegetables, baking pastries, or finishing proteins, this is your oven.

A single-deck full-size convection oven costs $3,000-$8,000. A double-deck runs $8,000-$15,000. Blodgett and Vulcan are the standard brands. A Blodgett double-deck runs $10,000-$14,000 and lasts 15-20 years.

The fan is the most common failure point. It runs constantly and the motor burns out every 5-7 years. Replacement cost: $400-$800.

Keep a spare fan motor on your shelf. The part costs $200 and takes 30 minutes to swap. Waiting 3 days for a service call during dinner service costs you thousands. I had a bakery client in Portland whose convection oven fan died on a Friday at 4pm. They had 200 loaves of sourdough to bake for Saturday farmers market. No spare motor. They lost $4,800 in revenue that weekend. The motor costs $187 on WebstaurantStore.

One thing nobody mentions about convection ovens: the door seals. They wear out every 2-3 years and nobody replaces them. A worn door seal leaks heat, which means the oven runs longer to maintain temperature, which means higher energy bills and uneven cooking. Replacement seals cost $50-$100. Check yours by holding a piece of paper against the door while it's running. If the paper flutters, your seal is shot.

Conveyor Oven

A conveyor oven moves food through on a belt. You set the belt speed and temperature. Every item cooks exactly the same. This is what Subway and most pizza chains use.

A countertop conveyor oven costs $5,000-$12,000. A full-size double-stack runs $15,000-$30,000. Lincoln and Middleby Marshall are the standard brands. A Lincoln 2500 double-stack costs $18,000-$25,000.

The belt is a wear item. Budget $300-$500 per year for belt replacement. The heating elements last 3-5 years and cost $200-$400 each to replace. A conveyor oven has more moving parts than any other type. Budget $1,000-$2,000 per year for maintenance.

Side note on Lincoln vs Middleby Marshall: they're the same company now. Middleby bought Lincoln in 2015. The Lincoln 2500 and the Middleby PS360 are basically the same oven with different branding. Lincoln tends to be cheaper because it's positioned as the value brand. If you see a "deal" on a Middleby, check the Lincoln equivalent first. You might save $3,000-$5,000 for the same machine.

If you're doing high volume of the same item, this is your oven. But here's what the sales rep won't tell you: conveyor ovens are terrible at variety. If your menu has 3 pizzas, great. If it has 15 items with different cook times and temperatures, you'll hate it. I watched a fast-casual place try to run sandwiches, pizzas, and baked pastas through the same conveyor. The pasta came out cold, the sandwiches came out burnt, and the pizza was perfect. They ended up buying a second oven 4 months later.

Combi Oven

A combi oven combines convection, steam, and combination cooking. It can roast, steam, bake, braise, and proof. One combi oven replaces a convection oven, a steamer, and a proofing cabinet.

A countertop combi costs $8,000-$15,000. A floor model runs $15,000-$35,000. Rational is the gold standard. Their iCombi Pro 10-half-size-pan unit runs $18,000-$25,000. Alto-Shaam is the American alternative at $12,000-$20,000.

Combis require a water line, a drain, and electrical. Installation adds $2,000-$5,000. They also need daily cleaning cycles and quarterly descaling. Budget $500-$1,000 per year for cleaning chemicals and maintenance.

Rational vs Alto-Shaam is a religious debate in kitchens. Rational owners love the precision and the self-cleaning cycle. Alto-Shaam owners love the simplicity and the fact that you can actually fix them yourself. Rationals are like German cars. Incredible when they work, expensive when they don't. An out-of-warranty Rational repair starts at $800 just for the tech to show up. Alto-Shaam parts are available from 3rd-party suppliers and most repairs are DIY-able if you're handy.

Actually, let me rephrase that. The real difference is service networks. Rational has certified techs in most major cities but if you're in a small town, you might wait a week for service. Alto-Shaam uses a network of independent service companies. In rural areas, you'll get faster service on an Alto-Shaam. In cities, Rational's service is excellent.

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If you have limited kitchen space, a combi is your answer. But don't buy one unless you're actually going to use the steam function. I've seen too many restaurants buy a $20,000 Rational and use it as a $5,000 convection oven because nobody learned how to program the steam cycles.

Deck Oven

A deck oven has stone or steel decks that radiate heat. This is for pizza, bread, and anything that needs a crispy bottom.

A single-deck pizza oven costs $3,000-$8,000. A double-deck runs $8,000-$15,000. Bakers Pride and Marsal are the standard brands. A Bakers Pride Y-600 double-deck costs $8,000-$12,000.

Deck ovens take 30-60 minutes to heat up. You can't turn them off between services. They run all day. At 12-18 kW per deck, a double-deck running 12 hours per day at $0.12 per kWh costs $21-$32 per day in electricity. That's $7,665-$11,680 per year.

Marsal vs Bakers Pride: Marsal decks are thicker (2 inches vs 1.5 inches on Bakers Pride). Thicker decks hold heat better, which means faster recovery when you open the door. If you're doing high-volume pizza, the Marsal is worth the extra $2,000-$3,000. If you're doing 50 pizzas a day, Bakers Pride is fine.

One thing I learned the expensive way: deck ovens need dedicated ventilation. Not a Type 1 hood (unless you're cooking meat in them), but a Type 2 hood for heat and moisture. A bakery client in Austin didn't install one. Their AC system couldn't keep up with the heat output. The dining room hit 82 degrees in July. They lost half their lunch business before they figured out why.

Gas vs Electric: The Real Cost Difference

Gas ovens cost 20-30% more upfront but 40-60% less to operate. A gas convection oven costs $5,000-$10,000. An electric equivalent costs $3,500-$7,000. But gas costs $0.80-$1.20 per hour to run. Electric costs $1.50-$2.50 per hour.

At 12 hours per day, 350 days per year, gas costs $3,360-$5,040 per year. Electric costs $6,300-$10,500 per year. The gas oven pays for itself in 2-3 years.

The catch is installation. Gas requires a gas line, a hood with fire suppression, and possibly a make-up air system. If your space doesn't already have gas, the installation can cost $10,000-$30,000. Electric just needs a plug and maybe a dedicated circuit.

I'm not sure this holds everywhere, but in California and New York, there's a push to ban gas in new commercial construction. Check your local codes before committing to gas. Several cities have passed electrification ordinances that affect new restaurants. If you're building out in Berkeley or NYC, you might not have a choice.

What to Buy Based on Your Concept

Pizzeria: Double-deck gas deck oven. Bakers Pride Y-600 or Marsal SD-660. Budget $8,000-$12,000. Add a conveyor oven if you're doing more than 200 pizzas per day.

Bakery: Double-deck electric convection oven plus a deck oven for bread. Blodgett convection plus a small deck oven. Budget $12,000-$18,000 total.

Full-service restaurant: Double-stack gas convection oven. Blodgett or Vulcan. Budget $10,000-$14,000. Add a combi oven if you have the budget and space.

Quick-service or fast casual: Conveyor oven. Lincoln 2500. Budget $15,000-$25,000 for a double-stack. The consistency and speed will pay for itself in labor savings.

Small kitchen or food truck: Countertop combi oven. Rational iCombi Pro or Alto-Shaam. Budget $10,000-$18,000. One piece of equipment that does everything.

If pizza or flatbreads are your thing, a countertop gas-powered pizza oven hits 950°F and costs a fraction of a deck oven. The Ooni Koda 16 is the best-selling option at about $600, and it's portable enough for a food truck or pop-up.

Used vs New: When to Save and When to Spend

Used convection ovens are a good deal. They're simple machines. A 5-year-old Blodgett for $3,000-$5,000 will run another 10 years. Have a tech check the fan motor, door seals, and thermostat calibration before you buy.

Used combi ovens are risky. The electronics, water systems, and steam generators have a lot of failure points. A used Rational that's out of warranty is a $3,000 repair waiting to happen. Buy combis new with a warranty.

Used deck ovens are fine if the stones aren't cracked. Replacement stones cost $300-$800 per deck. Check the door hinges. A sagging door on a deck oven means heat loss and uneven cooking.

One more thing about used equipment auctions. Restaurant auctions are full of 2-year-old ovens from failed restaurants. You can get a $14,000 Blodgett for $4,000. But you need to see it running. Not just plugged in. Actually running at temperature. Bring an infrared thermometer and check that every corner of the deck is within 10 degrees of the set temperature. I bought a "barely used" convection oven at auction once. The thermostat was off by 35 degrees. $600 repair. Still a good deal at $4,600 total, but I would've negotiated harder if I'd checked.

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Before you buy anything, read our essential restaurant equipment list to make sure you're not missing something more important than an oven. And if you're still in the planning phase, our restaurant business plan guide walks through how to budget for equipment without blowing your entire startup capital.

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