Comstock-Castle CCCO-2 Gas Convection Oven, Double Deck, 108,000 BTU

The Comstock-Castle CCCO-2 is a double-deck full-size gas convection oven built for high-volume restaurants, bakeries, banquet lines, and ghost kitchens. Two fully independent cavities stacked in one footprint: 10 full sheet pans per cycle, 108,000 total BTU, two-speed fans, and porcelain interior. Two separate 120V plugs run the show, two 3/4 inch gas connections feed it, and a NG/LP conversion kit comes in the box.

What You Get

• Two independent oven cavities, 54,000 BTU each, 108,000 BTU total
• 5 wire racks per cavity (10 racks total), 11 rack positions per cavity
• Standard depth (pans load side-to-side, 18 by 26 inch full sheets)
• Independent stainless steel doors per cavity with double-pane tempered glass windows
• Two-speed hi/low oven blower motor per cavity, 1/2 horsepower
• Two interior oven lights per cavity (4 lights total)
• Electronic thermostat and automatic ignition on each cavity
• Manual timer controls per cavity (each side runs its own program)
• 120V, 60Hz, single-phase, 6.5 amps each cavity, two 72-inch cords with NEMA 5-15 plugs
• Two 3/4 inch rear gas connections
• NG/LP conversion kit included
• Heavy-gauge steel framing with no-sag insulation
• Stainless steel front, sides, and top
• Porcelain easy-clean cavities
• Powder-coated steel legs with casters
• cCSAus design certified and CSA-Sanitation (ANSI-NSF4) certified

Specs at a Glance

Who the CCCO-2 Is For

Pick the CCCO-2 if you need 10 full sheet pans per cycle in the same floor footprint as a single oven and you want each side to run a different program. Best fit:

• Full-service restaurants doing 300 to 800 covers a night
• Bakeries running parallel bread and pastry programs (different temp on each side, same time)
• Banquet kitchens prepping 250+ plated meals per seating
• Catering operations needing simultaneous roast-and-bake throughput
• Ghost kitchens running two brands off one piece of equipment
• Schools and institutional foodservice with high-volume meal prep windows

Need a single deck instead? See the CCCO-1 (5 sheets, 54,000 BTU, same width). Or browse our full convection oven collection.

Two Independent Cavities, Two Independent Programs

The defining feature of the CCCO-2: each cavity is fully independent. Separate thermostat, separate fan, separate timer, separate ignition, separate gas connection, separate 120V cord. Run sourdough at 425F on the top deck while you roast prime rib at 325F on the bottom. When the bread comes out you don't have to wait for the cavity to recover or fight the other team for oven space. Two ovens, one footprint.

Independent Doors on Both Cavities

The CCCO-2 ships with independent stainless doors on each cavity, not 50/50 dependent doors. Independent means each door opens on its own handle. When you're pulling a single sheet off the bottom rack of the lower oven, you only break the seal on one side of one cavity. Cuts heat loss roughly in half on every door-open event, which adds up to faster recovery, lower fuel bills, and tighter bake consistency across a double-deck shift.

Two 120V Plugs: No Electrician Required

Each cavity runs on a standard NEMA 5-15 plug at 6.5 amps total draw. You need two dedicated 20-amp 120V outlets, but no 208V or 240V upgrade and no 3-phase service. This is the spec that turns a $6,000 install gotcha into a same-day setup for restaurants in older buildings, food halls, and strip-mall locations wired single-phase.

Installation Requirements

• Gas: Two 3/4 inch rear connections (one per cavity). Optimal supply pressure 5" WC for natural gas, 10" WC for propane. Pressure regulator on each gas line.
• Electrical: Two standard 120V outlets on separate dedicated 20-amp circuits. Don't share with a fryer or refrigerator.
• Ventilation: Type 1 grease hood required under NFPA 96. Plan roughly 300 CFM per linear foot of medium-duty wall canopy hood. See our commercial oven hood guide.
• Clearance: 6 inches rear, 1 inch sides, 6 inches above for service access.
• Floor: Level, rated for 800 lbs unit weight. Casters allow rolling for cleaning behind.
• Ceiling: Plan for 68.8 inches overall height plus 6 inches service clearance above (75 inches minimum).
• Delivery: The CCCO-2 ships in two crates and is assembled on site. Confirm liftgate and clear path to install location.

How to Use a CCCO-2 (25/25 Rule)

The fans move heat about 25 percent more efficiently than still-air radiant ovens. Convert any conventional recipe by dropping the temperature 25F and cutting the time 25 percent. A 350F / 60 minute conventional roast becomes a 325F / 45 minute CCCO-2 roast. Full recipe protocols for bread, roasting, and pastry are in our commercial convection oven guide.

Maintenance

• Daily: Wipe both porcelain interiors with a damp cloth (cold). Empty crumb trays. Vacuum visible debris near both fan intakes.
• Weekly: Pull racks, clean rack supports, deep wipe both cavities, clean all four glass doors inside and out.
• Monthly: Vacuum both fan housings and motor exhaust louvers. Inspect door gaskets on both cavities. Calibrate each thermostat against an external thermocouple.
• Quarterly: Pull fan baffles on both cavities, clean blades, inspect burner ports for soot.
• Annually: Replace gaskets at first sign of compression set. Technician inspection of both igniters and both fan motor bearings.

The porcelain interior on the CCCO-2 cleans faster than stainless or aluminized steel: spray, wipe, done. Don't use abrasive scrubbers; they micro-scratch the porcelain and trap grease.

Warranty and Support

Comstock-Castle has built commercial cooking equipment since 1838. The CCCO-2 ships with the manufacturer's standard parts and labor warranty (see manufacturer site for current terms). Parts and field service available through the Comstock-Castle dealer network nationwide.

Frequently Asked Questions

Is the CCCO-2 natural gas or propane?

Both. Ships configured for natural gas with a propane conversion kit included. Conversion involves swapping the orifices and adjusting the pressure regulator; have a qualified gas technician do it on both cavities. Optimal supply pressure is 5" WC for natural gas, 10" WC for propane.

How many sheet pans does the CCCO-2 hold?

Ten 18" x 26" full sheet pans total: 5 per cavity. Each cavity has 11 rack positions so you can space racks closer for shorter items or wider for taller loads.

Can I run two different temperatures on the CCCO-2?

Yes. Each cavity is fully independent: separate thermostat, fan, timer, and ignition. Run 425F bread on the top while you roast 325F prime rib on the bottom.

Does the CCCO-2 need a hood?

Yes. NFPA 96 requires a Type 1 grease hood over gas commercial cooking equipment. Plan roughly 300 CFM per linear foot of medium-duty wall canopy hood.

What electrical service does the CCCO-2 need?

Two standard 120V, 60Hz, single-phase outlets, 6.5 amps each. Each cavity has its own 72-inch cord with a NEMA 5-15 plug. Each plug needs its own dedicated 20-amp 120V circuit. No electrician install required.

How tall is the CCCO-2?

68.8 inches overall with casters. Plan ceiling clearance of at least 75 inches to allow 6 inches of service access above the unit.

Does the CCCO-2 ship assembled?

No. The unit ships in two crates (one per cavity) and is assembled on site. Each crate is 525 lbs gross. Confirm liftgate delivery and a clear path to the final install location before scheduling.

What's the difference between the CCCO-1 and CCCO-2?

Footprint is the same width (38 inches) and depth (41.3 inches). The CCCO-2 stacks two cavities for 10 sheet pans and 108,000 total BTU vs the CCCO-1 single cavity at 5 sheet pans and 54,000 BTU. The CCCO-2 is 68.8 inches tall; the CCCO-1 is 61.7 inches tall. Each cavity on the CCCO-2 runs identically to a single CCCO-1.

How long does a CCCO-2 last?

With proper maintenance, 12 to 20 years. Porcelain interior, heavy-gauge steel frame, and electronic thermostat with manual timer (fewer failure modes than full digital boards) all built for the long haul. Door gaskets typically need replacement every 2 to 5 years; fan motors run 7 to 12 years.