La Cornue Château 120 vs 150
La Cornue Château 120 vs 150 is a common question among La Cornue owners. This guide walks through it step by step with technician-grade detail.
The Château 120 and 150 are both dual-vaulted-oven ranges, so the decision between them is less about oven count and more about scale, rangetop real estate, and how grand a centerpiece you want. This guide compares the two.
Château 120 (47.2″ / 120cm)
The 120 is dual-fuel with one gas vaulted oven and one electric vaulted oven, and rangetop configurations E0–E5, ED, EF, and EI. It is the entry point into La Cornue’s dual-oven world and fits many high-end residential kitchens without requiring a commercial-scale footprint.
Château 150 (59.1″ / 150cm, US prefix G45)
The 150 carries two vaulted ovens with even more rangetop space, supporting configurations K1–K6 plus KH, KM, and KI (induction). The added width lets you specify ambitious module combinations — for instance, a French Top, a bank of brass burners, and a grill or induction zone together. In the US market the 150 carries the G45 SKU prefix.
Where they differ
- Width: The 150 is roughly a foot wider, dominating the kitchen wall as a statement piece.
- Rangetop modules: 150 (K-series) offers more simultaneous module combinations than 120 (E-series).
- Ovens: Both have two vaulted ovens; oven layout differs with size.
- Clearance and venting: The 150 needs a larger hood and more surrounding clearance.
Choosing between them
Pick the 120 if it fits your space and your cooking rarely demands more than the modules it supports. Step up to the 150 if you want a grander focal point and the flexibility to run several cooking modules at once for large gatherings. If you are pushing toward the very top of the line, also compare the Château 150 vs 165.
Planning the install
Larger Châteaus require careful planning for gas, electrical, anti-tip, and hood sizing. Review our installation requirements guide before you order, and confirm exact dimensions on lacornueusa.com.
Service across the range
Whether you choose the 120 or the 150, our certified technicians handle dual-oven Château service from igniters to thermostats to convection components. Schedule a service appointment to keep a large La Cornue running flawlessly.
Rangetop real estate is the real story
Since both ranges carry two vaulted ovens, the decision turns on how much rangetop you want. The 150’s K-series layouts support more simultaneous modules than the 120’s E-series — enough to run a French Top, a bank of brass burners, and a grill or induction zone together without crowding. If you cook several components at once for large gatherings, that extra surface is the 150’s defining benefit. Our rangetop configuration guide explains how the modules combine.
Weight, structure, and venting
The 150 is roughly a foot wider and considerably heavier than the 120. Confirm the floor can bear the load and is level, plan anti-tip provisions, and size a hood that fully covers the wider cooking surface with adequate CFM. These steps are not optional on a range of this scale — see our leveling and anti-tip guide.
Frequently asked
- Does the 150 cook differently? No — both use the same vaulted-oven principle; the 150 simply offers more cooking stations at once.
- Is the US G45 prefix important? Yes, quote it when sourcing 150-specific parts so the service center matches the right components.
Which one belongs in your kitchen
Pick the 120 if it fits your wall and your cooking rarely outgrows the modules its E-series layouts support — it is the more practical of the two for most homes. Step up to the 150 if you want a grander focal point and the freedom to run several cooking stations at once for large gatherings. Because the 150 is wider, heavier, and needs a larger hood, the decision is as much about the room as the cooking. If you are pushing toward the very top of the line, also weigh the Château 150 vs 165 comparison.
