With the burner turned up high, why can some home cooks stir-fry a dish full of wok hei in just minutes, while others always feel that "the flame is strong, but the pan just won't get hot enough"? The problem may lie not in how big the flame is, but rather in this: once the flame is lit, how much of it actually becomes heat at the bottom of the pan?
For Chinese cooking, high firepower determines how fast the pan heats up, while high thermal efficiency determines how well that heat is utilized. One is about "whether the flame is fierce enough"; The other is about "whether the heat is actually put to use." Both are indispensable.
In September, DE&E launched its all-new Z7 Super Performance Series Gas Cooktop. Establishing a core performance advantage with an ultra-high 76% thermal efficiency, and powered by dual strong 5.8kW burners, six precise flame levels and three smart features working in synergy, the Z7 Super Performance Series Gas Cooktop responds to the multiple demands of Chinese cooking for firepower, heat efficiency and heat control - making a flame that is not only "fierce," but fully converted into heat and precisely controlled, showcasing the strength of DE&E's next-generation cooktop technology.
I. Ultra-High 76% Thermal Efficiency: Heat Goes Straight to the Pan
The flame may look strong while large amounts of heat escape around the pan; one spot of the pan scorches while the rest is still not hot enough. Behind these common cooking frustrations lies one essential problem: heat is not being fully utilized. Going beyond "how big the flame is," the Z7 first solves the more important question - "how much heat actually stays in the pan."
With 76% ultra-high thermal efficiency as its core performance breakthrough, the DE&E Z7 Super Performance Series Gas Cooktop improves heat utilization from two directions: enlarging the heated area and reducing heat loss. Its 280mm large-diameter disc-type energy-concentrating pan support widens the contact area between the high-temperature outer flame and the pan bottom, heating the entire pan evenly and reducing localized scorching.
The Z7 also features a multi-layer heat-concentrating structure plus a deep vitreous enamel energy-concentrating plate. Its three-layer hollow 3D heat-locking chamber design effectively blocks heat loss and locks heat onto the pan bottom, ultimately achieving 76% ultra-high thermal efficiency - far exceeding China's national Grade 1 energy efficiency standard.
For Chinese cooking, this means firepower is not just about looking big - heat must truly reach the bottom of the pan and convert into real cooking efficiency.
II. Powerful 5.8kW Burners for Effortless Chinese-Style Stir-Frying
High thermal efficiency addresses "how to use heat better," but Chinese-style stir-frying demands something else: the flame must be truly fierce.
The Z7 is equipped with the innovative POWER high-power combustion system, featuring a 120mm large-diameter burner and a tower-shaped double-layer burner head: the upper layer concentrates energy while the lower layer houses a more generous air-gas mixing chamber. A four-chamber internally-driven secondary air supply achieves an optimal air-to-gas ratio for oxygen-rich, highly efficient combustion, and center-flame direct-injection enhancement further strengthens flame focus. With multiple combustion technologies working in synergy, the Z7 delivers a powerful 5.8kW output.
The pan heats up rapidly once over the flame, and concentrated firepower makes stir-frying quicker and sharper. For wok-hei-driven Chinese cooking, the truly ideal flame is not just "fierce" - it must be fierce in a focused way and convert heat to full effect.
That is why the Z7 combines a 5.8kW powerful burner with 76% high thermal efficiency, so "fierce flame" and "effective heat" are no longer an either-or choice.
III. Patented Flame-Focusing Technology: A Concentrated Flame That Never Wanders
From thermal efficiency to raw power, what truly determines performance is whether the flame burns stably and stays focused. At its heart, the Z7 features patented* flame-focusing technology, integrating four proprietary core technologies. The large mixing chamber fully blends gas and air, laying the foundation for stable combustion while further supporting both high efficiency and high power.
Flame-focusing technology goes beyond combustion performance. The one-piece vitreous enamel pan support and energy-concentrating plate share a unified texture, allowing the heat-concentrating structure to blend naturally into the overall design; paired with the extra-large 860×460mm panel and premium alloy control knobs, it delivers greater practicality along with a grand, luxurious visual appeal.
The flame burns steadier and more focused - and the cooktop itself becomes a high-quality statement piece in the kitchen space.
IV. Six Precise Flame Levels for Versatile Cooking
The real complexity of a Chinese kitchen is that a single meal often calls for more than one heat level: fierce heat for stir-frying, steady heat for pan-frying, precise heat for sauce reduction, and gentle heat for slow simmering.
The Z7 offers six precise flame levels ranging from 0.7kW to 5.8kW, dividing heat output into finer zones. From high-power stir-frying and medium-heat sauce reduction to low-heat slow simmering, every cooking scenario finds its ideal flame level - enabling more precise heat control and finer adjustment from preheating to plating.
V. Three Smart Features for Easier Cooking
While firepower improves cooking efficiency, smart features further cut down repetitive tasks in the kitchen.
The Z7 supports hob-hood linkage: the range hood starts and stops automatically in sync with the gas cooktop. A 1–180 minute electronic timer lets you set cooking time effortlessly, while the zero-second ignition valve delivers instant lighting - no more long-pressing to ignite the burner.
From ignition and flame control to timing, the cooktop and other kitchen appliances work together more seamlessly, making the cooking process simpler than ever.
VI. All-New Elegant Design: Stunning Looks, Easy Cleaning
Beyond high performance, the Z7 also rethinks the visual role a cooktop plays in the kitchen space.
The extra-large 860×460mm Luxury Grey nano-crystal glass panel is paired with premium alloy control knobs, creating a more complete and grand visual proportion, while the one-piece vitreous enamel pan support and energy-concentrating plate share a unified color and material language, turning the heat-concentrating structure into part of the overall design. An oil-repellent, water-repellent surface and a detachable modular structure make cleaning and maintenance much easier - delivering a luxurious look without compromising everyday convenience.
VII. Eight-Layer Safety Protection for Worry-Free Cooking
For a premium gas cooktop, reliable safety matters as much as powerful burners.
The Z7 builds eight layers of safety protection across multiple dimensions: explosion-proof construction, heat insulation, anti-slip pan support, flame failure device, child lock, stable ignition, 100% factory inspection, and gas-electric separation - delivering comprehensive safety for high-power cooking, so the flame can be unleashed freely and every ignition brings complete peace of mind.
In 1998, China's first safety-type built-in gas stove was born at DE&E. Over the years, DE&E has continuously studied combustion technology around Chinese cooking habits - from the POWER high-power combustion system to flame-focusing, energy-concentrating and flame-control innovations - driving gas cooktops forward from simply "having a flame" to "a flame that truly understands cooking".
The launch of the Z7 Super Performance Series Gas Cooktop brings DE&E's accumulated cooktop expertise into sharp focus: 76% ultra-high thermal efficiency for more effective heat, dual powerful 5.8kW burners for confident stir-frying, six precise flame levels for accurate heat control, and three smart features for easier cooking. Together with the all-new Luxury Grey design and eight-layer safety protection, the Z7 stands as the premium flagship of DE&E's gas cooktop lineup.
From a single flame to a great meal: what DE&E has always pursued is not just bigger specs on paper, but flame power and thermal efficiency that truly serve Chinese cooking. Under DE&E's brand vision of "Create & Share the Extraordinary," the Z7 is a product expression of the "DE&E light-luxury kitchen" - bringing stronger technology to a kitchen that offers both a premium sense of space and cooking performance built for everyday use.
DE&E Z7 Super Performance Series Gas Cooktop - Ultra-Focused Flames, Precise Flavor!
