The ThermadorCEM305TB 30" electric cooktop brings professional‑style performance and refined design together in a sleek, frameless black‑glass surface that virtually disappears into your countertop. At approximately 31" wide, it offers four radiant elements and an impressive eight cooking zones, giving you the flexibility to handle everything from a single saucepot to a full griddle breakfast without crowding. The smooth glass‑ceramic surface not only looks sophisticated in modern and transitional kitchens, it also wipes clean easily after high‑heat searing or gentle simmering, so your cooktop stays as polished as the rest of your space.
What truly sets the CEM305TB apart is its combination of advanced heating technology and intuitive control. Heavy‑duty stainless‑steel metal knobs provide precise, analog-style control that many serious cooks prefer, while the variable 9‑stage power setting lets you dial in exactly the heat you need, from a powerful boil down to a delicate melt. A standout feature is the Dual Zone Bridge element, which connects two round cooking zones into one extended heating surface; this allows you to evenly heat large griddles, roasting pans, or oblong cookware that standard round elements simply can’t handle as effectively. Complementing this is the Triple Zone center element, which nests three element sizes in a single location so you can match the heating area to the diameter of your pan, improving efficiency and reducing energy waste.
Safety and everyday convenience are built into the design. Residual heat indicators clearly show when the surface is still hot, giving you a visual reminder long after the element is turned off. The frameless edge not only contributes to a seamless, built‑in look, it also makes it easier to slide heavy pots on and off the cooking zones without catching on a metal trim. With its combination of bridge and triple elements, robust knob controls, and a generous 31" width, the ThermadorCEM305TB delivers a level of flexibility and control that many standard electric cooktops in its class simply don’t match, making it an ideal upgrade for home chefs who want restaurant‑inspired capability in a clean, minimalist package.
• Thermador® Masterpiece® Series design – premium electric cooktop line known for sleek styling, precise control, and high‑end performance.
• Black Glass frameless surface – smooth, modern glass‑ceramic top without a metal frame for a clean, built‑in look and easier wipe‑clean maintenance.
• Heavy‑duty Stainless Steel Metal Knobs – stylish front‑mounted metal knobs that provide precise, tactile temperature control and a professional appearance.
• 30" electric cooktop width – standard 30‑inch size fits most cooktop cutouts while offering ample cooking space for everyday meals.
• Four radiant heating elements – 4 electric elements provide versatile cooking options for boiling, simmering, sautéing, and frying.
• Eight total cooking zones – multiple zone configurations allow better matching of element size to different pots, pans, and griddles.
• Dual Zone Bridge element – connects two round cooking zones into one larger zone to evenly heat griddles, large pans, and oblong cookware.
• Triple element cooking zone – three concentric heating rings in one location adapt to small, medium, or large cookware for efficient heating.
• 9‑Stage Power Setting – nine distinct power levels from gentle simmer to high heat for more precise temperature control than traditional low/medium/high settings.
• Front‑mounted knob controls – easy‑to‑reach control layout keeps adjustments convenient without reaching over hot cookware.
• Clear residual heat indicators – visual “hot surface” indicators show which zones remain hot after use to help prevent accidental burns.
• Separate residual heat display per zone – individual indicators for each element make it easy to see exactly where the surface is still hot.
• High total power output (approx. 8,200 W) – strong overall wattage supports fast boiling and high‑heat cooking across multiple elements.
• Flexible two‑ring cooking zone – adjustable diameter on select elements improves efficiency by matching heat area to pan size.
• Surface‑mount, no‑frame installation – designed to sit nearly flush on the countertop for a seamless, integrated appearance.
• Built‑in installation design – fits standard cutout dimensions for straightforward replacement of many existing 30" electric cooktops.
• Included glass scraper – dedicated scraper tool helps safely remove cooked‑on spills from the glass surface without scratching.
• 240/208 V hard‑wire connection – compatible with typical North American electric cooktop circuits for reliable, high‑power operation.
• Compact overall height – low profile under‑counter depth helps with tight cabinet spaces and allows more room for drawers or storage below.
• CSA certified – tested to meet recognized safety and performance standards for electrical appliances.
• ADA‑friendly design aspects – front controls and smooth top can support accessible kitchen layouts when installed to applicable guidelines.
• Easy‑clean glass‑ceramic surface – flat, continuous top with no burner grates or crevices simplifies daily cleaning and spill removal.
• Modern black finish – neutral black glass complements a wide range of cabinet colors and stainless or black appliances.
• 30" cutout compatibility – designed to fit common 28 3/4" x 19 7/8" cutouts, reducing or eliminating countertop modification during replacement.
• Radiant heating technology – under‑glass radiant elements provide fast response and even heat distribution for most cookware types.
• Four dedicated cooking positions – front and rear zones arranged for convenient use of multiple pots and pans at once.
• High‑visibility control markings – clearly labeled knob positions and power levels help users quickly set and repeat preferred heat settings.
• Safety time‑switch‑off support (circuit dependent) – compatible with typical electric cooktop safety practices, helping reduce risk of unattended high‑heat operation.
• Durable construction – robust materials and premium components designed for long‑term use in busy home kitchens.
Manufacturer's Warranty: 2 years
Canadian model: CEM305TB
Canadian UPC: 825225924845
EAN: 0825225924845
Dual Zone Bridge connects two round cooking zones
CEM305TB - Dual Zone Bridge connects two round cooking zones
Evenly heat large pans, griddles, and oblong cookware with connecting heat bridge and dual-zone elements, exclusive to Thermador®.
Black Glass with a frameless design
CEM305TB - Black Glass with a frameless design
Black Glass creates a sleek design to complement any kitchen.
Know when your cooktop is hot
CEM305TB - Know when your cooktop is hot
The cooktop clearly indicates when elements are still hot.
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Download Product Specs (CEM305TB-product-specs-canada.pdf)