How induction heating works
Thermador induction cooktops generate heat through electromagnetic induction — an alternating current flows through a coil beneath the glass surface, creating a rapidly oscillating magnetic field. When a ferromagnetic pan (cast iron, magnetic stainless steel) is placed on the surface, the magnetic field induces eddy currents in the pan’s base. These currents generate heat directly in the cookware — the cooktop surface itself doesn’t generate heat.
Why Freedom Induction is different
Standard induction cooktops have fixed zones with single coils. Thermador Freedom Induction replaces fixed zones with a matrix of small coils covering the entire glass surface. A sensor array beneath the glass detects exactly where you place a pan, what size it is, and its shape. Only the coils directly beneath the pan activate — the rest stay off. Move the pan, and the active coils follow it in real time.
Efficiency advantage
Induction transfers 85-90% of energy directly to the food vs 40-55% for gas. Water boils roughly twice as fast as gas. The glass surface stays relatively cool because it’s heated only indirectly (heat transfers from the hot pan back to the glass). This makes induction safer and easier to clean — spills don’t bake onto a hot surface.
Cookware compatibility
Only ferromagnetic cookware works: cast iron, enameled cast iron, magnetic stainless steel. Aluminum, copper, glass, and non-magnetic stainless steel won’t heat. Test with a magnet — if it sticks firmly to the pan bottom, the cookware is compatible. Some “induction-ready” pans have a magnetic disc bonded to a non-magnetic body.
Need professional Thermador Cooktop service?
If troubleshooting doesn’t resolve the issue, our factory-certified Thermador technicians can help. We service all Thermador Cooktop models across all 50 states with genuine OEM parts and a 30-day labor warranty. Schedule service online — same-day booking available.
Related Thermador resources
- Thermador Cooktop repair service — certified technicians in all 50 states
- Thermador error code database — search all Cooktop error codes
- Thermador model database — specifications and repair info by model number
- Thermador official site — official specifications, manuals, and product information
Important notes for Thermador cooktop owners
- Always use genuine OEM parts — aftermarket components may fit but can compromise performance, safety, and warranty coverage on Thermador appliances
- Never ignore error codes — Thermador codes are diagnostic aids designed to prevent small issues from becoming major failures. Address them promptly
- Keep your owners manual accessible — it contains model-specific maintenance schedules and troubleshooting trees. Digital versions are available on the Thermador official site
- Document issues before calling — note error codes, symptoms, when they started, and patterns. This helps the technician diagnose faster
- Use surge protectors — power fluctuations damage electronic control boards. A quality surge protector protects your investment
