Rommelsbacher CT 3420/IN at a glance
In short: the Rommelsbacher CT 3420/IN scores 8,5/10 in our double hob review (from €148). Biggest strength: very flat (only 4.3 cm). Main compromise: most expensive in the comparison.
All specifications come from manufacturer data sheets and the Amazon catalogue and were cross-checked before publication. The rating is an editorial overall assessment based on this data; we do not trial products ourselves.
Rommelsbacher CT 3420/IN: what works, what doesn't?
What works well
- Very flat (only 4.3 cm): flattest hob in the comparison, space-saving & flush
- Frameless glass-ceramic: elegant and particularly easy to clean
- Slider touch & 180-min timer: fine control, residual heat indicator, key lock
- Pots up to 26 cm: also takes larger pans
Points of criticism
- Most expensive in the comparison: around €148, a brand premium
- Power shared across 2 zones: 3,400 W applies to both plates together
- Fan keeps running / slider sensitive: run-on audible, touch reacts to damp fingers
Specifications in detail
| Type | Double induction, frameless, slim (4.3 cm high) |
| Cooking zones | 2 separately adjustable, pots Ø 12 to 26 cm |
| Total power | 3,400 W (2,000 W + 1,400 W) |
| Speeds | 10 power / 10 temperature levels (60 to 220 °C) |
| Timer | yes, 180 min with beep |
| Safety | Pot detection, overheating protection, key lock, residual heat indicator |
| Controls | Slider touch (swiping) |
| Surface | full-surface glass-ceramic (frameless) |
| Dimensions / weight | approx. 60.3 × 36.3 cm · height 4.3 cm · 4.55 kg |
| Brand | Rommelsbacher (established) |
What does it cost to run?
At a maximum of 3,400 W power draw, an hour of use at 35 ct/kWh (German electricity price) costs about €1.19. That applies at full load; real cooking and working cycles usually run lower.
Calculation basis: 35 ct/kWh (German electricity price, 2026, rounded). Values from the manufacturer data sheet; actual costs depend on use and tariff.
Build quality & everyday use
What carries the Rommelsbacher CT 3420/IN in everyday use: Very flat (only 4.3 cm) (flattest hob in the comparison, space-saving & flush) and Frameless glass-ceramic (elegant and particularly easy to clean). We have to be honest about the weaknesses: most expensive in the comparison, at around €148, a brand premium.
If you set the device up to save space, make sure it stands on a stable, level surface with some air around it. This protects the mechanics and electronics in continuous use.
Who is the Rommelsbacher CT 3420/IN suited to? (buying advice)
Perfect for:
- ✓Anyone who wants a brand & flat design
- ✓Small kitchen (stores flat)
- ✓Larger pots up to 26 cm
Less suitable for:
- ✕Tight budget (most expensive)
- ✕Anyone who uses aluminium or glass pots
- ✕Anyone who avoids sensitive touch controls
Rommelsbacher CT 3420/IN compared with alternatives
Head-to-head with the top alternatives from our double hobs comparison
| Feature | Rommelsbacher CT 3420/IN | AMZCHEF Doppel-Induktion 3500W | MEDION MD18493 |
|---|---|---|---|
| Type | Induction | Induction | Induction |
| Power | 3,400 W | 3,500 W | 3,500 W |
| Control | 10 levels, 60 to 220 °C | 20 levels + timer | 10 levels + timer |
| Pots | induction-compatible | induction-compatible | induction-compatible |
| Weight | 4.6 kg | 4.1 kg | 4.2 kg |
Similar double hob models
Frequently asked questions about the Rommelsbacher CT 3420/IN
What does the flat design of the Rommelsbacher CT 3420 bring?
How does the slider touch operation work?
Rommelsbacher CT 3420 or AMZCHEF: which induction hob?
Do the zones share the power on the Rommelsbacher too?
Verdict: is the Rommelsbacher CT 3420/IN worth it?
A safe choice in its class: if you can live with being the most expensive in the comparison, from €148 you get mainly one thing: very flat (only 4.3 cm). It suits best: anyone who wants a brand & flat design.
If you want to compare alternatives, you will find detailed data and reviews on our double hobs comparison page.
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