Gaggenau 400 Series Built-under Induction Cooktop CU421100 21cm - hero product shot, compact under-counter unit, front view
Gaggenau 400 Series Built-under Induction Cooktop CU421100 - lifestyle installation shot under worktop
Gaggenau 400 Series Built-under Induction Cooktop CU421100 - angled view showing compact induction surface
Gaggenau 400 Series Built-under Induction Cooktop CU421100 - detail of connection hardware
Gaggenau 400 Series Built-under Induction Cooktop CU421100 - in-use shot with pan on induction zone
Gaggenau 400 Series Built-under Induction Cooktop CU421100 - close-up of induction zone and touch controls
Gaggenau 400 Series Built-under Induction Cooktop CU421100 - side profile showing under-counter installation depth

CU421100

• In stock

Gaggenau 400 series 21 cm built-under induction cooktop

Induction hob

£POA
  • Best price guaranteed
  • Approved Gaggenau partner

You have 0 items in your multibuy quote

Loading delivery date...
Speak to a real person

Speak to a real person

Give our team a call on 0113 868 3586

The invisible cooktop from Gaggenau

The Gaggenau 400 Series built-under induction cooktop redefines how cooking integrates into the kitchen. Installed beneath the worktop, it allows you to cook directly on the surface while keeping the kitchen visually uninterrupted. Induction technology delivers fast, precise heat through the worktop material, creating a seamless cooking experience that appears only when in use. It’s a solution designed for kitchens where architecture and function are treated as one.

  • Invisible induction cooking - installed beneath the worktop, allowing you to cook directly on the surface.
  • Seamless integration - maintains a completely uninterrupted worktop when not in use.
  • Cooking zone light - small LED shines through your worktop to show operation and residual heat.
  • Only with Dekton - designed specifically for 12 mm Dekton worktops
  • Precision rotary controls - 12 power levels that deliver consistent and repeatable heat.

Specifications

General / Design
Surface Material Stainless steel
Colour Stainless steel
Dimensions (WxHxD) 322 x 96 x 610 mm
Connections Electrical connection 220 - 240v
LED Display Colour Orange
Min Kitchen Unit Width 400 mm
Min Worktop Thickness 12 mm Dekton
Mount Built-under
Net Weight 4.5 kg
Scratch Protection Standard
Surface Finish Brushed steel
Functions & operations
Cooking Zones 1 Zone (Ø210 mm)
Display Control Rotary control knobs
Features & Functions Keep warm setting, booster function, illuminated control knobs, cooking zone center light,
Operation Induction
Temperature Control 12 Power levels
Technical
Safety Features Child lock, electronic door lock, safety shut off, thermally insulated door, triple glazing
Optional Accessories Enhanced surface protector Ø10-14, Ø15-18, Ø19-23
Safety Features Only operates with enhanced surface protector, operation indicator, automatic pan detection, 2-stage residual heat detection directly on the surface and the control knob, safety shut off
What's Included Gaggenau 400 series built-under induction cooktop (CU421100)
Downloads
CU421100 Datasheet
CU421100 Instruction

We beat 97% of quotes

Talk to a human

Appliances can sometimes be confusing, that's why sometimes it's just easier to speak to a real person.

Call us on 0113 856 2023

FAQs

We've heard it all before

I can’t find an appliance I’m looking for on your website?

We’ve launched our new website with a small selection of brands while we continue to build it out.

We supply far more than what's currently shown, including Siemens, Neff, Miele and many more - all at competitive prices.

If you can’t find what you’re looking for, just get in touch.

What is ‘Multibuy’ and is it worth it?

Multibuy simply means buying two or more appliances together - so we can offer you a better price.

The more you purchase, the better the price we can offer - so in most cases, it’s definitely worth it.

Why should I purchase appliances from you?

Rather than just telling you, take a look at what our customers say about us on Trustpilot. It’s far more meaningful than anything we could say here.

You'll see the same things come up again and again - competitive pricing, honest advice, personable service, reliable delivery and proper aftercare.

I’m not sure which appliances to choose?

We get it, it can be overwhelming, especially with so many options available. That's what our experts are for.

They’re known for taking the time to properly understand your requirements, and guiding you through your options.

They’ll help you choose the right appliances to suit your space, your needs, and your budget.

How does delivery work?

All appliance orders are delivered free to UK mainland addresses (excluding certain parts of Scotland) via private courier, ensuring safe handling in transit.

Our delivery is reliable, accurate, and flexible - it’s something we’re really proud of.

Didn't find your answer?

Contact our appliance specialists