boilingwatertap.
Qettle Signature Modern 4-in-1 boiling water tap with 4 litre tank

Qettle

Qettle Signature Modern 4-in-1 (4L)

The Qettle Signature Modern 4-in-1 (4L) is a 100°C boiling water tap from Qettle, at a typical UK price of £870, a 4-litre tank and a 2-year warranty.

Specs last updated 29 July 2026

Square-spout 100°C boiling tap in marine-grade stainless steel

The Signature Modern brings Qettle true-100°C boiling system into a contemporary square-spout silhouette. Marine-grade stainless steel, true 100°C boiling, filtered cold, mains hot and cold from a single tap with two independent levers. The 4-litre insulated tank gives roughly eight cups per dispense.

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Qettle Signature Modern 4L boiling water tap under warm lighting in a dark designer kitchen

Visualised: the Qettle Signature Modern 4-in-1 (4L) in a designer kitchen at dusk, composed from the manufacturer's product photo.

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What we like

  • 4-litre tank serves up to 8 cups in one go
  • Marine-grade stainless steel tap, engineered in the UK
  • Two-stage child safety: button and turn before boiling water flows
  • Choice of round or square spout in stainless, PVD colour or etched finishes

Watch out for

  • 17.5-minute initial heat-up and 10-minute recovery after a full tank
  • Standard kit does not include a pressure reducing valve
  • Two-year warranty

Our take

The Qettle Signature Modern 4-in-1 (4L) reviewed

By Peter Davelaar, who sold boiling water taps from 2016 to 2024

The Qettle Signature Modern 4L is the brand's direct challenge to Quooker at roughly a third less money. At £870 you get a 4-in-1 with a true 100°C dispense, a 4L tank that is a full litre larger than Quooker's PRO3, and a square spout in marine-grade stainless steel. Qettle is British, sells direct, and built its reputation on undercutting the premium incumbents without dropping to the £400 mass-market tier.

The spec-for-money calculation holds up. A 4L tank means more boiled water before the reheat cycle kicks in, which actually matters at dinner parties or for filling a stockpot. The 100°C rating is genuine, and marine-grade stainless resists pitting better than the chrome plating on cheaper rivals. Trustpilot scores for Qettle's installation and aftercare run around four-and-a-half stars, closer to Quooker territory than Fohen or Hanstrom manage.

The weakness is brand presence and resale. Qettle does not have Quooker's installer network or the showroom visibility, so finding a local engineer who knows the system can be harder outside the South East. The styling is also more functional than design-led, so if your kitchen is a Tom Howley or deVOL build, the Qettle will not match the visual ambition. Buy it for the 4L tank and the 100°C boil, not because it will impress visitors.

Features

  • True 100°C boiling water
  • Marine-grade stainless construction
  • Two-lever operation with safety clip
  • 4-litre insulated tank
  • Square contemporary spout

Available finishes

  • Stainless Steel
  • Brass
  • Gunmetal
  • Black
  • Brushed Brass

Group tests

Where the Qettle Signature Modern 4-in-1 (4L) ranked

Running cost

What this tap really costs to own.

Headline price is half the story. The Qettle Signature Modern 4-in-1 (4L) draws around 14 W at idle and reheats whenever the tank cools. Use the calculator with your own electricity tariff and household usage to see the 10-year total.

Installing soon? Installation costs and water hardness by UK city

Idle draw
14 W
Tank capacity
4 L
Boiling temp
100°C
Warranty
2 yr

Owner reviews

What 1,591 owners report

Aggregated from 1 public review sources. Methodology · Last refresh 3 Aug 2026

Weighted average

4.5out of 5

Trustpilot

4.5 / 5

1,591 brand-wide reviews · 83% five-star · 5% one or two

Read on Trustpilot

Refreshed 3 Aug 2026

Own the Qettle Signature Modern 4-in-1 (4L)? Your experience helps the next buyer more than any spec sheet.

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Counts and ratings are factual aggregates from public review pages on the linked sources. Themes are our own paraphrased summary. No review text is reproduced verbatim. See full methodology.

Common questions

Qettle Signature Modern 4-in-1 (4L): your questions

How much does the Qettle Signature Modern 4-in-1 (4L) cost?
The Qettle Signature Modern 4-in-1 (4L) has a typical UK list price of £870, before installation.
Does the Qettle Signature Modern 4-in-1 (4L) dispense water at 100°C?
Yes. The Qettle Signature Modern 4-in-1 (4L) dispenses genuinely boiling water at 100°C.
How big is the Qettle Signature Modern 4-in-1 (4L)'s tank?
The Qettle Signature Modern 4-in-1 (4L) has a 4-litre boiling water tank.
Does the Qettle Signature Modern 4-in-1 (4L) filter the water?
Yes. The Qettle Signature Modern 4-in-1 (4L) dispenses filtered water through a Q08 extruded carbon block cartridge.
How much electricity does the Qettle Signature Modern 4-in-1 (4L) use on standby?
The Qettle Signature Modern 4-in-1 (4L) draws a manufacturer-stated 14 W to keep its tank hot around the clock. You can turn that into a cost on your own tariff in our running cost calculator.
What warranty does the Qettle Signature Modern 4-in-1 (4L) come with?
The Qettle Signature Modern 4-in-1 (4L) comes with a 2-year warranty on the tap and tank. Read the terms, as some brands limit cover if a non-brand filter is fitted.

Reader reviews

From people who own the Qettle Signature Modern 4-in-1 (4L)

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