Instant hot water taps: a buyer’s guide

At a glance guide to buying a fitting that delivers boiling water in seconds.

By Becca Green | 8 December 2020

An instant hot water tap provides water at temperatures up to 100°C.  They are a significant investment, so it’s worth doing your research before you part with your cash. Jamie Blake, creative director and owner of Blakes London, offers his advice on the the main factors to consider.

Instant hot water tap in a copper finish from Qettle

Instant hot water tap in a copper finish from Qettle

Check the temperature

It is worth spending as much as you can on a boiling water tap. Opt for a reputable brand to ensure quality and reliability. Not all hot water taps deliver water at 100°C, which is the ideal temperature for brewing black and herbal teas. So, check before you buy if that is what you want. Quooker, Franke and Qettle all deliver water at this temperature.

Can you spare the space?

The water tank is fitted in the cabinet underneath the sink. Depending on the brand you choose, you might lose a quarter of your cupboard space or more. The size of the tank will affect how much water is dispensed in one go. So, check its capacity, as this varies in different models and ranges from 2-11 litres. The unit will also need a power supply.

An instant hot water tap in black and chrome

A pullout design in chrome and black from Blanco

Protecting you and your family

All boiling water taps should have some form of lock or safety button to prevent scalding while using normal functions. Many designs also include thermally sealed and anti-splatter spouts.

Limescale control

Though an instant hot water tap is fairly maintenance-free, you will need to invest in a limescale-control unit. Otherwise, you’ll occasionally have to remove the limescale residue. Lemon juice or white vinegar is effective at removing the deposits.

Keep it working well

The filters will also need changing at regular intervals. This may depend on water usage, and some taps indicate when it is necessary, but otherwise aim to do it every six to 12 months.