Some boiling water taps are 4-in-1, so can also filter cold drinking water and act as your ordinary household tap as opposed to being used additionally. If you want to keep your existing taps, Grohe also produces a Red Mono version without mixers that sits next to your current tap. The Qettle’s affordability is down to a clever design with four different waterways. That means there’s no electronic components to switch between sources (read: less to go wrong). The boiler comes in three sizes – 2, 4 or 7 litres – and the taps are stainless steel and engineered in the UK. Plus, it's well worth considering the time you'll save too on waiting for your kettle to boil – hot water taps are considerably speedier to use.

Not all models dispense water at 100˚C and sometimes that can be a good thing. A model that dispenses fully boiled water is best for sterilising items such as baby bottles, but you don’t really need water at 100˚C for most domestic uses. A maximum temperature of 98˚C is perfectly hot enough for the vast majority of applications, including filling saucepans and making tea. Just below boiling is always best for brewing coffee and delicate herbal teas. Are boiling water taps expensive to run? The unobtrusive 2.5 litre tank fits easily under a sink to supply water at all temperatures, and all hot water that comes out is filtered, too. For those who are style-conscious, it's available in two shapes and several finishes to complement your kitchen. In terms of safety, it has a push-lever safety mechanism to prevent accidents. Its best quality is by the far its adjustable thermostat, making it the best boiling water tap for temperature control. Ah, the million-dollar question. Most manufacturers state that a boiling water tap costs about 3p/day to run when in standby mode (although electricity prices have changed dramatically since such claims were made). A kettle, by comparison, costs about 2p to boil a litre of water. This model will also dispense filtered cold and filtered 100°C boiling water, and it’s available in three boiler tank choices: 2, 4 or 7 litres. The two-litre tank is good for up to four cups of boiling water, while the larger seven-litre option delivers around 14 cups’ worth. The water stays on once your hand has left the activation sleeve – a good thing for filling saucepans – and it gushes out pretty forcefully, which means it’s not ideal for pre-heating a small espresso cup.

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It is a stylish – and child friendly – design, and has great functionality. Also suitable for use as a regular hot and cold tap, this piece of kit will replace the kettle and revolutionise your current sink set-up. A super-safe hot water tap that boasts a stylish design and great build quality, the Grohe Red Duo absolutely deserves a spot in our round up of the best boiling water taps.

Beautiful and functional taps for every budget

With the ability to turn 360°, you have full water control, whether you want to use it as a regular tap over the sink or prepare a cup of tea on the bench. Most of these appliances make boiling water available at an instant, hence the name. It takes on average three minutes for a kettle to boil. If you have one cup of tea or coffee per day, that is 18 hours per year you are waiting for the kettle to be ready. Key specs – Type: Monobloc mixer boiling water tap; Handle Style: Twin lever; Colours: Chrome, brushed stainless steel; Height: 300mm; Guarantee: Tap, 5yr Tank, 2yr Inbuilt electric safety features include sensors providing accurate external digital readings of current water temperature and maintenance of water levels, preventing the tank from ever starting dry or overheating

Boiling water taps provide households with the luxury of instant hot water without the need to use any kettles or add to household bills from boiler use. Some can act as just a kettle separate to your ordinary tap, and some are all-in-one, replacing your existing one. Look out for designs that come with a filter to purify the water before it enters the boiler tank. This will not only remove prevent limescale build-up in the tank, but it will also make the water taste better.Whether you are after steaming hot water or filtered drinking water, the Pronteau can help you out. It also provides regular everyday hot and cold water as you would find with a regular tap too, hence the 4-in-1 name.