Best Boiling Water Tap 2026: 9 Ranked

This is the tap to buy if you want the whole job done from one mixer: boiling water, filtered cold water for drinking and the ordinary hot and cold you already had. It leads because it pours at 100°C at the spout, and because 683 buyers have rated it 4.4, more than any other tap with a true boil. At £620 it is the dearest thing here, and it buys three appliances in one hole.

The number that matters is 100°C, and QETTLE is the only maker on this page that reaches it: the Ellsi 3-in-1 stops at 98°C and the YAMATARO 4-in-1 also stops at 98°C. In practice 100°C is where tea and coffee extract properly, which is why this tap carries a premium of £425.02 over the £194.98 Ellsi. The other three functions come from the same single-hole deck-mounted body: filtered cold water for drinking, plus a normal mixer for everything else.

The catch is the price and the fourth function. This is £220 more than the QETTLE 3-in-1 at £400, which boils at the identical 100°C, so if nobody in the house drinks chilled filtered water straight from the tap you are paying for a tap you will not use. The YAMATARO 4-in-1 answers a different need for £339: a stated 2.5-litre boiler and a 7 to 10 cup claim, against no published cup count on this one.

This is for the kitchen that wants boiling water at a true 100°C plus ordinary hot and cold, and has no use for filtered drinking water at the sink. It sits second only because the 4-in-1 does everything it does for £220 more and adds a fourth function; on temperature the two are identical. For a two-person home it is the sensible end of the QETTLE range.

The 2-litre boiler gives about 4 cups in one go and refills in roughly 10 minutes, which covers a couple of rounds of tea without thinking about it. Safety runs in two stages: a clip that makes the boiling action impossible until you take it off, then a button pressed while the handle turns clockwise. A limescale filter is included and an LED tells you when the cartridge is due, which matters because limescale is what kills a boiling tank.

The limit is capacity and the fourth function. Four cups per boil means a full house waits for the reheat, and there is no filtered cold water. The Ellsi 3-in-1 at £194.98 does hot, cold and 98°C boiling with a 2.4-litre tank for £205.02 less, and 124 owners rate it 3.9. If you rarely need the last 2°C, that saving buys a lot of filter cartridges.

This suits a one or two person kitchen where 2 litres covers the day's hot drinks and filtered cold water is the second thing you want from the tap. It ranks below the 3-in-1 because it drops the ordinary mains hot and cold, which in most kitchens means keeping a second tap for washing-up water. It is a kettle and filter jug replacement, not a mixer replacement.

The tank is 2 litres, fully insulated, giving about 4 cups in one go with a 10-minute recovery and a standby cost of around 3p a day, against about 2p every time a kettle boils. The under-sink filter keeps limescale out of the tank and gives you cold filtered drinking water, so a jug comes off the worktop. QETTLE puts true boiling on this model as well, so it matches the bigger taps on temperature.

The trade-off is the maths. At £480 it is £80 more than the QETTLE 3-in-1 at £400, which boils at the same 100°C, holds the same 2 litres and adds mains hot and cold. Only buy this one if filtered cold water is genuinely the second thing you reach for every day.

For a household that gets through a lot of hot drinks, this 4-in-1 covers boiling, filtered cold and ordinary hot and cold from a solid brass spout that swivels a full 360°. It is the biggest tank on the page at 2.5 litres, which is why it sits above the smaller kits despite averaging 3.9 from 49 owners. The kit includes the tap, the boiler, a carbon filter and a spare filter.

The 2.5-litre boiler is quoted for 7 to 10 cups and carries a digital touchscreen with preset temperatures, so you can drop below a full boil for green tea. Water arrives at 98°C rather than 100°C, and the spout stays cool to the touch behind a spring-loaded safety catch on the boiling lever. The spare filter matters, because the cartridge is a six-month consumable.

The catch is the cup count and the record. Half a litre of extra tank over a 2-litre QETTLE cannot honestly double the output, so read 7 to 10 as small cups and the QETTLE figure as mugs. For £61 less than the £400 QETTLE 3-in-1 you get more water at once and 2°C less heat.

This is the value pick: for £194.98 you get the tap, a 2.4-litre boiler and an activated-carbon filter, backed by 124 buyers rating it 3.9. It is the cheapest complete boiling tap kit on this page and it holds the second-largest tank after the 2.5-litre YAMATARO units. A matte black finish at this price is unusual in a category full of chrome.

The 2.4-litre capacity works out at £81.24 per litre, roughly a third of the £240 per litre the QETTLE MINI costs, which is how it holds its place against a lower rating. The spout swivels a full 360° with an in-built hydro-aerator for the normal hot and cold, and the boiling handle is child-safe with cool-to-touch insulation built into the spout. The carbon filter is rated for water up to 500 ppm, so it copes with most hard-water areas.

The limit is temperature: 98°C rather than a true 100°C, so a purist will notice it on a pot of tea. It also weighs 9 kg, 1.13 kg more than the chrome version, which makes it an awkward one-person fit under a full sink. If the last 2°C matters, the QETTLE 3-in-1 is the cheapest true boil at £400, £205.02 more.

This suits a kitchen that already has a mixer it likes and simply wants hot water at the sink edge, for tea, stock or soaking a pan. It is a side faucet plus an under-sink tank rather than a replacement tap, so it needs a second hole in the worktop next to the one you have. If you are planning a worktop from scratch, a 3-in-1 makes more sense.

The tank holds 2.08 litres, within a cup of the 2-litre QETTLE boilers, and the element runs at 750 W with an adjustable thermostat, so you set the temperature by feel rather than picking from fixed presets. Water comes out at 210°F, which is 98.9°C, the closest anything on this page gets to the QETTLE taps without being 100°C. The stainless tank is the same design InSinkErator has been building for years.

What you do not get is cold water of any kind: no mains hot or cold, no filtered drinking water, just near-boiling from one handle. At £246.15 that is £51.17 more than the Ellsi 3-in-1, which gives you hot, cold and 98°C boiling from a single mixer. Buy this only if your existing tap is staying exactly where it is.

This is for someone who wants hot, cold and near-boiling water from one brushed stainless tap without paying QETTLE money. It arrives as a complete kit, tap, tank and filter, so there is nothing extra to buy on day one. For a family kitchen it is the simplest of the mid-priced options.

Water comes out at up to 98°C, which is enough for tea, coffee and filling a pan, and the boiling handle carries a child lock so it cannot be knocked on by accident. The brushed stainless finish hides fingerprints better than polished chrome, and the 3-in-1 body keeps filtered boiling, hot and cold on one deck. It is WRAS approved, so it is clear for connection to a mains supply.

The gap to the Ellsi is £64.02 for a very similar specification: 3-in-1, filter included, 98°C. What this adds is the child lock; what it lacks is a published tank size, so you cannot work out how many cups you get in one go the way you can with the 2.4-litre Ellsi. Only 64 owners have rated it, against 124 for the Ellsi at a lower price.

This is for anyone who wants the £195 Ellsi 3-in-1 specification in chrome rather than matte black: hot, cold and boiling from one mixer with the boiler and filter in the box. It sits below its matte sibling because 96 owners rate it 3.7 against 124 owners at 3.9. Same kit, different finish, different reception.

The brass body comes in at 7.87 kg, 1.13 kg lighter than the matte black version, and that is a real difference when you are on your back under a sink holding the tails in place. The 360° swivel spout uses the same hydro-aerator for the ordinary hot and cold, and the boiling handle is insulated so the spout stays cool to the touch. Like its matte sibling, this pours at 98°C rather than a true 100°C.

The problem is twofold: chrome shows every smear, and at £194.99 it is a penny more than the matte version for a lower average rating. If you want the last 2°C of temperature, neither Ellsi will give it to you, and the QETTLE 3-in-1 at £400 is the cheapest true boil at £205.01 more. If 98°C is fine, buy the matte one and keep the penny.