Boiling water taps can be expensive, so it’s worth learning about the maintenance needed to keep them in good working order and extend their lifespan.
Whether you want to quickly fill a hot water bottle or make an instant brew, boiling water taps can be an energy-efficient alternative to a kettle (depending on a few factors) and saves you from waiting for the appliance to boil.
Below, the experts explain how to maintain this handy system, including when to change the filters, how often it needs descaling, and whether it’s possible to service it yourself.
How to maintain a boiling tap
"Maintaining a boiling water tap in a UK home is largely about light, regular care rather than ongoing intervention," says Michael Sammon, Design Director at Wodar.
To keep your tap in tip-top condition, he recommends cleaning the spout regularly using a soft cloth and a mild detergent to prevent limescale and grime build-up. "Abrasive cleaners and harsh chemical sprays should be avoided, as these can damage specialist finishes and seals."
Make sure you check the system for any unusual changes, including a dripping tap, leaks, reduced water flow, unusual noises, or slower heating, which could be signs of wear or scale build-up.
On that note, Stuart Hesk, Director at Hewer Facilities Management, also advises descaling the system to help prevent these issues – especially if you live in a hard water area – and remembering to check and replace the filters according to the manufacturer’s instructions. It’s also worth occasionally flushing the system by running hot water through it to reduce minor sediment build-up.
Harry Davis, co-owner and managing director of Eden Energy Partners adds, "From an efficiency point of view, maintenance really matters. Limescale or clogged filters force the system to work harder, which increases energy use. In homes where the boiling tap is connected to an efficient hot water system, keeping everything clean and free flowing helps preserve the low heat losses the system was designed to deliver."
Shop these boiling water tap essentials
With a two-litre tank, this boiling tap lets you pour up to four cups of hot water at once.
Improve taste and extend lifespan by replacing the water filter every six months.
Deep-clean your Qettle’s water tank using this multi-purpose descaler. Always read the instructions first.
Michael Sammon is the design director and co-founder of Wödår, a UK-based brand specialising in innovative hot water taps and kitchen fittings. Under his creative vision, Wödår emphasises 'choice through design,' offering multiple finishes and styles at accessible price points.
Stuart Hesk, Director at Hewer Facilities Management, has over 20 years’ experience working in the heating sector. Known for embracing innovative renewable energy technologies, and its propriety Heat Saviour™ system, Hewer are specialists in renewable energy design and installation across residential, commercial, and social housing.
Harry Davis is a co-owner and managing director of Eden Energy Partners, a company focused on smarter heating and cooling solutions. As a director of the company, he plays a leading role in the strategic vision, operations, and growth of the business, aiming to deliver sustainable and efficient energy systems to commercial and residential clients.
How often do you need to descale a boiling water tap?
If you live in a hard water area, Harry Davis says you may need to descale your boiling tap every three to six months. In soft water areas, it may be required as little as once a year.
While most modern systems have an indicator or alert to remind you, common signs that descaling is needed include noisy operation, error lights, reduced flow, or slower boiling.
Michael Sammon says, "Keeping on top of these intervals is important as scale build-up can reduce efficiency, affect water flow and, over time, shorten the lifespan of the system."
How often should you change the filter on a boiling water tap?
This will depend on the manufacturer, usage, and water quality, but Harry Davis explains that most recommend changing the filter every six to 12 months.
He adds, "A clean filter allows water to flow freely and heat efficiently, which is especially important when the tap forms part of a wider energy-efficient hot water strategy."
Can I service a boiling tap myself?
Basic maintenance, such as filter changes, cleaning, and manufacturer-approved descaling, can be carried out by most people when following the instructions.
However, Stuart Hesk advises leaving anything involving internal components, electrics, or pressurised parts to a qualified engineer.
"Boiling water taps operate at very high temperatures, so safety is key. If the tap is integrated into a wider hot water or heating system – as is increasingly common in modern, energy efficient homes – it’s also worth having periodic professional checks to ensure the whole system continues to operate as intended."
As you can see, maintaining a boiling water tap is relatively easy, and it shouldn’t put you off installing one altogether. Provided you carry out basic checks, descaling and cleaning, these systems should last a long time.
If you're undecided on whether a boiling tap is for you, compare how much electricity a kettle uses or learn about water softeners.
