Ciarra x Susgreenable 4-in-1 RO Purifier – 3s Instant Hot Water & Built-in Filter, No-Installation 3:1 Efficiency SGIWDR04-W

Had this RO water dispenser sitting on the counter for days now and I’ve ended up using it more than I thought. The tap water round here’s always been pretty hard and you can usually taste it in tea, but with this it’s noticeably better. I’ve pretty much stopped buying bottled water since getting it. The hot water part is what I use the most though. I drink loads of tea and it’s nice not having to wait around for the kettle all the time. My girlfriend’s been using it for her herbal teas as well so it gets plenty of use during the day. One thing I didn’t expect is how handy it is late at night – quick noodles or just a quick drink without messing about with the kettle, better than microwaving stuff at 2am anyway. It’s been sitting on the side since we set it up and doesn’t really get in the way. Simple bit of kit but does the job well.

The first thing to note about this water dispenser is the design. It really is a beautiful appliance, with a matt white finish. It fits my style and kitchen perfectly. The sleek machine is fairly compact considering its function. It fits easily under my kitchen cupboards and has the added bonus of being easily manoeuvred or used in another location. There are 2 tanks on the appliance - one for the main water store, and a smaller one for the filtered water. The filtered water jug can be removed and stored in the fridge for crisp, cold, filtered water. The machine warns you when the main tank water needs changing - after 48hrs. Before use, you need to run 3 lots of water through the machine in order to prime the filters for safe use. The small LED touchscreen is easy to use, with various temperature settings. I love that I can have fresh, filtered water at room temperature as I have sensitive teeth. One of my children will only drink water, but likes it cold, so we can pour some out into a separate jug in the fridge for him. Once filtered, the water is ready to dispense at your chosen temperature and volume. I worried that the 95 degree setting would be slightly too cool for tea, but it’s fine (although I’d suggest using decent quality tea bags for full flavour). The machine comes with a small separate drip tray which is similar in size and shape to a soap dish. It doesn’t hold a great deal, but has the advantage of being quickly and easily transported to the sink for emptying and cleaning. There are 2 filters included, one being a reverse osmosis filter, which is the pinnacle of water filtration. It does make a difference to the taste and even when using for tea I can tell the difference in the clarity of the drink, and no scum forms in the cup. The appliance is under the umbrella of Ciarra appliances, known for innovative design and value for the level of quality.

I ordered the RO Instant Hot Water Dispenser. This initially seemed like a good idea to replace my kettle, however there are a few issues with it. Firstly it is much larger and bulkier than my kettle and takes up valuable countertop space. Secondly, I am concerned about the two different filters that are already installed in the machine. They will need replacing when the digital display tells me to replace them which should be after 6 to 9 months for one filter and 12 months for the other filter according to the instruction manual. However there is no information on where to get new filters or on how much they cost. Given that the machine itself is quite expensive, I would expect that replacement filters might also be expensive. The machine is well built and the tap water and filtered water jugs are easy to get in and out. It is easy to set up and plugs into the mains. It comes with an instruction booklet. It would be better suited to a large kitchen or office.

For decades money has been tight, with four kids it’s been a struggle at times but the last one got his own place a couple of months ago and now my nest is empty it’s been nice to enjoy feathering it so to speak. For years the kettle was always on with their endless cups of tea and pot noodle suppers. So this instant hot water dispenser is my bit of a treat, which if I’m honest is probably a bit overkill for our two person household, but I love it. Walking in after a freezing walk with the dogs I can have a drink in my hands literally within seconds. I usually have a piping hot, large cup of tea (Yorkshire tea of course) which gives me that instant feeling of gratification. I make instant horlicks on the lower setting and of course the odd Bombay bad boy. The water is clean and safe. I don’t know how clean but the TDS display makes me feel like I’m doing something right. Its big. Despite not having the kids stuff everywhere it still takes up far more room than the kettle, so you do need to commit a fair bit of worktop space if you’re going to order it. The upside is that I don’t have to fill it regularly, it’s pretty quiet, and it gives me the feel good factor several times a day. It’s expensive and somewhat unnecessary for me but if you have a busy full house then having been in your shoes I think it would be worth the investment. To use it simply plug it in and flush it through. It’s simple, convenient and stylish looking. No convoluted installation necessary. I hope you find my experiences helpful.

This SusGreenable RO instant hot‑water dispenser is designed for people who want boiling or near‑boiling water on demand without waiting for a kettle. The 2.4 L tank gives you plenty of capacity for teas, coffees, cooking, and quick meals, and the 3‑second heating system means you get hot water almost instantly. The five temperature settings are a big plus — you can choose exactly what you need, whether it’s warm water for baby bottles, hot water for tea, or near‑boiling for cooking. The 4‑stage filtration system helps improve taste and reduce impurities, making it a good option if you prefer cleaner, fresher‑tasting water. Safety features are built in, and the clean white design fits easily into most kitchens without taking up too much space. A practical, fast‑heating dispenser that combines convenience, filtration, and precise temperature control for everyday use.

I’ve been using the Instant Hot Water Dispenser for a week now, and overall it feels like a very high-end appliance. The biggest standout feature is how fast it works. It really does dispense hot water in just a few seconds, which is incredibly convenient when making hot drinks, thanks to instant heating technology, which heats water almost immediately instead of waiting like a traditional kettle.
The multiple temperature settings are one of my favourite features. Being able to choose from different temperatures means I can use it for everything without overheating. It also lets you select specific amounts of water, which helps avoid wasting water and electricity.
The water quality itself is excellent.
A huge advantage is how easy it is to use. The touchscreen controls are simple and responsive, and there’s no plumbing required. You literally just plug it in, fill the tank, and it’s ready to go.
It also looks modern and sleek on the kitchen counter and feels well made. It definitely gives a premium feel compared to cheaper dispensers.
The only real downside is the price. It is very expensive compared to standard hot water dispensers or kettles.
Overall, this is a fantastic machine if you want instant filtered hot water and premium convenience. It saves time, improves water quality, and makes everyday use much easier but price is high and lack of use for me means I wouldnt purchase again.

It’s turned out quite useful. I mostly drink chai at home and the tap water here always made it taste a bit off. Since using this the water just tastes a lot cleaner, so the tea actually comes out the way it should.
The hot water feature is what I end up using the most. After a long day I just want a quick cup and it’s nice not having to stand around waiting for the kettle. It’s just there ready which makes things easier. The missus keeps nicking it for her noodles as well so I’ve had to hide it.
My mum came round the other day and kept asking what it was because she noticed the difference straight away when we made tea. Now she’s talking about getting one for herself.
It’s been sitting on the counter since we set it up and we use it pretty much every day. Simple bit of kit but does the job well.

I’ve tested quite a few water solutions over the years (filters, bottled water, kettles with descaling, etc.), and this Ciarra x Susgreenable RO purifier is one of the more practical options I’ve used in a UK home.

What I like (Pros):

Excellent for hard water: Living in Oxfordshire, limescale is a constant issue. This system noticeably removes that chalky taste and improves water quality.
No installation required: Huge plus if you’re renting. Literally plug-and-play, no plumbing or drilling.
3-second instant hot water: Very convenient for tea and coffee. It’s faster and more energy-efficient than boiling a kettle every time.
Temperature control: The different presets (especially 45°C and 85°C) are genuinely useful rather than gimmicky.
Compact countertop design: Doesn’t take over the kitchen, which is important in smaller UK homes.

Things to consider (Cons):

You’ll need to refill the tank regularly if you’re a heavy user (family or working from home).
There’s a small learning curve with the controls at first, but it becomes second nature after a few days.

Overall verdict:
If you’re dealing with hard water in the UK and want a no-installation RO water purifier with instant hot water, this is a very solid choice. It’s not completely maintenance-free, but the convenience and water quality improvement make it well worth it.

I’ve been using this Ciarra RO hot water dispenser for a couple of weeks now in my Birmingham flat. The instant hot water is definitely the biggest advantage – I mainly use it for tea and quick meals, and it saves a lot of time compared to a kettle. The water also tastes noticeably better, especially in a hard water area like ours.

That said, it took me a few days to get used to refilling the tank instead of just filling a kettle directly. Also, the machine is slightly bigger than I expected for a countertop appliance.

Overall though, it’s a very practical solution, especially for renters, and I don’t see myself going back to a regular kettle.

I’ve been using this RO purifier in my flat in Manchester for a couple of weeks now. Overall, it’s a solid product, especially if you’re renting and don’t want to deal with installation.

The water quality is definitely better than tap water – no limescale taste, which is a big plus in the UK. The instant hot water feature is very convenient too, although the first few days I had to get used to selecting the right temperature and volume.

One small downside is that you do need to refill the water tank fairly often if you use it a lot throughout the day. Not a deal breaker, but something to be aware of.

That said, it’s still much more convenient than using a kettle all the time, and I like that it’s more energy-efficient. Good overall, just not completely effortless.

I’ve been using this Ciarra RO hot water dispenser every single day since I got it, and it’s honestly one of the most practical appliances in my kitchen. In the morning I use it for tea, during the day for quick cooking like noodles, and in the evening it’s perfect for preparing warm water for my baby’s formula. The 3-second heating is incredibly convenient – no more waiting for the kettle.

What really surprised me is the water quality. Living in Manchester, the tap water can taste quite heavy, but with the RO filter the difference is very noticeable – much cleaner and softer. Also, no limescale build-up like with my old kettle.

It’s also ideal for renters since there’s no installation needed. Just fill the tank and plug it in. Very easy to use, and the black design looks sleek on the countertop.

I live in a rented flat in Birmingham where the hard water is quite severe, and limescale builds up ridiculously fast. I wasn’t keen on installing anything permanent, so this RO purifier was exactly what I needed.

The difference in taste is immediate – no chalky residue at all, just clean, crisp water. The 3-second instant hot water is brilliant, especially compared to waiting around for a kettle. It’s also noticeably more energy-efficient since it only heats what you use.

I mainly use the 85°C setting for tea and occasionally 45°C for my niece’s formula when she visits – very precise and convenient. The plug-and-play design makes it ideal for renters like me.

Honestly, it’s one of those upgrades you don’t realise you needed until you try it.

Review (EN):
Living in London, hard water has always been a problem – kettles scale up so quickly and the water taste isn’t great. I bought this Ciarra RO hot water dispenser mainly for convenience, but it turned out to be a huge upgrade for water quality too. The RO filtration really improves the taste, and I love that I can get hot water in just 3 seconds without waiting. No installation needed, which is perfect for my rented flat. I now use it every day for tea and even cooking. Honestly, it replaced my kettle completely.

Living in a high-hardness area in the UK, my kettle used to be covered in limescale within a week. This RO system has been a game-changer—the 4-in-1 filtration really gets rid of that chalky aftertaste. I especially love the 85°C setting for my green tea and the fact that it heats in 3 seconds; it's much more energy-efficient than boiling a whole kettle for one mug. I’m giving it 4 stars because the 2.4L tank is a bit small for a family of four, so we refill it quite often, but the water quality is undeniably bottled-standard.

I’ve had this RO machine on the counter for a few days now and it’s been dead handy, to be fair. The tap water down south has never been great—I used to just buy bottled water all the time. This actually makes it taste cleaner, not so heavy.

The hot water’s the main reason I got it though. I drink loads of tea and not having to wait for the kettle saves a fair bit of time in the morning. The missus is well chuffed an’ all because she can set a lower temp for her green tea.

I thought it might look a bit bulky on the counter but it’s actually pretty tidy and doesn’t take over the space. Took about two minutes to set up. With kids running around the child lock’s a good thing to have, and the display’s handy just to see everything’s working.

Hardly bought any bottled water since getting it, which was the whole point really. Glad I picked this one up.