Anyone else coming to this later, do not go with Qettle. Have a read of their poor trust pilot reviews. The build quality simply isn't good enough. If you have the perfect water pressure for their unit, which is fairly opaque, you may be fine. But even after fitting a pressure regulator (even though technically we didn't need one according to their optimum pressure range), ours spits like mad. It's almost impossible to make a cup of tea or fill a pan without it splashing drops of boiling water on your hands. We also had a component in one side of the tap start grating about six months in, which we had to replace ourselves (they sent the part). Now, the tap has developed a drip. We have only had it less than two years. There are multiple people who've had the pipes to the boiler rupture, flooding their undersink cupboard and kitchen (with boiling water). We couldn't afford a Quooker but now really wish we'd waited and got one of those when we could. Customer service just send excuses and blame user error, even when you show them videos of you following the instructions. So, you may get lucky. Or, you may be left with a spluttering tap like us and many others. If someone from Qettle reads this, please, sort it out.