Under Sink Electric Water Heater

Catbells

muckybutt wrote: »

You can get over sink hand wash units as well, these just heat the water up as you use it so are economical in the sence they don't keep the water hot all the time when they are not in use.

Triton and redring do them amongst others

TRITON REDRING

Think these are ones which have their own tap but the sink has its own tap and would like to connect the water from the heater to the sink tap.

muckybutt

Catbells wrote: »

As I said its only for hand/face washing few times a day so dont need huge output of Kw - def dont want a big fuel bill.

Havent heard of vented or unvented. What does this mean? Thanks.

Right so over sink out of the equasion.

Unvented - a separate expansion tank is required for this system, when the water heats up it expands, this expansion needs to be taken up otherwise the heater and pipework will explode with the pressure.

Vented - this system a special tap is normally installed allowing the tank to "breath" when the water heats up, normally you will see the tap drip if this is the case. Vented taps are expensive !

^^^ Both in laymans terms

So rather than go down the route of a 10l tank under sink unit the other option you have would be for an in line water heater similar to http://www.aquahot.co.uk/water-heaters/lin-line-water-heaters/single-phase-electric/wijas-3500b-perfect-3-5kw.html hot water only when the tap is turned on, this will require wiring back to the fuse board ( consumer unit ) if it isn't already.

Ben84

Ectophile wrote: »

You mean something like this? http://www.!!!!!!.com/pictures/13851/ghetto_water_heater.html

Nothing like that! We've only got one kettle in the house and everyone has to share it

Seriously, a trip to the kitchen to put the kettle on is hardly challenging. Actually, to be fair, for some people with mobility problems it is genuinely difficult. However, I do meet a lot of people with terrible first world problems like a house full of running water sources and appliances to heat it, but not having them conveniently attached to each other in every location they might want hot water, who really think carrying hot water a short distance is medieval or something A bit of perspective could really help them.