Unvented water heater

[Richard83]

Can anyone recomend a good unvented (under sink) water heater to feed 1 kichen sink tap, 1 bathroom sink tap and bath.
I caln't see the pipe run being any longer than 4 meter.

Thanks, Richard

 

[tamz]

No undersink heater will do what you want.
Ave bath holds 150 - 200litres @ 42 deg. Biggest undersink 30litres = very shallow bath
You need an unvented cylinder to feed what you require.

 

[Richard83]

Will that do away with the Header tank and will it make the hot water pressurised?

Thanks Richard

 

[holty]

yes but theres certain points that have to be taken into consideration.eg incoming flow pressure,location of d1/d2 pipe etc.these should be discussed by someone who has an unvented ticket.believe it or not you have to have one even if you fittted the 30L undersink heater.

 

[Richard83]

And would it be possible to buy one which will also feed sentral heating? I take it I would be looking at an in-direct cylinder thow!

 

[holty]

yep you can get indirect.the other option is a thermal store.it doesnt need an unvented ticket to fit em and are more tolerant with incoming pressure/flow issues.personally though, unvented all day long.