tankless water heaters

bollob

looking for advice on replacing your traditional copper water tank with a tankless model (non gas). has anyone done this?

motivation here is saving money and space. oil fired central heating heats the water regardless - but it is only used in the sinks as we have 2 electric showers currently.

looking to move to a bath and shower combi but that would involve a bigger tank and wonder if anyone has explored this option - these heaters are recommended on various sites (mostly US - but these seem to be difficult to access in ireland)

any help welcome

Sparkpea

not exactly sure what exactly these are or how they work, can you elaborate a bit more or post pics of you're current setup incase theres another option?

Joey the lips

The only thing i can relate this to at the moment is a gas combination boiler where you heat the water rapidly as its used....

I have never seen this done with electric or oil.... Although i imagine it can be done with a fine mist of oil or kero but i have never seen it...

More examples or links would help..

Sparkpea

I *think* there is an oil fired combi boiler, I've never fitted one tho

what about those tiny cylinders that have 6 or 8 coils in them and heats the whole tank in 10mins or something?

bollob

my setup is a standard copper tank with sink and bath immersion. the tank is too small to fill a bath tho.

i have been looking for alternatives and have seen this:
http://www.stiebel-eltron-usa.com/tempra.html

however, i cannot see irish suppliers or anyone saying that they are using them here...

heinbloed

There are various types of (tanked and tankless) electric resistance heaters available. For showers as well as for sinks.

bollob

heinbloed wrote: »

There are various types of (tanked and tankless) electric resistance heaters available. For showers as well as for sinks.

i am keen to replace with a system that will fill a bath.
note how its recommended here:
http://www.energysolutions.ie/Water_Heating/Default.173.html

Sparkpea

this is what I was talking about

http://www.albionwaterheaters.com/product-superduty.html

astrofool

I just got a Zip instant electric water heater for an attic basin:

http://www.cnmonline.co.uk/Instant-Water-Heaters-c-198.html

bollob

i was wondering if the tankless heater:
1. is available and "done" - it appears to be, so that is a plus
2. can serve/ fill a standard/large domestic bath - (removing the need for a larger copper tank). i dont have gas currently (tho it is an option down the line). the literature on the UK site provided by astrofool points mostly towards serving showers (up to 3)...i have forwarded a question to them directly.

ronaneire

bollob wrote: »

i was wondering if the tankless heater:
1. is available and "done" - it appears to be, so that is a plus
2. can serve/ fill a standard/large domestic bath - (removing the need for a larger copper tank). i dont have gas currently (tho it is an option down the line). the literature on the UK site provided by astrofool points mostly towards serving showers (up to 3)...i have forwarded a question to them directly.

Hey did you ever find what you were looking for?

Outkast_IRE

i got one of these ordered in irish international in cork , cant remember the brand name im sure it was italian sounding , i remeber because it came set up for LPG but we had to get a kit with it to change a few things with it for natural gas

ronaneire

Outkast_IRE wrote: »

i got one of these ordered in irish international in cork , cant remember the brand name im sure it was italian sounding , i remeber because it came set up for LPG but we had to get a kit with it to change a few things with it for natural gas

Think they were looking for electric as the OP's first post mentions non gas

Plombier

If its electric then unless you have a three phase supply or something then your tankless water heater will perform only as good as an electric shower,
so in short no it wont be good enough for all of your house with electricity.

Its all about the flow rate you need by the temperature rise and the power input, if you can give these then we can tell you exactly how any
heater gas or electric will perform.

sullzz

Your best bet would probably be an oil combi boiler
http://www.firebird.ie/Products/StandardEfficiencyBoilers/Combi.aspx