What type of boiler do i have/need?

[Simmo26]

Ok so i'm hoping im being a bit thick with this and missing the obvious so please bear with me.

Our current boiler is an old Ideal ICOS HE15, Standard 10yr+ underpowered newbuild boiler.
Its dying and beyond economical repair from what the guy who came to service it told us, so its upgrade time.

Now eveything i read on google points me towards it being a System boiler. No water tank in loft, just a white cylinder in airing cupboard upstairs, with a small white and a small red tank above it. Also the service guy told me it was an "un-vented" system.

A guy came to quote us for a new boiler and has suggested a worcester that is a "Conventional" boiler. (worcester 18Ri?). But we've got no cold water tank in the loft?

I've then found boilers that are Heat only?

Can anyone shed any light on what sort of boiler i actually need?

Thanks in advance,

Oli

 

[picasso]

Is the pump built into the boiler or separate ?

 

[Simmo26]

There is a pump next to the water tank. There is also an internal pump in the boiler according to the manual (see attached item 69 & 70) which further confused me.

 

[picasso]

You have a heat only boiler on a sealed system , you can replace it with a heat only or a system boiler.

 

[ianmcd]

worcester that is a "Conventional" boiler. (worcester 18Ri?)

The 18ri can be used ass open vent or sealed system, you have a sealed system so it is ok to fit that if that is the boiler you want.
Make sure your existing system is properly cleaned and inhibited , the WB Ri does not like dirty system water