It's a condensing boiler as they all are these days but it is certainly NOT a combi-boiler.
In it's write-up it may not be a combi-boiler as such but apart from a "very small hot water tank they still work very much the same as each other.
However one of the main drawbacks is that the boiler will still keep igniting every so often just to keep the small hot water tank heated, which is a waste if it's not going to be used very much, whereas a combi boiler does not.
Unfortunately a bit of bad news for condensing boiler owners "
especially" for the Worcester Boilers.
Although this problem also effects other brands, Worcester Boilers seem to be effected more than others.
There is a
design flaw that even Worcester Boilers are aware of, which is, in severe winters the overflow pipe freezes back inside the boiler and has been known to quite often seem to explode with water cascading down the inside of the boiler and on to the surface below.
This happens when the tank recognises it is full and the overflow pump is activated and under pressure tries to eject the water, under normal conditions this is not noticeable and the pressurised water simply ejects out and down the overflow outlet pipe which has to go directly into a drain or below the ground level, this has to be this way because on these new boilers the overflow water can be slightly acidic (as in acid rain).
(Combi boilers do not work this way and the overflow pipe just stick out through the wall)
However, there is a cure to stop this from happening, but will cost you approximately £100 from Worcester Boilers.
It's called something similar to "A overflow expansion heater pipe"
Basically it stops the overflow tank from freezing.
If you doubt what I say, why would Worcester Boilers sell such a item if they did not know about the problem?
They have also stated they are not prepared to install the device as part of the unit as it only effects people who live in areas that suffer from "harsh winters" "Try telling all the people who had frozen boilers last year"
And yes, the heat that is lost in the room that it is installed in will require extra heating after being changed.
(especially to stop it freezing in the winter)
