IMM wrote:
"Nick Brooks" wrote in message
...


If you don't like the nuisance plume, then
the only alternative is to have the boilers
flue fitted through the roof, as they do in
Germany. Get the boiler moved to the loft.

Don't move the boiler to the loft. One of the advantages of condensing
boilers is that the exhaust gasses are not hot so you can use long
plastic flues meaning the boiler doesn't have to be sited on an external
wall.

It depends on the boiler. The W-B is not one, it will have to be moved.


According to the Worcester Bosch Installation manual available here
http://www.worcester-bosch.co.uk/framest7.htm

" The standard Concentric flue system provides for a horizontal length
of upto 4m.

Systems are available to give a maximum horizontal lenght of 13m. A
vertical flue system upto a height of 15 meters is available"


Concentric flue extensions are "very" expensive.

please be specific howe much exactly compared to other types

The 28 HE cannot use
plastic drain piping for the flue.

Very interesting but not relevant as original poster hasn't got a 28HE

Who said anything about drain piping, this is uk.d-i-y not uk.bodge-it

Putting the boiler in the loft solves
many problems and releases space in the kitchen.




Repeating bad advice doesn't make it more helpful or accurate