The message ews.net
from "Doctor Drivel" contains these words:

There is one condensing boiler available that does not require a condensate
drain as well. The Atmos Drain Free:
http://www.atmos.uk.com/product_grou...n=000200130005

Hmmm, nice idea - there's a big problem round here with some condensing
boiler installations where the coyboys have just bunged the condensate
drain through the wall to let it dribble. When the weather's cold it
freezes up and the boiler safety cuts out - leaving you with no heating
when it's coldest!

Trouble is - it's more to go wrong, innit.

--
Skipweasel
Pay no attention to the man behind the curtain.