I have no heat in down stairs radiators for last few days. No problem upstairs. However the rads upstairs have to be bleed a lot. Also noticed that pressure in Volkera boiler keeps dropping to just above 0. Noticed yesterday that a pipe in hot press was leaking through the top out through what looks like a pressure valve. Is this where problem is? If so is it hard to replace.

Ruairi, January 2007

Need more info on the "valve" , it might be your pressure relief valve.

Daz, January 2007