I have an open flued boiler at the moment. The boiler sits in an internal cupboard with the flue going straight up through the attic space and outside through the roof. I am thinking of replacing the boiler with a newer model. Could i fit a boiler with a fanned flue while keeping the existing flue pipes? Am i right in thinking that a FF system is room sealed and safer than an OF system?
Thanks in advance...
Gerry