R
ringy1
I was just looking up burner specifications for a firebird popular 90 on the firebirds web site. They have burner spec for the riello RDB burners for the popular 90, nozzle spec, pump pressure, Air, ect are theses specs still all the same for the older popular 90 boilers that have the riello 40 G3B burner fitted to them. As they dont specify on there site.