Hi there... i moved into a flat earlier in the year which has a Ferolli gas combi boiler (not sure of model or age - probably >5 yrs). Hot water fine but have a few issues with CH (now its winter), and hoping someone can give advice: 1) The pressure when boiler cold is generally <1 bar (now 0.8!) Rises just above 1 bar when in use. 2) Certain rads seem to fluctuate between hot and warm, even though room temp remains cool and rad stats all on high setting. Seems like not all rads in flat can be piping hot at same time. Temp on boiler gauge about 22'C when CH temp set at max.
Can someone tell me how to increase the pressure and if this could improve heating. Would apprciate any advice!!
Can someone tell me how to increase the pressure and if this could improve heating. Would apprciate any advice!!