firebird super Q

[galway1]

hi,
i have this boiler and it works perfect in central heating mode but when it is put in hot water mode it heats water but the boiler is banging and i think that water has come out from the overflow pipe in attic to the outside of house.
i also whanted to know if it is difficult to add trv's to the rads
thanks

 

[Agile]

It sounds as if the flow is restricted.

It could be sludge or a failing motor valve.

Fitting TRVs to rads is simple for a plumber!

Tony

 

[kevplumb]

Fitting TRVs to rads is simple for a plumber!

do you have to be such a condesending git

op what is the system and any controls

the hardest part of fitting trv's is usually getting the old tails out of the rads and refilling the system