I've a wood burnring stove, with a backboiler- simple gravity feed to
the tank. When its been on a while it 'bangs and hissses' and then I
hear water rushing around. Assume this is trapped air ?? If so can I ;
a) Undo the top hot pipe and let the air escape??
b) Fit something near the top hot outlet to let the air out maunally
c) buy something to add to the feeder tank to stop it- do these work ?
Any help/advice appreciated.