I have a Eurocal 70/90 Combi Oil Boiler.
A problem has developed in that the first upstairs radiator on the system stays hot all day, even when the heating system is switched off and both room and frost stats are set so that the heating should not come on.
The boiler is switching on and...
I have a Eurocal 70/90 Combi Oil Boiler.
A problem has developed in that the first upstairs radiator on the system stays hot all day, even when the heating system is switched off and both room and frost stats are set so that the heating should not come on.
The boiler is switching on and off...
I have a eurocal 70/90 combi boiler. What air pressure should there be in my pressure vessel when the water pressure is 0 bar and the system is cold? The system supplies an average size 3 bedroom two storey house.