hello, i have a myson boiler for central heating and hot water. it is an open vented system with emersion tank and 5 rads. the problem seams to be the rads get very hot to touch, they all have thermo valves fitted but still get very hot even when i turn the setting down ? the boiler does kick on and off this is cause of the thermostat within the boiler (this tells me the boiler is ok. do the rads need balancing and how would i do this ?
