I get vibration in the pipe from the boiler to the hot water tank when the boiler is heating the water. As the hot water is timed to come on before we get up, the noise can be somewhat annoying. The noise is a humming vibration, not the clunking of water hammer.
The boiler (Alpha) is about 4 years old. It's a closed (pressurised) system. The dial by the tank suggests it is currently at 1 bar (and the red marker is set at 2 bar) however the dial on the boiler suggests that the pressure is just over 1 bar (has just been running) and the green zone is 0.5-1 bar. The filling loop is by the cylinder (and the cylinder is one floor above the boiler). Should I fill it until the black line matches the red one by the cylinder?
The pipework is exposed at either end but runs under tiled floors between the boiler and tank.
Any quick fixes or do I need to call someone?
The boiler (Alpha) is about 4 years old. It's a closed (pressurised) system. The dial by the tank suggests it is currently at 1 bar (and the red marker is set at 2 bar) however the dial on the boiler suggests that the pressure is just over 1 bar (has just been running) and the green zone is 0.5-1 bar. The filling loop is by the cylinder (and the cylinder is one floor above the boiler). Should I fill it until the black line matches the red one by the cylinder?
The pipework is exposed at either end but runs under tiled floors between the boiler and tank.
Any quick fixes or do I need to call someone?