All,
If hot water is stored at 60c this is measured with a probe at an outlet. What should you be looking at setting the boiler to? Would you expect a cylinder to recover without a single cycle if the boiler can modulate down to 5kw and the coil is rated at 19kw? I have had to set flow to 78 to get round the issue with micro firing on vaillant but this then has a negative effect on running in condensing mode for heating. With microfiring the cylinder took an age to be fully satisfied if running at more moderate settings. Would like to know what you would set at if microfiring wasn't present to ensure efficient heating of cylinder. Cylinder is around 4M away on insulated pipework.
If hot water is stored at 60c this is measured with a probe at an outlet. What should you be looking at setting the boiler to? Would you expect a cylinder to recover without a single cycle if the boiler can modulate down to 5kw and the coil is rated at 19kw? I have had to set flow to 78 to get round the issue with micro firing on vaillant but this then has a negative effect on running in condensing mode for heating. With microfiring the cylinder took an age to be fully satisfied if running at more moderate settings. Would like to know what you would set at if microfiring wasn't present to ensure efficient heating of cylinder. Cylinder is around 4M away on insulated pipework.