I have a Viessmann Vitodens 100-W combi, installed in 2017, with a weather compensation module fitted. I am looking to make some gas economies by reducing the CH flow temp a bit to get the boiler running in condensing mode whenever possible. It is currently set to 32 (the range is 1-35).
Can anyone recommend a starting point for this setting, as I assume it's really a matter of trial and error to get to the lowest setting where the system still gets the room temp up to the required level (usually the programmer is set to 19C) in a reasonable time?
Thank you.
Can anyone recommend a starting point for this setting, as I assume it's really a matter of trial and error to get to the lowest setting where the system still gets the room temp up to the required level (usually the programmer is set to 19C) in a reasonable time?
Thank you.
