Pre-heat function on baxi?

[Deleted member 128039]

I have a baxi megaflo 2 boiler and twice a day (6.30am and 5.30pm) I can hear it firing up for around 20 minutes or so. Is this normal for this type of boiler? I know some boilers have a pre-heat function that can be switched off but I’ve looked at the manual online and can’t see anything about this boiler having one. I suppose i’m just worried that the firing up twice a day when i haven’t had my heating on yet this winter is going to use energy that I don’t need to use.

 

[Deleted member 120897]

System boilers wouldn‘t be fitted with preheat, that function is for Combi boilers. If it’s firing up I’d say you have a sticking microswitch in a motorised valve.