Afternoon all
We have just moved into a new house with a Combi boiler, previously house had a standard boiler & storage tank.
Have noticed over the last week or so that the boiler ticks in a lot even when it is off
(not manually activated, no timer and the thermostat is set lower than the ccurrent room temp)
Having looked at some of the overnight events. I see we are using between 3.5/4kw per hour.
does this seem normal?
Best answer by BPLightlog
Just a quick thought
Overnight, the heating was set at 15 deg and although the internal temperature was higher, the calculations in the boiler determined that there was a need to maintain some heat even though the thermostat wasn’t calling for it. You can see the estimated kWh effect in the graph which continued until the main heating programme kicked back in just before 6am.
I don’t like weather compensation personally as it does things like this which can be difficult to understand.
+5It will depend on the set up
Some have various sensors for outside temperature, weather compensation and a winter mode setting so you really need to try to check what is set currently.
If you don’t have a manual, there are several available if you know the exact make and model.
It could even be something on the hot water if it is set to pre heat to reduce time to get hot water at the tap
My Vailant combi boiler runs a ‘tickover’ and self-test at about 02:00 each night.
It only lasts a minute or so, fires the burner and runs the CH pump.
That makes sure that if the heating has been turned off (eg. for summer) then the parts are given a turnover/workout at least once a day so that they don't seize up from being idle for an extended time.
Hey
Welcome to the community!
I see a couple of our wonderful members have already stopped by with some advice. I’ll add some of my own 😄
My boiler has frost protection and as it’s currently below freezing in Scotland I can hear it circulating the system overnight to prevent the system from freezing and causing damage. It would be worth looking for a manual either in person or online so you can check your settings as
Hopefully this helps!
Make sure your boiler isn’t set to comfort mode (or equivalent) so it’s not keeping a small tank of hot water inside all day and night
+5Just a quick thought
Overnight, the heating was set at 15 deg and although the internal temperature was higher, the calculations in the boiler determined that there was a need to maintain some heat even though the thermostat wasn’t calling for it. You can see the estimated kWh effect in the graph which continued until the main heating programme kicked back in just before 6am.
I don’t like weather compensation personally as it does things like this which can be difficult to understand.
Thanks for the replies, will have a look at this looking at my smart metere usage, I worked out my extra usage overnight and when we were out was almost 35% in Nov.
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