You need better rads or better placement of them if it takes 3 hours to go from 14c to 20c.
O and better insulation.
https://support.google.com/googlenest/answer/9244106?hl=en-GBSo here is the deal
Tried 18.5 for the night and this morning
the temperature seems okay but now there is no leaf appearing on the nest?
But i did get a leaf on 18.5 before i made this change. How does this leaf technology work?
You need better rads or better placement of them if it takes 3 hours to go from 14c to 20c.
O and better insulation.
Mine will go from 14 to 20c in minutes.
You might just have the water temperature too low.
Low and longer to heat up but more efficient with a condensing boiler.
or
Higher (hotter rad) and quicker to heat up but not as efficient with a condensing boiler.
Which uses more gas?
The flow temp doesn't dictate condensing or not, you need the return to be around 55c or less.
So at first heating up even a flow of 80c will condense.
Only when the system gets hot throughout do you need to reduce the flow temperature.
this thread has really got my thinking....
I see a lot of people here who have their nest or other schedules set to have a low temperature through the night. like 12c etc.
I will be honest here I had the night time temp to 19/19.5c but in the last few nights I changed it to 18.5C (thinking of lowering this a bit)
The thing I don't understand is this, let's assume that tonight I dropped the temperature to 14C at 12am, then I put the heating on for 18.5C at 6:30
Surely this big jump (from 14c to 18.5C) will be consuming much more energy than keeping the temps around about the same temperature all night long?
Curious without learning mode what does nest offer that a standard programmable thermostat doesn't, I thought the learning bit was the while point of them.I ditched learning mode ages ago!
it never really worked for me
In both cases heater will need to replenish the energy lost during the night. House will lose more energy when difference between inside and outside is higher. So by keeping temperature lower during the night, it loses less heat total.Surely this big jump (from 14c to 18.5C) will be consuming much more energy than keeping the temps around about the same temperature all night long?
this thread has really got my thinking....
I see a lot of people here who have their nest or other schedules set to have a low temperature through the night. like 12c etc.
I will be honest here I had the night time temp to 19/19.5c but in the last few nights I changed it to 18.5C (thinking of lowering this a bit)
The thing I don't understand is this, let's assume that tonight I dropped the temperature to 14C at 12am, then I put the heating on for 18.5C at 6:30
Surely this big jump (from 14c to 18.5C) will be consuming much more energy than keeping the temps around about the same temperature all night long?