Household Boiler

Associate
Joined
13 Jul 2005
Posts
192
Location
Wigan
May seem a bit of a daft question but i was wondering which is more economical, having your boiler on high or low? :p

Now the logical way of thinking about it would be if its on low then its going to cost less? But i've been told that if you have it on low then the thermostat kicks in sooner and generates more power? :confused:

Something like that anyway, anyone shed some light?
 
Soldato
Joined
5 Mar 2006
Posts
3,975
Location
Nottingham
Modern boilers run more efficiently the higher you set them as it allows them to extract more latent heat from the burnt gasses. Haven't got much of a clue about older boilers but if the thermostat that controls the water temperature in the boiler (not the room temperature) is set to low then it'll just cut out sooner as it heats up.
 
Soldato
Joined
18 Oct 2002
Posts
5,381
If its 20 years old i take it its no a combi? Or is it a hot water tank in the loft type affair? For modrn combi's best to have them set to full pelt and have the heating on all of the time on a lower heat say around 16 degrees. Off and on type approach would use more energy i have been told, in the summer though its obv different.
 
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