We recently moved into a large fairly old 4 bedroom detached house in the Scottish Highlands, the house has a new Worcester bosch boiler and a separate programmer plus room thermostat and all radiators have tvr valves.
In the first year of living here i knew nothing about the best/most cost effective way to set up all these controls.
After some very expensive gas bills i decided to do lots of research but i wont bore you with the details, basically i came up with the following settings that have slashed our fuel cost in half!
We set all the radiator thermostat valves to max/5 the room thermostat is set to 18degrees and the boiler water temp control is set to 2, it goes from *123456 and max.
The programmer is set to turn the boiler on at 5am as we get up at around 6am it then stays on all day until 10pm we go to bed at 10.30pm
In this configuration the entire house is gently warmed to our comfort setting of about 17degrees, the room thermostat doesn't ever actually click of the burner as the temp never reaches the 18degrees its set it, this is because of the silly low boiler water temp setting of 2, by doing it this way the return temp is very low and the boiler is condensing alot of the time.
How do you know if your boilers working in condensing mode? well i have found out that, with our room thermostat it is a digital one that shows the room temp aswell as the set temp and most importantly it has a symbol that shows when its firing the burner.
as certain times you can look at the room stat see that it should be firing the burner but if you go look at the boiler the burner light is not on but the boiler is making a quite noise.
Also with the lower boiler setting of 2 there is now alot less steam coming out the flu compared to when it used to be set on 5 or 6.
In this setup our lpg gas bill is half what it used to be!!
Now i know this might not be of any help of interest to some as most people prefer to have there house at around 19 to 21 degrees.
But if your like us and are happy with 17 this setup will save you a ton of money! 17degrees is still a lot warmer than outside lol
Peace Matt.
In the first year of living here i knew nothing about the best/most cost effective way to set up all these controls.
After some very expensive gas bills i decided to do lots of research but i wont bore you with the details, basically i came up with the following settings that have slashed our fuel cost in half!
We set all the radiator thermostat valves to max/5 the room thermostat is set to 18degrees and the boiler water temp control is set to 2, it goes from *123456 and max.
The programmer is set to turn the boiler on at 5am as we get up at around 6am it then stays on all day until 10pm we go to bed at 10.30pm
In this configuration the entire house is gently warmed to our comfort setting of about 17degrees, the room thermostat doesn't ever actually click of the burner as the temp never reaches the 18degrees its set it, this is because of the silly low boiler water temp setting of 2, by doing it this way the return temp is very low and the boiler is condensing alot of the time.
How do you know if your boilers working in condensing mode? well i have found out that, with our room thermostat it is a digital one that shows the room temp aswell as the set temp and most importantly it has a symbol that shows when its firing the burner.
as certain times you can look at the room stat see that it should be firing the burner but if you go look at the boiler the burner light is not on but the boiler is making a quite noise.
Also with the lower boiler setting of 2 there is now alot less steam coming out the flu compared to when it used to be set on 5 or 6.
In this setup our lpg gas bill is half what it used to be!!
Now i know this might not be of any help of interest to some as most people prefer to have there house at around 19 to 21 degrees.
But if your like us and are happy with 17 this setup will save you a ton of money! 17degrees is still a lot warmer than outside lol
Peace Matt.
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