BOILER TEMPERATURE

MACKEM99

As the many adverts say - turn your boiler down to 60 degrees and save money.

I have done that and its fine in the milder weather.

However, as the weather has been colder recently I have noticed that the boiler spends a lot more time on and takes all morning at least to get the room I use most (and where the temp monitor is) to the required temp 20 degrees.  

Do you clever people have any advice, other than try it, as to whether I should increase the boiler temp slightly, thus getting to the required temp sooner when the boiler will be on "idle"?

Thanks

M99

Alnat1

Do you have TRVs on the radiators and if so, are you using them efficiently? Lowering the settings in rooms that you use less and keeping doors closed to "zone" areas should help.

Many aren't aware that a setting of 3 on a TRV is often around 20c, this is probably warmer than needed. Could you set used bedrooms to 2 or 2.5, any unused rooms to 1 etc.

MACKEM99

Alnat1 said:

Do you have TRVs on the radiators and if so, are you using them efficiently? Lowering the settings in rooms that you use less and keeping doors closed to "zone" areas should help.

Many aren't aware that a setting of 3 on a TRV is often around 20c, this is probably warmer than needed. Could you set used bedrooms to 2 or 2.5, any unused rooms to 1 etc.

I have the old type basic 1-5 thingies on each radiator and the rooms not used as much are set lower.

Astria

It all depends on the temperature loss of the rooms, the heating available in the rooms (type, age, size of radiators etc), and the performance of your pipework and boiler. If it takes all morning to bring your room upto temperature I'm guessing also that once the thermostat kicks in it takes a long time to bring the temperature back up? If so, you might need a highter boiler temperature.

My boiler temperature is still set at 55c, and it's keeping the house warm despite it being 0c outside and snowing, but then again the heating is never switched off and runs purely on thermostat so it never gets too cold over night either.

oldagetraveller1

"As the many adverts say - turn your boiler down to 60 degrees and save money."

Yes, it will, in theory, but what they fail to add is that doing it is not recommended for non combination boilers.

MACKEM99

Same as the myth that having a smart meter saves you money!!

markin

60c is fine if you set the hot water tank to 50-55c.


You have to manually weather compensate to keep the warm up time to within an hr, Its what some people have done for years, when really cold adjust it up 5c.

Do you have a condensing boiler? If not its a bit pointless lowering the temp, You also need modern radiators with fins on the back or have the heating on low 24/7 and boost when needed.


Adverts with no actual info are really useless and misleading.

MACKEM99

markin said:

60c is fine if you set the hot water tank to 50-55c.


You have to manually whether compensate to keep the warm up time to within an hr, Its what some people have done for years, when really cold adjust it up 5c.

Do you have a condensing boiler? If not its a bit pointless lowering the temp, You also need modern radiators with fins on the back or have the heating on low 24/7 and boost when needed.


Adverts with no actual info are really useless and misleading.

Yes its a condensing boiler only 3 years old.  Rads are old but still get very hot engineer who put in the boiler says rads are old but work well.  I will try what you suggest I have a small device which I place in the living room that allows me to set time/temp.  Should I set it to low overnight and then warmer when I need it during daytime?

Thanks.

Postik

oldagetraveller1 said:

"As the many adverts say - turn your boiler down to 60 degrees and save money."

Yes, it will, in theory, but what they fail to add is that doing it is not recommended for non combination boilers.

Why is it not recommended for non combination boilers?  I only ask because I don't have a combi any longer and I recently turned mine down to 60 degrees

BUFF

MACKEM99 said:

markin said:

You have to manually whether compensate to keep the warm up time to within an hr, Its what some people have done for years, when really cold adjust it up 5c.

Do you have a condensing boiler? If not its a bit pointless lowering the temp, You also need modern radiators with fins on the back or have the heating on low 24/7 and boost when needed.

Yes its a condensing boiler only 3 years old.  Rads are old but still get very hot engineer who put in the boiler says rads are old but work well.  I will try what you suggest I have a small device which I place in the living room that allows me to set time/temp.  Should I set it to low overnight and then warmer when I need it during daytime?
.

Your rads were almost certainly sized for a higher flow temp., turn down the flow temp & their output drops. If you want to run at lower flow temp for higher efficiency then to get the required output you may need to replace some/all with ones sized for that regime.

Are you in all day or are you up & out & back late afternoon/evening?

markin

Postik said:

oldagetraveller1 said:

"As the many adverts say - turn your boiler down to 60 degrees and save money."

Yes, it will, in theory, but what they fail to add is that doing it is not recommended for non combination boilers.

Why is it not recommended for non combination boilers?  I only ask because I don't have a combi any longer and I recently turned mine down to 60 degrees

hot water at 60c will always call for heat, Some are a little over worried about legionnaires risk if you set the water lower, but 55c will still kill it, It just takes more time.