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Gas central heating on constant or timer?

rchan Avatar
6y, 1w agoPosted 6 years, 1 week ago
Little one is now coming up 6 weeks. Got the heating on constant at between ~22 & 24 celsius.

Is it ok to leave my combi boiler on constant or should I use the timer?!

Leaving it on constant... should I expect a big bill for this quarter?!
rchan Avatar
6y, 1w agoPosted 6 years, 1 week ago
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banned#1
22-24?

I´m glad I´m not paying.
#2
a good way to save on your bill is turn off the instant hot water on your boiler as its like keeping your kettle at a temp ready to drink 24/7 !! do you need hot water NOW for you bath ? we can all wait 10-20secs for hat water and save a big % off the Bill
good luck
#3
We had ours on constant last year, E-on put the bill up by about £10 (and again by £20 this Summer.. Hes just been to read the meter within the last fortnight - so am expecting them to rob me again sometime soon!)..
The yr before that it was on timer, but I remember it being whacked up the majority of the time because it was so cold. At least on constant its only at 16 at the very most (for about an hour when its very cold, just to take the edge off), then its back to 14, but during the night its only 11 (if Im home alone it will only be 11, I can cope with it being a bit colder! But when my boy is home its 14).

(Our hot water is on timer, heating is constant.)

What we really need is some decent windows, plus theres a huge gap between the front door.. We could do with looking at draft excluder's, those brush things that go on the letterbox (Seeing as the ppl who bring the cr*ppy free papers and leaflets suddenly decide to not push the things through the second the temperature drops!!).. maybe those reflectors on the walls by the radiators etc etc. Have you looked into that? 22-24 just seems a lot to me, thats all.



Edited By: Nikki999 on Nov 30, 2010 20:37: cant spell
#4
thanks for the tips in this thread guys didnt have a clue about the water can be turned off ( not constant) my heating is on all day long 23-25c if it drops below 23 its flipping cold in the house!
i am dreading my gas bill this year as swalec messed up our accounts and they've now ended up with british gas and 5 months in arrears thanks to swalec . I really dont understand our combi its remote control and thats all i can work lol, the rest is gobbledegook to me! i did manage to turn the water heat down and thats about it
#5
vinylandtrinkets
thanks for the tips in this thread guys didnt have a clue about the water can be turned off ( not constant) my heating is on all day long 23-25c if it drops below 23 its flipping cold in the house!i am dreading my gas bill this year as swalec messed up our accounts and they've now ended up with british gas and 5 months in arrears thanks to swalec . I really dont understand our combi its remote control and thats all i can work lol, the rest is gobbledegook to me! i did manage to turn the water heat down and thats about it


sounds like bad heat loss get it looked at will save you lots for sure
#6
q44q
a good way to save on your bill is turn off the instant hot water on your boiler as its like keeping your kettle at a temp ready to drink 24/7 !! do you need hot water NOW for you bath ? we can all wait 10-20secs for hat water and save a big % off the Bill
good luck


my hot water heats up on demand... starts off cold, take about 15/20 secs to heat up.
#7
toshapetriji
22-24?

I´m glad I´m not paying.


thermostat on the boiler is on minimum!
#8
rchan
toshapetriji
22-24?I´m glad I´m not paying.
thermostat on the boiler is on minimum!

No wonder it's on constantly then, why is it on minimum?
#9
I have my boiler running near maximum. The heating comes on as we require it.

I seriously think you're getting carried away with the need to keep the temp so high - our little boy was fine when he was born with the temp around 18 in his room.

If you start your baby's life off with 22-23 - they will get used to it and you will be broke.
#10
rchan
toshapetriji
22-24?

I´m glad I´m not paying.


thermostat on the boiler is on minimum!


Turn it up - running hotter water through the system is more cost effective as the room heats up and maintains the temp better.
#11
moob
rchan
toshapetriji
22-24?

I´m glad I´m not paying.


thermostat on the boiler is on minimum!


Turn it up - running hotter water through the system is more cost effective as the room heats up and maintains the temp better.


if i turn it up.... the house will get hotter...?!!!
#12
Yeah. Think about it this way.

At minimum, the water being pumped through your system is probably at about 50oC - radiative heat from that is poor, so your radiators aren't producing much in the way of heat.

My system pumps water at 75-80oC - the radiators are warmer, but as it is on for longer periods in this bad weather, the energy being used to maintain the temp at 75-80, once it gets there, is only slightly more than maintaining it at 50.

Seriously though, read my comment above about your room temps - we have another wee one on the way in 5 weeks, and I don't intend to have their room warmer than 17-18oC.
#13
On my boiler there is a switch - 'water only' or 'central heating & water'. It is currently and always on central heating & water.

There are 2 adjustable dials that allow me to turn the water or central heating from min to max (it does not show a temperature value).

Heating on min, and the average temperature around the house is ~22celsius.

If i turn the heating off, the thermometers can drop to 16celsius and its feels freezing in the house!
#14
me thinks i have a crap central heating system!
#15
rchan
me thinks i have a crap central heating system!


Why?
#16
I'm guessing it's running about 50 - turn it up and see how much quicker it heats up.

My home stays warm for a good couple of hours after the heating is off - like tonight for example, the heating will be off from 10pm - in bed before midnight - no worries.

Perhaps you're in need of insulation if it's much worse than that!?

Gonna have to head now, will pop into thread tomorrow to see.
#17
I have by heating on constant with the boiler stat on minimum, just to keep the house ticking over.
#18
jah128
rchan
me thinks i have a crap central heating system!


Why?


i have no 'real' thermostat for me to control the temp? I dunno - just feels like it pants, because I'm having to leave it on constant to maintain a temperature of ~22 celsius, without it on, it get too cold!
#19
It's on constantly because the bolier temp is so low so the house is being heated by warm radiators on alll the time, turn the boiler up and the house will warm up and the boiler will not be on as long. Are you sure there is no thermostat in the house somewhere?
#20
greg_68
Are you sure there is no thermostat in the house somewhere?


Not seen one anywhere!
#21
When I say 'on constantly' i mean the timer thing. It not constantly 'whirring' away eg, when I turn the hot water on, you can hear the boiler working!

i'm probably making no sense now!
#22
I never understand these boiler discussions and what's best to do and not to do,some say leave the heating on low all the time,others say that works out really expensive.

I don't have any thermostats in the house,i just looked at the boiler and the display says its 52,the heatings not on it's a combi boiler.

I didn't understand the bit about not having the water on either....
#23
i have a combi boiler and 2 dials, 1 for water and 1 for heating.. they go from numbers 1-7 (7 being the hottest) no indication on what temp it is but through the winter ours is on 3 during the day and 4-5 in the evenings (sometimes 6-7 but very rare).. We put ours on at 6:45am and it goes off at 9pm and usually costs us about £200 for 3 months through the winter well it did last year.
#24
CuteKitty26
i have a combi boiler and 2 dials, 1 for water and 1 for heating.. they go from numbers 1-7 (7 being the hottest) no indication on what temp it is but through the winter ours is on 3 during the day and 4-5 in the evenings (sometimes 6-7 but very rare).. We put ours on at 6:45am and it goes off at 9pm and usually costs us about £200 for 3 months through the winter well it did last year.

I guess it also depends what supplier you're with and what tariff etc
#25
pinkleponkle
I have by heating on constant with the boiler stat on minimum, just to keep the house ticking over.


IIRC you're a plumber?

Anyhoo, I've read a lot of discussions about the theories of this and that, but no one has carried out any kind of measurement to make their theory scientific.

To me though, it doesn't make any sense to have a house heated when no one is in there - i.e when at work - or when you're in your bed because the covers keep you warm.

The most efficient way to provide heat is IMO, to heat as and when required, if using a combi-boiler - running the output temp of the boiler as high as possible - control the output at radiator by thermostatic control - ensure your home is well insulated etc.

For instance, you output from your boiler at around 50 - to maintain that temp, isn't much cheaper than maintaining an output of 75-80.

Keeping the house 'ticking over' is pointless if no one is present within the house to benefit from the heat you're paying for.
#26
I find it hard to believe that people do not have any remote thermostatic control over their CH system. Is the heat of the house entirely dependant on you manually switching the boiler on and off.
#27
greg_68
I find it hard to believe that people do not have any remote thermostatic control over their CH system. Is the heat of the house entirely dependant on you manually switching the boiler on and off.


I don't have a thermostat in my room - as in one that links with the boiler - however, there are TRVs on the radiators, which do the same job, only not quite as accurately.
#28
perhaps i need to turn the temp on the boiler up... then reduce the TRV on the radiators down from max.
#29
I keep mine on 24/7 i have it on 21c during day and evening and turn down to 15c at night I was told this is best way to use it as less gas to keep it on than trying to warm house up from 10c to 21c
#30
miles136
I keep mine on 24/7 i have it on 21c during day and evening and turn down to 15c at night I was told this is best way to use it as less gas to keep it on than trying to warm house up from 10c to 21c


If you're home all day that makes sense to a point. If you're out at work for around 10 hours like most, it doesn't.
#31
moob
pinkleponkle
I have by heating on constant with the boiler stat on minimum, just to keep the house ticking over.


IIRC you're a plumber?

Anyhoo, I've read a lot of discussions about the theories of this and that, but no one has carried out any kind of measurement to make their theory scientific.

To me though, it doesn't make any sense to have a house heated when no one is in there - i.e when at work - or when you're in your bed because the covers keep you warm.

The most efficient way to provide heat is IMO, to heat as and when required, if using a combi-boiler - running the output temp of the boiler as high as possible - control the output at radiator by thermostatic control - ensure your home is well insulated etc.

For instance, you output from your boiler at around 50 - to maintain that temp, isn't much cheaper than maintaining an output of 75-80.

Keeping the house 'ticking over' is pointless if no one is present within the house to benefit from the heat you're paying for.


Yes I am a gas qualified central heating/plumbing installer. I have animals in the house so leave it on for them, also I like to have it on throughout the really cold periods as I dont want any burst pipes.
#32
So i'm supposed to turn the dial down on the water on my combi ?

Confused.com X)
#33
deb8z
So i'm supposed to turn the dial down on the water on my combi ?

Confused.com X)


I have no idea how you reached that conclusion from the info on this thread...

I guess it depends on who's method you want to follow.
#34
moob
deb8z
So i'm supposed to turn the dial down on the water on my combi ? Confused.com X)
I have no idea how you reached that conclusion from the info on this thread...I guess it depends on who's method you want to follow.

I did say i didn't get it earlier on,but nobody replied,post 2 said about the water,i'm even more confused then because that's what i thought you were advocating,turning the water down.......
#35
debz8 your not the only one who is confused. I turned my water down a little and when i had a shower it was luke warm ( not happy i love HOT showers) so its back where it was ( i think) our boiler is under 2 years old has a remote control thingy made by Baxi , found the manual in the pack we had when we moved in and it says to keep the boiler at 70 at all times and use the remote control to set the room/house temp!
i am none the wiser just going to have to wait for the bill and try and work out the best options after
1 Like #36
Set your hot water output for heating to near max or max. That way it will circulate at a higher temperature producing more heat. With combi-condensing boilers they work more efficiently at that higher temperature.

I also have my hot water output for my tap/shower supply up near max as well, as the incoming mains water is very cold at the moment, and requires more energy to get it to a suitable temperature for showering.

Hope that makes sense.

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