Gas on constantly or on and off...?

stevemcol

aelitaman wrote: »

Are you saying that when the timer or thermostat controlling the boiler is off that the bolier may still be on?

I though that when the timer was off the only way a boiler would fire up is if a frost control kicked in.

If the boiler's off it's off. It will only modulate when it's on and I can hear when it's on.

aelitaman

stevemcol wrote: »

No. Like I said, too many other variables. I'm only ever going to get a 'best fit' for my circumstances.

I actually don't think there's much in it either way. I'm just fiddling round the edges. Cavity wall insulation would probably make the biggest difference.

Ah, that is a shame.

macman

aelitaman wrote: »

Are you saying that when the timer or thermostat controlling the boiler is off that the bolier may still be on?

I though that when the timer was off the only way a boiler would fire up is if a frost control kicked in.

No, I'm talking about the burner modulation that occurs when the boiler is on and firing.

ally18

Hi,
I'm sorry to continue on this point but can someone advise on my predicament.
I have an old Baxi boiler that does not have a thermostat, just a dial which ranges from 0 to 6. I do have a timer connected to it however. My home is an extended 3 bed semi with 6 radiators, all of which do not have thermostats on and cannot be turned on or off unless with a spanner and strong hand! Therefore they stay on!
I normally set the timer and use it to have the heating on twice a day, morning and night. My question is which is the best dial setting to have it on? Does anyone know roughly what the temperatures of this boiler would be set at?

Thanks

oldskoo1

Well regardless of all the rubbish posted in the past few pages of going back and forth not actually achieving anything...

I have mine on 24/7, it suits me, its only going to cost me £220 for Nov to Jan which for my house and family is v.good, imo.

And yes, i agree, it is cheaper to have it on timed; in my experience not by much and for my needs it doesn't suit. Therefore i go with 24/7.


Is there really any much more to add to this prolonged pseudo debate.

JasX

The notion that keeping the heating on all day to 'maintain' temperature uses less energy is completly spurious and the reasons have been explained several times over .

Need proof? start at 10pm when your heating is just going off for the evening, note your meter reading, note it 24 hours later when operating your system on a timer. then switch your system to 'always on' and see how much gas you use over the next 24 hours.

Make sure the weather is 'broadly' similar on both days so its fair, ideally repeat several times for similar days with different outside temperatures.

Finally look at how much more gas you use every time to keep your house 'warm' and avoid 'warming it from cold' and consider how foolish you were to think keeping it warm was ever going to be remotely efficient.......

JasX

ally18 wrote: »

Hi,
I'm sorry to continue on this point but can someone advise on my predicament.
I have an old Baxi boiler that does not have a thermostat, just a dial which ranges from 0 to 6. I do have a timer connected to it however. My home is an extended 3 bed semi with 6 radiators, all of which do not have thermostats on and cannot be turned on or off unless with a spanner and strong hand! Therefore they stay on!
I normally set the timer and use it to have the heating on twice a day, morning and night. My question is which is the best dial setting to have it on? Does anyone know roughly what the temperatures of this boiler would be set at?

Thanks

Even if they don't have thermostats you should be able to 'choke' back some of them with a spanner so less hot water passes through some and more thru others... that'll let you send less heat to any rooms you don;t need to keep quite so warm and/or lose excessive amounts of heat to the outside

Cardew

ally18 wrote: »

Hi,
I'm sorry to continue on this point but can someone advise on my predicament.
I have an old Baxi boiler that does not have a thermostat, just a dial which ranges from 0 to 6. I do have a timer connected to it however. My home is an extended 3 bed semi with 6 radiators, all of which do not have thermostats on and cannot be turned on or off unless with a spanner and strong hand! Therefore they stay on!
I normally set the timer and use it to have the heating on twice a day, morning and night. My question is which is the best dial setting to have it on? Does anyone know roughly what the temperatures of this boiler would be set at?

Thanks

You would need to look at the Baxi instruction manual to be certain, but I have a old Ideal boiler with 0 to 6 controlling the water temperature.

For my boiler:

1 = 54C
2 = 60C
3 = 66C
4 = 71C
5 = 77C
6 = 82C

I suspect that yours will be very similar as 55C to 82C is the normal range.

I would think that without TRVs or a room thermostat? then you need to have the water temperature as low as comensurate with an adequate room temperature.

stevemcol

oldskoo1 wrote: »

Well regardless of all the rubbish posted in the past few pages of going back and forth not actually achieving anything...

I have mine on 24/7, it suits me, its only going to cost me £220 for Nov to Jan which for my house and family is v.good, imo.

And yes, i agree, it is cheaper to have it on timed; in my experience not by much and for my needs it doesn't suit. Therefore i go with 24/7.


Is there really any much more to add to this prolonged pseudo debate.

Quite right. We should have asked you for your opinion right at the very start then there would have been no reason at all to continue this fairly interesting conversation.

Please post your opinions on all topics at your earliest opportunity so the rest of us know when to stop.

SuzieSue

Cardew wrote: »

You would need to look at the Baxi instruction manual to be certain, but I have a old Ideal boiler with 0 to 6 controlling the water temperature.

For my boiler:

1 = 54C
2 = 60C
3 = 66C
4 = 71C
5 = 77C
6 = 82C

I suspect that yours will be very similar as 55C to 82C is the normal range.

I would think that without TRVs or a room thermostat? then you need to have the water temperature as low as comensurate with an adequate room temperature.

I also have an Ideal boiler and I remember that the instructions said that the dial should be set to 2 or 3 in the summer and 4 or 5 in the winter. I have a small 3 bedroom detached house and I have currently got it set on 4 and my radiators seem fine, although I don't know if this is the most efficient setting.