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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions.

combi condensing boiler , switch off when not in use?



 
 
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  #1  
Old July 24th 08, 04:34 PM posted to uk.d-i-y
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Posts: 327
Default combi condensing boiler , switch off when not in use?

currently i'm only using it for hot water on demand, so its not doing
a thing when i'm out at work.

however the central heating temperature setting is still on 70 or so
degrees. does this mean its having to keep some water heated this hot
in case the heating is switched off? or does it not do anything until
the heating is switched on?

just wondering whether its worth switching the boiler off when im
out? i do sometimes notice it starting up when im not using any water
and the heatings off.. wonder if im wasting any gas.
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  #2  
Old July 24th 08, 04:55 PM posted to uk.d-i-y
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Posts: 1,837
Default combi condensing boiler , switch off when not in use?


"benpost" wrote in message
...
currently i'm only using it for hot water on demand, so its not doing
a thing when i'm out at work.

however the central heating temperature setting is still on 70 or so
degrees. does this mean its having to keep some water heated this hot
in case the heating is switched off? or does it not do anything until
the heating is switched on?

just wondering whether its worth switching the boiler off when im
out? i do sometimes notice it starting up when im not using any water
and the heatings off.. wonder if im wasting any gas.



Which setting is on 70 - is this a setting on the boiler - or on a room
thermostat?

As you mention "on demand" I presume it is a Combi - but if you can provide
a make and model then the experts will be able to give a precise answer.
Does it have a timer? Do you have a hot water cylinder?


  #3  
Old July 24th 08, 04:56 PM posted to uk.d-i-y
external usenet poster
 
Posts: 234
Default combi condensing boiler , switch off when not in use?


"John" wrote in message
...

"benpost" wrote in message
...
currently i'm only using it for hot water on demand, so its not doing
a thing when i'm out at work.

however the central heating temperature setting is still on 70 or so
degrees. does this mean its having to keep some water heated this hot
in case the heating is switched off? or does it not do anything until
the heating is switched on?

just wondering whether its worth switching the boiler off when im
out? i do sometimes notice it starting up when im not using any water
and the heatings off.. wonder if im wasting any gas.



Which setting is on 70 - is this a setting on the boiler - or on a room
thermostat?

As you mention "on demand" I presume it is a Combi - but if you can
provide a make and model then the experts will be able to give a precise
answer. Does it have a timer? Do you have a hot water cylinder?


It says COMBI in the subject line.


  #4  
Old July 24th 08, 05:37 PM posted to uk.d-i-y
external usenet poster
 
Posts: 327
Default combi condensing boiler , switch off when not in use?

hi its a glowworm flexicom 30cx

boiler setting to control central heating temp is on 72 c, water is on
50 c but i can change these.

no room thermostat, just a basic timer to switch the boiler on for
heating.

no hot water cylinder.
  #5  
Old July 24th 08, 05:48 PM posted to uk.d-i-y
external usenet poster
 
Posts: 5,146
Default combi condensing boiler , switch off when not in use?

On 24 Jul, 17:37, benpost wrote:

no room thermostat, just a basic timer to switch the boiler on for
heating.


First job is to install (at least one) programmable room thermostat
(Chronogyr was the last I bought, but that was a while ago). It's an
easy install, and they're not too expensive, relative to fuel bills.
They're a far better means of controlling domestic heating than a
crude timer.
  #6  
Old July 24th 08, 05:52 PM posted to uk.d-i-y
external usenet poster
 
Posts: 2,231
Default combi condensing boiler , switch off when not in use?

On Thu, 24 Jul 2008 09:37:22 -0700, benpost wrote:

hi its a glowworm flexicom 30cx

boiler setting to control central heating temp is on 72 c, water is on
50 c but i can change these.

no room thermostat, just a basic timer to switch the boiler on for
heating.

no hot water cylinder.


Probably a sub-standard installation with no room thermostat (but that's
another thread).

Does the user manual give any hints any hints buzz words a

"eco mode", hot/warm standby?

Whe you come in how long does the HW take to come through to the tap and
settle down to a steady temperature. If more than 15s you can probably
assume that any 'hot standby' feature is turned off.





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  #7  
Old July 24th 08, 07:11 PM posted to uk.d-i-y
external usenet poster
 
Posts: 3
Default combi condensing boiler , switch off when not in use?


"benpost" wrote in message
...
currently i'm only using it for hot water on demand, so its not doing
a thing when i'm out at work.

however the central heating temperature setting is still on 70 or so
degrees. does this mean its having to keep some water heated this hot
in case the heating is switched off? or does it not do anything until
the heating is switched on?

just wondering whether its worth switching the boiler off when im
out? i do sometimes notice it starting up when im not using any water
and the heatings off.. wonder if im wasting any gas.


OMFG - the amount of thick people in newsgroups amazes me.
You are a real TROLL!
Good effort.


  #8  
Old July 24th 08, 07:36 PM posted to uk.d-i-y
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Posts: 9,132
Default combi condensing boiler , switch off when not in use?

On 2008-07-24 19:11:36 +0100, "Paul P" said:


"benpost" wrote in message
...
currently i'm only using it for hot water on demand, so its not doing
a thing when i'm out at work.

however the central heating temperature setting is still on 70 or so
degrees. does this mean its having to keep some water heated this hot
in case the heating is switched off? or does it not do anything until
the heating is switched on?

just wondering whether its worth switching the boiler off when im
out? i do sometimes notice it starting up when im not using any water
and the heatings off.. wonder if im wasting any gas.


OMFG - the amount of thick people in newsgroups amazes me.
You are a real TROLL!
Good effort.


... and you are who exactly? Have we been introduced?


  #9  
Old July 24th 08, 08:03 PM posted to uk.d-i-y
external usenet poster
 
Posts: 1,837
Default combi condensing boiler , switch off when not in use?


"benpost" wrote in message
...
currently i'm only using it for hot water on demand, so its not doing
a thing when i'm out at work.

however the central heating temperature setting is still on 70 or so
degrees. does this mean its having to keep some water heated this hot
in case the heating is switched off? or does it not do anything until
the heating is switched on?

just wondering whether its worth switching the boiler off when im
out? i do sometimes notice it starting up when im not using any water
and the heatings off.. wonder if im wasting any gas.


If the Central Heating is not switched on (due to manual selection or room
thermostat) then it shouldn't matter that the boiler is set to 70.

As there is no storage (internal or external) - then I am surprised that the
boiler fires when not in use. DHW is sensed with a flow sensor (not a temp
sensor as in my boiler)

Sorry - - can't help but will watch with interest.


  #10  
Old July 24th 08, 08:57 PM posted to uk.d-i-y
external usenet poster
 
Posts: 377
Default combi condensing boiler , switch off when not in use?

On Thu, 24 Jul 2008 20:03:03 +0100, "John"
wrote:


"benpost" wrote in message
...
currently i'm only using it for hot water on demand, so its not doing
a thing when i'm out at work.

however the central heating temperature setting is still on 70 or so
degrees. does this mean its having to keep some water heated this hot
in case the heating is switched off? or does it not do anything until
the heating is switched on?

just wondering whether its worth switching the boiler off when im
out? i do sometimes notice it starting up when im not using any water
and the heatings off.. wonder if im wasting any gas.


If the Central Heating is not switched on (due to manual selection or room
thermostat) then it shouldn't matter that the boiler is set to 70.

As there is no storage (internal or external) - then I am surprised that the
boiler fires when not in use. DHW is sensed with a flow sensor (not a temp
sensor as in my boiler)

Sorry - - can't help but will watch with interest.

And if the boiler is like mine it shows two lights when it is heating
water but only one when it is on at either HW only or HW and CH but
not heating water and none when it is switched off completely.
 




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