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caricature
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Devon,England.
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21-02-2020, 08:42 PM
11

Re: Boiler.

Originally Posted by galty ->
How Victorian.

Get a combie it is least 93% effecent(Means every £1 spent on Gas you get 93% worth of heat)

Your System runs at about 74%
Originally Posted by fender ->
You can get condensing system boilers which are as efficient as a combi. maybe that's what he has...
The last service showed it at 93%.
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caricature
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Devon,England.
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21-02-2020, 08:43 PM
12

Re: Boiler.

Originally Posted by Tedc ->
Yes, Hive running well here.
Does it help at all?
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galty
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rainham essex
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21-02-2020, 08:53 PM
13

Re: Boiler.

Originally Posted by caricature ->
The last service showed it at 93%.
Not if you have an open vented system with a tank in the loft
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caricature
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Devon,England.
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22-02-2020, 10:03 AM
14

Re: Boiler.

Originally Posted by galty ->
Not if you have an open vented system with a tank in the loft
Not going to get into an argument,but the paper work says 93%.

But supposing it was as you say,whats the cost to benefit ratio of replacement,factoring in an electric shower.Circa £1500 for the two,take some getting back with savings even over the lifetime of a boiler I'd surmise.
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galty
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rainham essex
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22-02-2020, 10:18 AM
15

Re: Boiler.

Originally Posted by caricature ->
Not going to get into an argument,but the paper work says 93%.

But supposing it was as you say,whats the cost to benefit ratio of replacement,factoring in an electric shower.Circa £1500 for the two,take some getting back with savings even over the lifetime of a boiler I'd surmise.


I spent my working life installing heating systems from 1969.
and had to take courses ever 5 years to keep up dated

You were lied to.

No open vented system is more than 70%
realspeed
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22-02-2020, 10:52 AM
16

Re: Boiler.

Chap went to a house to fix a boiler. whan the lady answereds the front door he asked where the old geezer was. She said he was working in the garden
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Tedc
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Berkshire, UK
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22-02-2020, 11:27 AM
17

Re: Boiler.

Originally Posted by caricature ->
Does it help at all?
It depends on how you want to use it.

If I'm going out for the day, I turn the heating down and then, half an hour before coming home, I turn it back up, or down, on my mobile.

Similarly, I adjust the how water heating times depending on when the bath is going to be used.

There are the usual arguments about whether or not that saves any money - I think it does.

Certainly it works for those weekends away, or holidays, as you can put it off or on from wherever you are.
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gasman
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Kent, UK
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22-02-2020, 11:56 PM
18

Re: Boiler.

@ Caricature. It would help if we knew the make, model and age of your boiler to estimate its efficiency.
@ Galty Modern range boilers (open vented) such as the Vaillant ECO-TECH run at 89.2 % efficiency.
The Viesman Vitodens can achieve 97% efficiency through its stainless steel HX
The Worcester Greenstar is 92% efficient.
Your efficiency rating must be based on old boilers
Have a look here : https://www.thegreenage.co.uk/should...-with-a-combi/
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23-02-2020, 12:09 AM
19

Re: Boiler.

We were told that as we have micro bore pipes a combi boiler pressure could split the pipes or joints
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23-02-2020, 12:33 AM
20

Re: Boiler.

When we moved in 5 years ago we had a new boiler fitted. More recently 2 radiators out and replaced with heated towel rails. so now 11 rads and 2 rails. As the towel rails are on the central heating system presumably the whole was flused at the same time . Not keen on microbore but it is what was installed when the house was built in the mid 1980's when microbore was "fashionable"
 
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