Help for an aul Boiler

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Jockster
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Help for an aul Boiler

Post by Jockster » Fri Jul 17, 2015 3:32 pm

Was speaking to a guy about the position of my oil boiler's chimney (as you do). He swiftly moved to recommending replacing my 10 year old boiler with a new condensing one--saves a fortune apparently!!

Has anyone any experience of whether this is worth doing?---There's nothing wrong with the boiler I have btw and there has been no discussion about the cost to change yet.

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Rooster
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Re: Help for an aul Boiler

Post by Rooster » Sat Jul 18, 2015 9:49 am

Jockster wrote:Was speaking to a guy about the position of my oil boiler's chimney (as you do). He swiftly moved to recommending replacing my 10 year old boiler with a new condensing one--saves a fortune apparently!!

Has anyone any experience of whether this is worth doing?---There's nothing wrong with the boiler I have btw and there has been no discussion about the cost to change yet.
Depends on the boiler, my boiler service man said that ours is only 2% less efficient than the best condensing ones and actually better than some of the cheaper model ones he looks after, he has all the gas analysis and temperature gear and knows what he is talking about, also there are certain problems with condenser boilers especially the indoor models with chimney problems and condensate which is actually pretty acidic.
End verdict on mine was he wants it as a spare for himself if I replace it, he will even do the replacement at no cost to get it.
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mid ulster maestro
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Re: Help for an aul Boiler

Post by mid ulster maestro » Sat Jul 18, 2015 5:11 pm

My service guy showed me a very quick demonstration on the state of my boiler. With the burner removed he tapped the top of the boiler with the handle of a wire brush. A rust cloud decended convincing me that it was time for a replacement. I got a condensing boiler installed and the difference is amazing. I probably use about a half tank of oil less than the old one, even during those severe winters a couple of years ago.
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Hans Indaruck
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Re: Help for an aul Boiler

Post by Hans Indaruck » Sat Jul 18, 2015 8:53 pm

mid ulster maestro wrote:My service guy showed me a very quick demonstration on the state of my boiler. With the burner removed he tapped the top of the boiler with the handle of a wire brush. A rust cloud decended convincing me that it was time for a replacement. I got a condensing boiler installed and the difference is amazing. I probably use about a half tank of oil less than the old one, even during those severe winters a couple of years ago.
Yep - would certainly agree with that. My 17 year old boiler gave up the ghost rather suddenly some months back and I replaced it (on the advice of Mr boiler man) with a condensing jobby. The difference has been really marked and produced savings in line with what MUM says - although we also took the opportunity to install thermostats on all radiators which will have helped somewhat. They are a cleaner, quieter and much more efficient piece of kit. Recommended! :thumleft:
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Re: Help for an aul Boiler

Post by mid ulster maestro » Sun Jul 19, 2015 11:43 am

Did the same Hans, with the thermostats on the radiators. Problem I have is I turn the things down and Mrs Mum turns them back up again.
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Re: Help for an aul Boiler

Post by BaggyTrousers » Sun Jul 19, 2015 11:53 am

I'm clearly at a parlous point with mine then, 16 years and never much to be done other than the annual/ish maintenance. I have a boiler man older than me , Bertie Marshall and Bertie knows his stuff. Told me that there were 2 types put in around here and mine is the good one, like Rooster's man, Bertie has all the bits and bobs & says the boiler is still very efficient after all these years a couple of percent off optimum.

No idea what the potential savings are but if there is much involved cost wise in early replacement it sounds prescriptive if your existing boiler is OK.

Jockie, you've been helped. :thumleft:
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Re: Help for an aul Boiler

Post by Rooster » Mon Jul 20, 2015 8:48 am

The difference is in the manufacturer of the boiler as much as the type of boiler, there are a huge number of very inefficient boilers but also some very efficient non condensing boilers and I assume that the new condensing boilers are similar but perhaps less of a difference due to regulations and most of the savings will be in the efficiency of the burners. Most oil burners have a consistent flame but there are some that vary the intensity of the flame and can save fuel that way, however the burner alone costs over £600 for the good ones
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Jockster
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Re: Help for an aul Boiler

Post by Jockster » Mon Jul 20, 2015 10:49 am

Thanks for the responses folks. :thumleft:

I don't mind spending the dosh if there is a decent return. I'll post whatever figures the boiler man comes back with.

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pwrmoore
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Re: Help for an aul Boiler

Post by pwrmoore » Wed Jul 22, 2015 2:01 pm

Jockster wrote:Thanks for the responses folks. :thumleft:

I don't mind spending the dosh if there is a decent return. I'll post whatever figures the boiler man comes back with.
I went from 5 fills of oil/year down to 3 when I replaced my old boiler with a new condensing one. But heating is even cheaper now that I've moved and have natural gas.

Be careful with talk of efficiency levels. Often what they are measuring is how efficient your burner is at converting heating oil into heat. They do this by measuring the levels of various things in the exhaust gasses. Once your boiler operative has completed the "service" they'll often regale you with tales of the amazing efficiency of your boiler - but they're really talking about your burner efficiency. Just as (if not more) important is how efficient your boiler is at converting the heat given off by the burner into hot water. Many old boilers are just big empty boxes with a jacket of water surrounding them and a few baffle plates to try to slow down/direct the escaping exhaust gasses. These are quite inefficient at transmitting the heat of the burner through to the surrounding water and a lot of your heat (money) escapes into the air as hot exhaust gas. The newer boilers are better designed and are generally much better at this second efficiency stage.
Paul.

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