Boiler I. D. For high reading on analysers

[Matt0029]

I have to go to a boiler tomorrow that has been classed as I. D dangerous by another engineer. I haven't fully read the Cp12 they have been issued. Surely this means a C0/C02 ratio greater than 0.008. If it was between 0.004 and 0.007 the appliance would be at risk. Thanks for any input. Usually work on installs but starting to get in to land lord checks.

 

[townfanjon]

It might not just be the anyliser reading , it could be anything .

 

[Scott_1979]

Depends on the appliance, if it’s an open flued boiler it would be I.D. If it’s a fan flue’d room sealed appliance it’s at risk.

Have a look at the GIUSP

 

[Matt0029]

I briefly saw a picture of the Cp12. It mentioned too high a reading when analysed. Though I could see any figures.

 

[Matt0029]

It's fan flue'd room sealed yes.

 

[king of pipes]

You really need to see it a make your own diagnosis but gather all the information you can and do another flue gas analysis and go from there. Kop

 

[Matt0029]

Thanks yes I go tomorrow.

 

[Matt0029]

If I do a full check of it. And get an acceptable reading, after stripping down and cleaning the burner if needed. And checking everything else needed to check when doing a Cp12 on a boiler. An engineer would be able to write a new Cp12 stating the appliance is safe to use?

 

[king of pipes]

Yes correct, check the case seals ive had em off the scale due to a failed seal take some with you just in case ? Kop

 

[Scott_D]

Are you going to give a second opinion or to try and repair?

 

[Matt0029]

Abit of both really.

 

[EvilDrPorkChop]

Do you know what boiler it is?

 

[Matt0029]

Yes its an alpha he25.

 

[Burger]

Depends on the appliance, if it’s an open flued boiler it would be I.D. If it’s a fan flue’d room sealed appliance it’s at risk.

Have a look at the GIUSP

Hi Scott,

From what I read

Flueless - ID
Flued - AR

As per GIUSP

 

[Burger]

Yes its an alpha he25.

Don't know anything about these boilers, but have had high readings from Vaillant Ecotec pro where the condensate hose has fell off (known faulty ones)

 

[Matt0029]

Hi Scott,

From what I read

Flueless - ID
Flued - AR

As per GIUSP

Yes I got that too.

 

[Burger]

Matt, you also need to be looking at the warning notice if you haven't already, he might have classed it incorrectly. However you seem knowledgeable enough to rectify the situation, like you've said check everything over, re-analyse, don't forget to check the air intake.

 

[Millsy 82]

If you have to strip it you may need a gasket so may be better off taking one with you if you can get hold of one.

I've had some alphas in the past where the flue has turned brittle and cracked.

 

[Matt0029]

There was more wrong with the boiler than previously thought, the flue was heavily corroded and I could see the air intake had holes in it from rust. We decided on a new boiler in this instance. Thanks for the assistance.

 

[Scott_D]

There was more wrong with the boiler than previously thought, the flue was heavily corroded and I could see the air intake had holes in it from rust. We decided on a new boiler in this instance. Thanks for the assistance.

Will you be fitting or not your job?

 

[Matt0029]

Yeah I'll be fitting it yes.

 

[Scott_D]

Yeah I'll be fitting it yes.

What will be going in?

 

[Matt0029]

It's a rented house, landlord wants the cheapest. So it will be an ideal instinct. Which I think is the same as an ideal independent. Just different branding. Fitted a few over the last few years and never had any real issues.

 

[Scott_D]

It's a rented house, landlord wants the cheapest. So it will be an ideal instinct. Which I think is the same as an ideal independent. Just different branding. Fitted a few over the last few years and never had any real issues.

The independent is decent for the money.
Never fitted an instinct.

 

[Matt0029]

Depends on the appliance, if it’s an open flued boiler it would be I.D. If it’s a fan flue’d room sealed appliance it’s at risk.

Have a look at the GIUSP

So if a fan flue'd room sealed boiler was giving a CO/CO2 ratio of 0.008 or above this would still be immediately dangerous? With a reading between 0.004 and 0.007 would be an at risk situation? The GIUSP was a good, informative read thanks.