Boiler service

[Donwill]

An interesting link perhaps?

[Andrew Gabriel]

with schemes used in other countries, and showing ours works best.

[Tim Lamb]

Point of order....

Are these scale inhibitor dosing systems separate from the boiler? I have just had a combi (Veissman vitodens 100-W) fitted to an annexe and can find no mention in the handbook.

Water here is fairly hard and I plan to use a conventional ion exchange water softener.

regards

[Thomas Prufer]

CO test tubes: a glass tube that a widget draws a defined amount of air through, and the color change is proportional to the CO content.

Or the CO2 testers, used for efficiency measurement, working by chemical legerdermain:

suspect both are much easier to misuse than the electronic testers...

Thomas Prufer

[neverwas]

Thanks for the interesting link - which lead me to this one

which looks more directly at the legislation in other regimes. No surprise that the UK is more tightly controlled (in law at least). And also no surprise that the kit required for CO/CO2 measurement is more expensive to buy/maintain than CO kit. But heh - at least the UK is a world leader in regulation.

[Richard Russell]

When we had the engineer check our 'oscillating' boiler, the CO level (when in the oscillating condition) was so high as to cause his analyzer to shut down to protect itself, and even then it was so contaminated that even after being left for an hour to purge it still wouldn't zero!

He said that under normal circumstances such a high level would cause him to condemn the boiler as unsafe, but since it had been the same since new (over two years) he kindly left it running. He intends to return when his analyzer is working again!

Richard.

[YAPH]

No

If by 'measuring safety' you mean investigating atmospheric CO incidents then, no, it specifically doesn't: we're supposed to call in the Gas Emergency Service Provider (formerly TRANSCO) (who, AIUI, also may not be trained in dealing with such situations).

We were trained and assessed on using them for combustion analysis.

Yes, re-reading what you said I think both your statement and mine are true.

[YAPH]

Should be something about requirement to fit something in the installation & servicing manual.

Should be OK then.

[fred]

Thanks for that info.

Can't find a UK supplier and suspect they're still a bit more professional (read costly) than I need. The ones I saw mentioned here before were a bit more basic than those, probably in the 20quid range for a basic test. I have searched but can seem to come up with the right search terms.

I initially set up the boiler using a hired analyser from a specialist division of HSS but they don't do them any more so I'm looking for something basic to check that the combustion is still within limits.

[Tim Lamb]

OK Ta.

regards

[Donwill]

Perhaps this will help?

[mogga]

No - it works. Soft water here. :)