hi co

jimf

is it just me or has anybody else noticed the high co for about 15/20mins while the new style firebird he gaskets are burning in

changed my fourth one today boiler spotless annually serviced co at 147 for about 10mins then started to drop quickly and settled at 19ppm

so don't be thinking you have a combustion issue until you let the gasket burn in for a while

Wearb

jimf wrote: »

is it just me or has anybody else noticed the high co for about 15/20mins while the new style firebird he gaskets are burning in

changed my fourth one today boiler spotless annually serviced co at 147 for about 10mins then started to drop quickly and settled at 19ppm

so don't be thinking you have a combustion issue until you let the gasket burn in for a while

What are you doing sticking your probe in so soon? :pac::pac::pac:

I know, only one zone on and you need to get it done before she cuts out. Are those the ones with the rubber surround?
Anyway I haven't noticed it. I start her up, turn the boiler stat to lowest (to check its working) then start packing my tools away, except for my allen key. I then fill-in all can of my service report. Then turn stat up fully and do my FGA. I suppose any residue has burned away by then.

I know that my method catches me out sometimes (have to go back for gauge etc.), when fga is not near what was expected, but not often enough to change my habits.

Will be interesting to hear what other have noticed about it.

DGOBS

When adding any new component in a combustion chamber, you may see hi CO for the first 10-30minutes, on both gas and oil appliances.

There can be oils used on components to prevent rusting in storage, or in the case of gaskets and seals there maybe glues used in the manufacturing process that cure when exposed to these high temps for the first time.

In the past, what I have always done was check my CO2 is correct, and excess air and flue gas temp are what I would expect to see.
Once satisfied, I go ahead and clean up and pack away my gear, usually by the time I finished my paperwork and went back for a final reading, all was back to normal with CO.

jimf

DGOBS wrote: »

When adding any new component in a combustion chamber, you may see hi CO for the first 10-30minutes, on both gas and oil appliances.

There can be oils used on components to prevent rusting in storage, or in the case of gaskets and seals there maybe glues used in the manufacturing process that cure when exposed to these high temps for the first time.

In the past, what I have always done was check my CO2 is correct, and excess air and flue gas temp are what I would expect to see.
Once satisfied, I go ahead and clean up and pack away my gear, usually by the time I finished my paperwork and went back for a final reading, all was back to normal with CO.

cheers tony don't do gas so cant comment
and yes I have noticed the higher than expected co with burn in gaskets before but these are a lot higher just wondering is it the rubber or the gasket itself

oh thanks wearb I forgot about sticking me probe in too early and waiting until up to temp :o:o

I tend to do it now before the boiler cuts out on lowest setting as if you have a problem you could be up to temp before your finished have been caught that way too many times

DGOBS

147 would not be really a high CO reading (in a flue to outside air dissipating quickly, not indoors!!) , would be a great score in snooker though.

If you think, most HE gas boilers give 200ppm CO as there upper limit for normal operation!

But yes agreed it would be a high reading against expected on an oil boiler, but have seen higher just by using too much DW40 in a combustion chamber. It could be from the rubber in seals either as you suggest.

jimf

youd make a few more bob for 147 in snooker tony

I'm not happy leaving a boiler with higher than expected co without an explanation only time I will is after a sooter when I know I will be back again a few days later

agusta

jimf wrote: »

youd make a few more bob for 147 in snooker tony

I'm not happy leaving a boiler with higher than expected co without an explanation only time I will is after a sooter when I know I will be back again a few days later

says the pool hustler:)

jimf

3 years later you still haven't taken up my challenge

afraid youd have to spend some of the communion money

agusta

i retired a good while back after beating the munster champion twice.play golf now,i still know the hustlers though:eek:

jimf

agusta wrote: »

i retired a good while back after beating the munster champion twice.play golf now,i still know the hustlers though:eek:

my theory of golf


18 interruptions in a good 4 hour walk

DGOBS

Not my game, was my old mans though, he was Leinster Billards champion back in the 70s!

Golf, a good walk spoiled