Heating circulator incorrectly sized?

[PullerGas]

So you now understand how O2% in flue gas plays a role with respect to flue gas dew point temps?

I guess you will bring this up in future threads considering you are now a self confessed combustion engineer.

Regards steelmasons/Gaswizzard.

Do you remember Gaswizzard DH?

Oh SM!! You must be one of these dreadful professionals, yuk!!
Six fooking pages & the OPs not sure if the bypass has been checked??!!! DH has been sharing his pearls of Google wisdom & all for what? Unbelievable!!

 

[Steelmasons]

You owe me a keyboard puller..

 

[Dan Robinson]

but as burners are normally adjusted to work with 5-10% excess air (oxygen), .

10% excess air? Back to google Mr Hailsham.
Your homework for today......
3% O2 = ???? excess air.

Join the combustion chamber DH as plenty of information regarding combustion calculations etc...

Ooh ooh ooh me sir I know

 

[Steelmasons]

Let's hope Mr Hailsham will think twice when taking the Pee out of the so called professionals on here.

Oh go on then Dan...will save DH having to google.

 

[Dan Robinson]

Nah. I wanna see if Google works.

 

[Steelmasons]

Well it didn't work with regard to 5-10% excess air in flue gas.
Is excess air the same as O2?.....

 

[D_Hailsham]

Nah. I wanna see if Google works.

What makes you think that I need Google to know that air is (approximately) 21% Oxygen and 79% Nitrogen and other products? I learned that at school long before you were born.

 

[Dan Robinson]

And......

 

[D_Hailsham]

And......

What? You tell me.

 

[Dan Robinson]

You were the one asked the question.

 

[Steelmasons]

Nah. I wanna see if Google works.

What makes you think that I need Google to know that air is (approximately) 21% Oxygen and 79% Nitrogen and other products? I learned that at school long before you were born.

So why state Xs air and oxygen being the one of the same.

 

[Steelmasons]

but as burners are normally adjusted to work with 5-10% excess air (oxygen), .

 

[Steelmasons]

So basically what you are saying is that an appliance (premix) will operate safely with 5% excess air in flue gas.
It's plainly obvious you haven't a clue DH so hang up the shovel.

 

[bhm1712]

What is an ideal setting for the auto bypass valve?

I know this will be different for each system but how does one go about setting one up correctly??

 

[Steelmasons]

Call in a professional.