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Natural gas- lighter then air
CH4 , boiling at -260

Propane - heavier than air
C3 H 8 , boiling at -44

members of the hydrocarbon family.

The combination of Carbon and hydrogen .


Ethyl Mercaptan is added for smell, at the city Gate. Detectable at 20%

But Tends to fade and fall in suspension.

Natural gas is composed mostly .. of
meth-ane
85 to 95%
The rest remaining is left to the
ethane.



Oxygen
Fuel
and
Heat
is what is needed to make a combustion.

But did you know !

30 to 50% of air needed for combustion is primary air.

If the combustion not there
if the combustion not right !

Carbon Monoxide gunna turn out your lights.

It's colourless
Odorless
Tasteless
It's just straight
toxic!

It'll start to make you
Dizzy, disorient to
Headaches!

Your muscles weaken, your muscles cramp, nausea and seizures
Will leave your right straight flat.

What could lead to such a Disposition
Well an
Incomplete combustion

Flame impingement
Poor mixture, poor quality Oxygen
To much fuel
And heat sink.


Undesirable
CO and
Aldehydes
Products of Incomplete

What you need , What you do

Perfect combustion
10 to 1


10 parts air 1 part Gas
5 parts excess so the fire doesn't gasp
15 parts delution

Natural gas
combination for complete combustion.

But I'd that enough?
Let's break it down let's dig in

Ignition temperature 1200
I'm not saying it's hell but it's hot 3500°F to be exact

If you earn to learn more it's in the Codes

If the combustion right
flue gasses take flight

A mixture of CO2 , water vapour, nitrogen, excess air, Sulphur,
heat and light.

Dew point of H2O , where combustion gasses take place, 130

causes corrosion
aformation
sulphuric acid and pitting the inside.

On another note
One boiler HP is
34,000 aka 10Kw

Isn't that something to ponder
But let's hold for a sec






B. T. U
British Thermal Units


Limits of Flammability also known as
The present of fuel in a mixture that will support a combustion


U.E.L
Upper Explosive Level

Propane 9.5%
Natural gas 15%

L.E.L
Lower Explosive Level

Propane 2.5%
Natural Gas 4%

Calorific value
Heat engery in a given volume of gas


Specific Gravity

weight of gas compared to
the weight of air in equal volume.

Be prepared