"CCF" means hundred cubic feet.
Exhaust Gas Recirculation.
As I understand the Gas engineer is the person who can work on the Natural or propane gas using appliances, such as range cookers, Boilers etc etc. The oil engineer is the person who can work on the boilers or appliances which run on the light oil, heavy.
If the boiler fuel contains Sulphur (and most do) combustion products in the flue gas will include Oxides of Sulphur (SO2 and SO3). SO3 combines with water (H2O) to make Sulphuric Acid (H2SO4). If the temperature of the flue gas falls below the dew point, the combination of the acid with the moisture in the flue gas causes corrosion of the flue gas duct work. Bypassing the economiser in the early stages of a boiler start keeps the flue gas temperature above the dew point.
coal and gas
http://hypertextbook.com/facts/2003/AdamCassino.shtml
"CCF" means hundred cubic feet.
ccf refers to cubic feet of gas. In this case, 1.5ccf is 150 cubic feet.
Therms Natural Gas to CCF Natural Gas multiply by 0.9756
1 hundred cubic feet.
213.83
A measure of volume- Ccf is one hundred (C) cubic feet (cf)
32.73
46.47
hundred cubic feet (Ccf)
1.034 therms
In hundred cubic feet (Ccf). A+
Congestive Cardiac Failure