The Range of CO2 content indicating proper combustion in an oil fired furnace -
ANSWER✔✔8% to 12%
For accurate readings for a CO2 test, the analyzer probe should be placed -
ANSWER✔✔near the hottest part of the flue
The most common reason an oil-fired furnace is over firing -
ANSWER✔✔original nozzle was replaced with a higher capacity nozzle
Stack temperature - ANSWER✔✔is the temperature of flue gas in the flue pipe
minus the temperature of the return air
For combustion analysis a low CO2 reading indicates - ANSWER✔✔incomplete
combustion
For combustion analysis a high CO2 reading indicates - ANSWER✔✔average
operation
draft regulator - ANSWER✔✔A device installed in the flue pipe that controls the
amount of air drawn into the flue
if the reading on a draft gauge is high, the weight on the draft regulator, -
ANSWER✔✔should be moved to reduce draft
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