Primary air is the air that mixes with the gas before the gas is burned.
A "gas furnace" is called a furnace, an "electric furnace" is called an Air Handler
lennox
the letter J..is...awesome!
Because you set it that way
Natural Gas Sometimes referred to as forced air systems, these heating systems burn natural gas, propane, oil, or use electricity to heat your home, and are the most commonly used heating systems. Air is heated in the furnace and then distributed throughout your house via ductwork.
The adjustable air inlet at the end of each of the burner tubes near the fuel nozzle.
an electric furnace runs off of 208/230 Volts while a typical gas furnace runs off of 120 also a gas furnace will have a valve for the gas relay where the gas enters the furnace.
The most important risk in using a gas furnace is carbon monoxide. If the heat exchanger in a gas furnace is damaged, carbon monoxide could leak into the air, causing a health hazard. A carbon monoxide detector and regular inspections would greatly reduce the risks and your worries in using a gas furnace.
because you got to light it....commen mistake
yes.
Yes,It depends if it is gas fired or electric.
Perhaps the pilot light is out and the gas has been turned off at the valve.