The three elements needed for combustion
What are oxygen, fuel, and heat / ignition?
A possible result if air is moving too slow over the heat exchanger
What is overheating?
Provides 24VAC from the furnace to the thermostat
What is the R wire?
Effectiveness is measured in the milliamps it can produce
What is a flame sensor?
10% off Services & repairs
5% off new systems
What are discounts provided by the membership plan?
A toxic byproduct of improper combustion
What is Carbon Monoxide?
This process can remove leaks from ductwork and ensure better airflow to areas further from the furnace
What is aeroseal?
Sends 24VAC to the compressor contactor on a call for cool.
What is the Y wire?
Moves the combustion byproduct out of the home
What is an inducer motor?
What you do when when the client is looking over the option sheet
What is stop talking?
The amount of heat to raise 1 pound of water 1 degree.
What is a BTU (British Thermal Unit)?
The amount of CFM needed per 10,000 Btuh
What is 150CFM (90%)?
What is 130CFM (80%)?
Indicates there is a short in your low-voltage circuit
Will cut off power to furnace components when blower fails, there's insufficient airflow, OR if we have too much gas
What is a high limit switch / thermal limit switch?
The simplest and most straightforward method to organize an option sheet
What is "Good, Better Best" or "Bare Minimum, Better, Best"?
A type of gaseous fuel used in appliances which is heavier than air
90 degree turns add 10' equivalent length to this piping.
What is Exhaust Piping?
What are the Y and G wires?
If you think this part has failed, you need to test incoming gas pressure and the 24VAC going to the part.
What is a gas valve?
The three types of technicians
A method by which heat transfers via direct contact from one material to another
What is conduction?
Can limit airflow coming into the furnace to 666CFM
What is a 16x20x1 filter?
The G-wire will sometimes route through this device and allow it control of the fan between heating cycles
What is a humidistat?
A naturally open switch often blamed mistakenly for problems in the furnace
What is a pressure switch?
What is it? How much? Why buy? Why you? When have?
What are the five internal buying questions?