A thick copper wire that acts as a safety device on a gas burner. If the pilot light for the burner goes out, the sensor on the end of the wire cools and prevents the flow of gas to the burner. …
Thermostat
A control that automatically turns on a heater, furnace, or air conditioner when room temperature reaches a set level. …
Thermostatic Control
A device used to regulate the point at which the burner for the water heater is activated. …
Third-Party Origination
In a third-party origination transaction, the lender has another institution originate all or part of a mortgage. …
Three-Way Switch
A three-way switch controls one or more lights from two different locations. These are often placed at both ends of a stair or hallway. …
Threshold
A flat trim strip normally made of oak or aluminum that offers a durable and finished transition between the floors on both sides of a door or between indoors and out. …