How A Hot Surface Igniter Works



Once upon a time, basically every domestic gas heater was equipped with a pilot burner to achieve the job of ignition. Now, however, an increasing number of furnaces use a so-called hot surface area igniter rather. This part makes use of electrical power to start the procedure of combustion. In this article you will certainly find out more concerning exactly how a warm surface igniter completes this job.

Sequence Of Events

The first thing that occurs when your heating system obtains an ask for warmth is that the generated draft electric motor starts up. This ensure that, once combustion has actually begun, the exhaust byproducts will be safely aired vent out of your residence. A sensing unit after that reports that the motor has successfully begun, thus allowing the procedure to continue.

This is where the warm surface igniter enters play. The heater’s control board enables electric power to move to the igniter, which can soon be seen radiant red hot. To ensure that it has actually gotten to an enough temperature, a specific quantity of time is permitted to pass prior to the gas valve opens up. As soon as the gas has actually begun streaming right into the burners, it is rapidly fired up by the warm surface area. As quickly as burning has actually been launched, electricity ceases to flow to the warm surface igniter.

Safety Procedures

For optimal security, a hot surface area ignition system uses what is referred to as a fire sensor. The flame sensor is able to spot the warmth triggered by burning. When it does, it sends out the signal to stop powering the hot surface area igniter. If, on the other hand, a specific period of time expires in which the flame sensing unit can not discover a flame, it will instantly turn off the gas valve. This keeps raw gas from entering your house.

-