Burners

Question 1

Aerated pilot

Answer 1

Primary air mixed with gas stream prior to ignition
Brunson type flame is produced
Also referred to as Bunsen or linting pilot

Question 2

Post aerated/incinerating pilot

Answer 2

Primary air inlet is lifted closer to the pilot flame to burn off any lint or dust prior to mixing with the gas
Commonly used with gas dryers

Question 3

Target pilot

Answer 3

Target hood then redirects the pilot flame to the main burner

Question 4

Standing or continuous pilot

Answer 4

Remains burning all the time

Question 5

Intermittent pilot

Answer 5

Pilot lights on “call for heat”,lights the main burner and remains on for the main burner cycle and then is extinguished

Question 6

Interrupted pilot

Answer 6

Pilot lights on “ call for heat” lights the main burner and is extinguished after the main flame is proven

Question 7

Expanding pilot

Answer 7

Increase pilot flame size on “ call for heat”

Also known as continuous or standing

Question 8

Pilot turndown test

Answer 8

The main burner should light within 4 seconds without flame rollout
When pilot flame is extinguished it should drop out the power unit within 3 seconds

Question 9

Non-aerated pilot

Answer 9

Luminous the type flame
No primary air mix
Also referred to as non-Bunsen or non-linting