G2 Gas Technician Module 21 Revised
Exam 2026 Questions and Answers
What type of vent is used on a wall furnace? - Correct Answer -BW Venting
What temperature does a low-intensity infrared heater fire at? where are they used?
- Correct Answer -1200 F and are used in factories and commercial buildings
How does a low intensity infrared heater work? - Correct Answer -Gas burner fires
into mouth of tube and hot flue gases travel through tube. It emits infrared heat
which is directed by reflector suspended above the tube.
What are high intensity infrared heaters made of? - Correct Answer -Porous
ceramic, drilled port cermaics, stainless steel or a metallic screen.
What temp does a high intensity infrared heater operate at? - Correct Answer -1800
F
What is the max length of a metal connector supplying gas to a suspended infrared
heater? - Correct Answer -2 ft
©COPYRIGHT 2025 ALL RIGHTS RESERVED 1
Exam 2026 Questions and Answers
What type of vent is used on a wall furnace? - Correct Answer -BW Venting
What temperature does a low-intensity infrared heater fire at? where are they used?
- Correct Answer -1200 F and are used in factories and commercial buildings
How does a low intensity infrared heater work? - Correct Answer -Gas burner fires
into mouth of tube and hot flue gases travel through tube. It emits infrared heat
which is directed by reflector suspended above the tube.
What are high intensity infrared heaters made of? - Correct Answer -Porous
ceramic, drilled port cermaics, stainless steel or a metallic screen.
What temp does a high intensity infrared heater operate at? - Correct Answer -1800
F
What is the max length of a metal connector supplying gas to a suspended infrared
heater? - Correct Answer -2 ft
©COPYRIGHT 2025 ALL RIGHTS RESERVED 1
