Monessen Hearth BTU/Hr Inspecting Heater, Pilot Flame Pattern, Burner Flame Pattern

INSPECTING HEATER

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 20 shows a correct pilot flame pattern.

Figure 21 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in Figure 21

•turn heater off (see “To Turn Off Gas to Appliance,” page 21)

•see “Troubleshooting,” pages 24 through 26

Thermocouple for Natural

Thermocouple

for LP

Figure 21 - Correct Pilot Flame Pattern

BURNER FLAME PATTERN

Thermocouple for Natural

Thermocouple

for LP

Figure 22 - Incorrect Pilot Flame

Pattern Pilot Burner

Figure 22 shows a correct burner flame pattern. Figure 23 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows yellow tipping of the flame. It also shows the flame higher than one inch above the log.

Note: When using the heater the first time, the flame will be opaque orange/yellow for approximately one hour until the log cures.

WARNING

If yellow tipping occurs, your heater could produce increased levels of carbon monoxide. If burner flame pattern shows yellow tipping, follow instructions, bottom of this page.

NOTICE

Do not mistake orange flames with yellow tipping. Dirt or other fine particles enter the heater and burn causing brief patches of orange flame.

If pilot flame pattern is incorrect, as shown in Figure 23,

•turn heater off (see “To Turn Off Gas to Appliance,” page 21)

•see “Troubleshooting,” pages 24 through 26.

Top of Flame Even	Yellow Tippping
with Top of Log

Figure 22 - Correct Burner	Figure 24 - Incorrect Burner
Flame Pattern	Flame Pattern

22 49D0090