What should be done if an LPG furnace installation results in low burner flames and sooting?

In the scenario of a low burner flame and sooting in an LPG furnace installation, measuring the gas pressure and installing a low-gas-pressure switch addresses the root cause of the problem effectively.

Low burner flames indicate that the burner is not receiving the correct amount of gas needed for efficient combustion. This can lead to incomplete combustion, which results in sooting. By measuring the gas pressure, a technician can determine whether the pressure is indeed too low, and if so, appropriate measures can be taken to rectify the gas supply issues.

Additionally, installing a low-gas-pressure switch is a proactive measure to prevent future issues. It ensures that the burner will not operate under insufficient gas pressure, which can lead to operational inefficiencies and damage to the furnace over time. This switch acts as a safety mechanism, shutting down the system if gas pressure drops to an unsafe level, thereby protecting the equipment and maintaining proper operating conditions.

In contrast to this approach, simply increasing the gas supply pressure could lead to over-firing of the burner, which can introduce additional risks and complications. Replacing the burner assembly may be unnecessary if the issue is simply a matter of pressure. Adjusting the thermostat settings would not directly address the low flame and sooting, as those issues