What is the correct manifold pressure for a boiler using L.P. gas?

The correct manifold pressure for a boiler using liquefied petroleum (L.P.) gas is 3.5 inches of water column. This pressure setting is essential for the optimal functioning of gas-powered boilers. Maintaining the correct manifold pressure ensures that the appliance operates safely and efficiently, providing the necessary combustion for producing heat.

If the manifold pressure is set too high, it may lead to an unsafe combustion environment with excessive carbon monoxide production or even increase the risk of equipment damage. Conversely, if it is set too low, the boiler might not produce sufficient heat, resulting in an inefficient system and increased energy consumption. Therefore, following manufacturer specifications, which typically recommend a manifold pressure of 3.5 inches of water column for L.P. gas boilers, is crucial for safety and efficiency.