Propane regulators are a critical part of using propane gas. So, what exactly does a regulator do? It controls the flow of gas and also lowers the pressure from the tank to the appliance. Propane regulators "bottleneck" propane down to a usable pressure. It also acts as a safety precaution between the tank’s high pressure and the appliance.

There are multiple types of regulators that serve different purposes. You may think one size fits all, but that is not true. In fact, a propane system will not work if it has the wrong type of regulator. Regulators have moving parts on the inside that can wear down over time, which requires the regulator to be replaced.